Automotive Technicians Technical Discussion and Fixes for Mar 1, 2004

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	Help Request	Answers
	1990 BMW 735i 3.5L No Start VIN: WBAGB4311L BMW HELP! This 735 was brought in from a local body shop as a no start.come to find it started fine after the accident they pulled the car in and out of their shop a few times then it became a no start. I have done my basic checking of fuel and ignition system...	View
	1991 BMW 850i 5.0L low coolant warning VIN: WBAEG1313M There is no wiring going to the low coolant level sensor located in the bottom of the expansion tank attached to the radiator. We have look high and low and can not find any sign of the wiring. We have tried to trace the wiring down using Alldata but have had ...	View
	1993 Buick Regal 3.1L Hesitation, Cuts out, Stall VIN: 2G4WB51T9P Hi group. I have a 93 Buick here that is driving me nuts. What is does, randomly, hot, cold, or at idle, it seems as if the motor is cutting out. Not a misfire, I can watch the tack when it cuts out, and it does cut out also. New crank sensor, new plugs and wi...	View
	1990 Cadillac Fleetwood 4.5L Excessive Emissions, No Start VIN: 1G6CB533XL Car had been hit in right front corner, and has since been sitting for 4 years. I had to install new plugs (fuel fouled), and a catalytic converter(plugged) in order to get car running. This thing is running way rich, O2 reads 900 - 1000 mV most all the time, ...	View
	1990 Cadillac Fleetwood 4.5L Hesitation, Surge, Cuts out VIN: 1G6CB5335L we've spent far too manyhours on this and are hoping someone has the answer	View
	1987 Chevrolet V10 Custom Deluxe 5.7L Hesitation VIN: 1GCEV14K6H Hello everyone, I have a real problem vehicle here. Any help would be greatly appreciated. This truck has a hesitation problem in the AM. It starts good and drives good for about 2 miles, when you get to the first stop sign. On accell, there is a very bad hesi...	View
	1989 Chevrolet Beretta GT 2.8L voltmeter, tach, temp VIN: 1G1LW14W5K used car dealer, vehicle. digital gauge cluster works normally, untill Snap On MT2500 scanner is conected to the ALDL connector. Then the voltmeter, temp, and tach, go to zero. Is this a normal condition? If not any sugestions? It does not effet the operation ...	View
	1994 Chevrolet Corsica 3.1L MIL Lamp on VIN: 1G1LD55M1R this car has been in 3 times with the same code. first time original egr was bad. second time solenoid 3 had shorted out. replace as warranty. now i have the same code but the #3 solenoid is switching properly. has anybody seen this yet. please help russ Trouble codes: 77 (egr solenoid 3 fault)	View
	1998 Chevrolet S10 2.2L CD player VIN: 1GCCS1443W I have a 98 s-10 in the shop for a problem with the factory theftlock CD player. The radio portion works great but when you insert a CD, "ERR" is displayed and the CD comes back out. I've tried different CD's with the same result. The owner said that if he rep...	View
	1999 Chevrolet C1500 Suburban 5.7L Cuts out VIN: 3GNEC16R8X Bucking, Surging, Extreem tach fluctuation, sometimes dash lights flicker and abs light and ses light will illuminate, but no codes. Suspected ignition primary loss, but signal is steady untill problem is occuring. Problem is very intermittent, and can not dup...	View
	2000 Chevrolet Suburban 1500 LT 5.3L Passlock VIN: 3GNFK16T6Y We're replacing the ignition lock body and passlock sensor on this 'Burban. Alldata only gives the "re-learn" procedure when using the factory scanner, but I believe I can replace the lock body and sensor and start the vehicle without the factory tool--somehow...	View
	2001 Chevrolet Silverado 2500 6.0L Poor Idle Quality, Misfire VIN: 1GCHK29U61 Cyls 2 and 7 missing on the counter, scoped the injectors and the coils all good patterns. Switched coils between 2 and 4, switched injectors between 2 and 6. Miss did not move, Checked for vaccum leaks, and everything else I could think of. It is not missing ... Trouble codes: P0300	View
	2001 Chevrolet Suburban 1500 5.3L fuel pump VIN: 3GNEC16T91 Fuel pump stays on after the engine has shut off. Tried removing the fuel pump relay and the ecm2 fuse, but it just keeps running unless the battery is disconnected. Wiring diagram shows direct power from the relay to the pump. Any one seen this before I pull ...	View
	2002 Chevrolet Monte Carlo LS 3.4L engine VIN: 2G1WW12E12 hi, we've checked the motor, mechanically it appears sound, checked electronically with a sun machine using simi tech, passed everything in it. hooked up a scanner, no codes, all data appears normal, comparing it to another car with 3.4 engine in it. car will ...	View
	1988 Dodge Dakota 3.9L Mechanical VIN: 1B7GN14X4J customer complains rear brakes will not grab or even feel like they are working. he applies pedal and front wheels lock up and vehicle skids through a stop. replaced all hydraulic components as well we removed the rear load levelling valve and put in a new pro...	View
	1999 Dodge Ram 3500 5.9L Hesitation, Cuts out, MIL Lamp on VIN: 1B7MF3367X This truck will usually cut out for a split second or two, at 2200 rpm under load, and at that time the check engine light comes on, storing code p1689=no com between ecm and inj pump module. i can get past the 2200rpm area if truck not under load ie coming d... Trouble codes: P1689	View
	1992 Ford Explorer Eddie Bauer 4.0L power drain VIN: 1FMDU32X7N HELP!!! Mother in laws explorer!!! power drain kills battery overnight. appears as though main eec power relay may be staying ennergized. when connecting battery cables, fuel pump and other relays can be heard operating. First, without advantage of having tech...	View
	1996 Ford E-250 Econoline 4.9L Excessive Emissions, Hesitation, Lack of Power, VIN: 1FTFE24Y3T Dear Ford Techs and all those in the know, After the PCM was reprogrammed the vehicle will not communicate with a scanner, has a high idle. runs rich, very serious lack of power, hard starting and the fuel pump runs all the time with the koeo. The MIL is not ...	View
	1997 Ford F-150 Lariat 4.6L MIL Lamp on VIN: 1FTDF176XV To borrow a line from a Jerry Reed song ( I think it was Jerry Reed) "Lord, Mr. Ford". Came in from another shop with these codes, cust had the truck smog tested with the MIL on. Failed due to the codes (no kidding). The other shop had replaced the 02 sensors,... Trouble codes: P0171, P0174	View
	1999 Ford F-350 Super Duty XL 7.3L Starting VIN: 1FDWX37F8X I am having some trouble with this f350 blowing the #30 fuse in the under dash fuse box. this fuse powers the pcm relay coil, fuel heater, wastegate solenoid and idm relay coil. I have already checked the under hood wiring to the wastegate solenoid and the mai...	View
	2001 Ford F-350 Super Duty Lariat 6.8L 1-2 shift VIN: 1FTSX31S01 Hello all, I just wanted to get some input into the problem I am having with the 4R100 Ford trans. This is my personal truck. The other day I was driving to work and as I pulled away from a light it shifted from 1st to 2nd and then it felt like it went into r...	View
	1997 Geo Tracker 1.6L MIL Lamp on VIN: 2CNBJ1867V This car came in with a PO400A code. It's a egr flow malfunction code. The service manual says that the computer will use the egr bypass valve to send vacuum to the egr valve. It then watches for a difference in the map sensor readings. If the computer sees a ... Trouble codes: P0400	View
	1993 GMC C3500 Sierra SLE 7.4L rear brakes VIN: 1GTHC33N7P When you apply the brakes in the truck, it nose dives and locks the front wheels with steady pressure. it feels like the rear wheels are not getting enough pressure. it has rear ABS and no front ABS. I think the Rear ABS unit might be restricting the flow of f...	View
	1998 Honda Passport LX 3.2L MIL Lamp on VIN: 4SCM58WXW4 Came in with light on and code p1441. cleared code and drove on pkwy no code now. Tested fuel cap ok, checked plug connections on purge and vent solonoid (by charcoal canister), clean and tight. Visually looked at hoses and system all appears ok. Called dealer... Trouble codes: P1441	View
	2001 Honda Civic EX 1.7L 4th gear VIN: 1HGEM22901 This vehicle came to my shop without drive, barely move. Disassembled it and found all clutches burnt. Customer states she changed the fluid but by the way it looks I think she never did. I replaced all gaskets, seals clutch plates and disks. Linear solenoid/s...	View
	1987 Jeep Wrangler 2.5L Excessive Emissions VIN: 2BCHV8156H We are having a problem with this Jeep. It fails emissions because it will not go into closed loop. When it came in, it had failed the smog test for High CO and NOx. We replaced the EGR and solenoid and that reduced the NOx. We also replaced the O2 because it ...	View
	1988 Jeep Cherokee 4.0L Stall VIN: 1JCMT7849J The problem vehicle is back, this time with a cold stalling problem. Approximately 10 to 12 times stalls when cold only when putting into gear, more so in reverse. He says in drive he can pedal it but it doesn't run good for about 45 seconds. tps was recently ...	View
	1992 Jeep Cherokee Laredo 4.0L No Start VIN: 1J4FJ58S6N This vehicle blew this fuse about 3 months ago and a new fuse was put in by the owner at that time. The vehicle restarted and drove fine for about 3 weeks. Then the same fuse blew again, this time the fuse blows right away when the key is turn to the "on" posi...	View
	1995 Jeep Grand Cherokee Limited 4.0L strg whl, whls & tires VIN: 1J4EX78S0T At 40 MPH when hitting any kind of bump or pothole the entire front end violently shakes. This includes the steering wheel, front wheels, and front end. The shaking does not stop 'til the speed drops below 10 MPH. Anyone have a similar experience?? Thanks. Pe...	View
	1998 Jeep Grand Cherokee Laredo 4.0L Cuts out VIN: 1J4GZ48S3W I apologize in advance for this long post. This Jeep has a very intermittant cut out problem. When it happens, sometimes it will start right up, sometimes it has to sit awhile. About a month and a half ago when it first started happening, we had tested and rep... Trouble codes: P0351 (Ignition Coil 1 Primary Circuit)	View
	1998 Land Rover Discovery LE 4.0L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: SALJY12U7W Came in on a hook. Would run a little if you worked the throttle but not stay running. Had codes listed previously. Replace coil pack and wires. Will now start (eventually) and maintain an idle. Goes into serious lean misfire if you try to accelerate at all. R... Trouble codes: P0301 (Misfire Cyl 1), P0306 (Misfire Cyl 2), P1316 (Catalyst damaging event), P1313 (Catalyst damaging excessive emissions)	View
	1992 Lexus LS400 4.0L Battery VIN: JT8UF11E3N Looking for possible reason why we are seeing this amount of draw on battery after timeout.We will see about 67ma of current drawing on battery after it sits.Narrowed it down to the 10 amp fuse at underhood electrical center that is designated DOME. removing f...	View
	1996 Lexus LS400 4.0L MIL Lamp on, misfire codes VIN: JT8BH22F1T I have a lexus come in for check engine light on and a smog inspection,check for fault codes P0300,P0302,P0303 all misfire codes. freeze data for p0300 shows temp 195,engine load 15%,fuel trim 3-LT -2-ST ,engine speed 676 rpm,maf 8gpm,no real clues.scope secon... Trouble codes: P0300, P0302, P0302	View
	1998 Lexus LX470 4.7L Power window VIN: JT6HT00WXW This Lexus came in last week with the drivers window jammed up. Found the plastic brackets fell off the bottom of the glass. Drove it over to our local glass shop and they bonded some new brackets on. Now when you pull up on the window switch to make the windo...	View
	2000 Lexus LX470 4.7L suspension VIN: JT6HT00W7Y hi,group we have 2000 lexus LX470,the suspension drop in the front after shuting off the car,check codes no codes,activate front and rear suspension it goes up and down,front and rear height sensors working o.k.check fluid reservior fluid clear,no visioual sig...	View
	1996 Mazda MX-6 M Edition 2.5L Surge VIN: 1YUGE31D7T this car from hades has a constant stumble when warm at light cruise speeds 25m/p/h. and up. when the egr vacuum line is removed the problem goes away. driving the car, the egr opens fully at 1'' of vacuum at 25mph and above.we replaced the expensive egr, beli...	View
	1980 Mercedes-Benz 450SL 4.5L Cooling Systems VIN: WDB1070441 Here's one for the old timers. This engine has a weep hole on the l.h. side of the block in the lower rear corner. There is coolant leaking out of it. I have been through all of my factory service manuals and cannot find any information about this weep hole an...	View
	1990 Mercedes-Benz 300SE 3.0L Poor Idle Quality VIN: WDBCA24D3L car came from another shop, has intermittent high idle @1200-1500 rpm. checked system for codes none. checked system for vacuum leaks.has new OVP relay, tried a known good ECU,checked arcives found one similar problem with micro switch. we performed pinout tes...	View
	1991 Mercedes-Benz 420SEL 4.2L blower fan motor VIN: WDBCA35EIM Hi group, the 1991 Mercedes Benz 420sel (126 body), the blower fan doesn't work, first i checked the fuse, located next to fuse box, its ok, checked fan motor seperatly it works ok, i checked for wiring diagram i have the early version which is diferent than 1...	View
	1993 Mercedes-Benz 400SEL 4.2L wipers VIN: WDBGA43E9P hello everyone. i have a 93 400sel with an intermitant wiper failure, where the motor will not run. i am thinking maybe combination control? i know they have had problems in the past. of course the wipers work perfectly in the shop, so i have not been able to ...	View
	1992 Mercury Grand Marquis LS 4.6L No Start VIN: 2MECM75W2N greetings all, this vehicle came in for a no start condition. it has no spark, no noid, no fuel pressure. no power to fuel pump and the computer is not communicating with test equipment. fuses are all ok. ideas?	View
	1996 Mercury Grand Marquis LS 4.6L blower motor VIN: 2MELM75W7T This Grand Marquis's blower fan runs on high and next to high but won't slow down as the roller fan switch is scrolled down to low. I tested at the Blower Speed Controller (under hood behind the right valve cover) for voltage @ the Yellow/Red and Black with th...	View
	1993 Mitsubishi Galant ES 2.0L 1-2 shift VIN: JA3CH56D9P The vehicle will go into limp in when it shifts into second gear; also the 1-2 shift is very harsh. If you drive the vehicle above 40mph and turn the key off & back on it will stay in 3rd gear it will not go into overdrive I do get RPM flair up when it is in 3...	View
	1995 Opel FRONTERA 2.0L alarm VIN: SED55SUD2T This car towed in as a non runner,alarm will not reset.I have left the battery disconnected over weekend reconnected it this morning alarm system worked once (indicators flashed when key turned imobiliser on steering colum worked engine started first time) now...	View
	1981 Other European 400i 4.8L Distributor VIN: 39685XXXXX Car is a grey market in for a pre-purchase inspection. I've covered everything that's cropped except for this. On return to idle after blipping the throttle the distributor drive will make a noise that at first sounds like a timing chain. It quiets down after ...	View
	1993 Pontiac Grand Am SE 2.3L timing chain/tensioner VIN: 1G2NE5435P hi. we had installed a timing chain on this vehicle 6 months ago due to chain hitting cover. replaced it with complete chain kit(gears,guides,chain and tensioner). vehicle returned last thursday. customer says they went to start it that morning and it was maki...	View
	1998 Saab 95 2.3L Noisey lifters VIN: YS3ED48C4W This car has been imported by car yard. Had oil change and filter service on arrival(not by us). Lifters very noisey most of the time. Suspected short running so drove approx 40 miles with no change. Next morning engine is quiet. Drove car another 40 miles, on...	View
	1992 Saturn SL 1.9L Stall, Misfire VIN: IG8ZK547XN This saturn is driving me nuts. It has a very intermittent miss on a cell when it's mostly cold. Vehicle has new coils & new wires. I did a top engine clean on it and it ran great for 1-1/2 days. I had the lab scope on the plug wires & injectors to see if I wo...	View
	1988 Toyota soarer .0L Igniter Cap& Rotor I need to get part's to canada for this car need coil with igniter. need cap rotor need pass or driver side door glass.Need radiator. need someone with connection to japan or helpfull info. Thank's Rob [...].	View
	1989 Toyota Camry LE 2.5L Poor Idle Quality, Hesitation, Surge, Poor Fuel Economy, backfires VIN: JT2VV22F6K This vechile runs fine cold. At operating temperture it has very little or no throtle response from 1/4 to 3/4. Accelerates fine but at 1/4 throtle it startes to miss and backfire. If you keep accl. up to 3/4 it takes off with all kinds of power runs perfect, ...	View
	1995 Toyota Tercel DX 1.5L MIL Lamp on Having trouble with this one. Aprox. 4 months ago car came in with p0401 code. Cleared codes and released car to customer -- light returned on way home. Car was taken to another shop (with out avail), and eventually came back to ours. Once in shop first tested... Trouble codes: P0401	View
	1998 Toyota Camry CE 2.2L Poor Fuel Economy, MIL Lamp on VIN: 4T1BG22K9W customer came in with mil on and no other complaint.we scanned vehicle for codes p0171 in history. scan data, sensor not responsive to false air or added propane. replaced a/f sensor,sensor data slow to move? voltage sits around .650 seldom changes.vehicle run... Trouble codes: P0171	View
	2000 Toyota Solara SE 3.0L MIL Lamp on VIN: 2T1CF28P3Y i have a 00 solara 3.0 in the shop for codes 1130 & 1150. the car was towed in with a no response off idle complaint. multiple missfire and lean/rich codes were pulled prior to clearing codes. 1130/1150 & p0174 (rich) returned on 1st test drive. if im reading ... Trouble codes: 1130 (a/f sensor output voltage), 1150 (a/f sensor output voltage)	View
	1990 Volkswagen Golf 1.8L transmission VIN: 3VWFA01G1L vehicle will not shift into reverse when warmed up. customer reports that thetre was a grinding noise prior to the affliction.	View
	1997 Volkswagen Jetta GL 2.0L speedometer VIN: 3VWRA81H2V The VW I am working on has thrown me for a loop. I have repaired all the grounds in the speedo circuit. Checked all the power supplies. And checked waveform patterns throughout the system and everything seems fine. The problem is, when the vehicle reaches betw...	View
	2001 Volkswagen Jetta GLS 1.8L mil VIN: 3VWSD29M41 Hello Vw Guru's Need some help with this little Jetta's turbo. Car came in with mil light on and 2 codes pertaining to the turbo. The one stated above and an additional on stating that there was a loss of presure between the turbo and intake. I proceded to sm... Trouble codes: P1200	View
	2002 Volkswagen Passat GLS 1.8L MIL Lamp on VIN: WVWPD63B82 Customer complaint was MIL light and funny noise under hood.Checked codes and found PO411 air injection system wrong flow.Did not have scanner to activate air pump.Cleared codes and let go.My bosses sisters car.Came back next week with same code.Car sat until ... Trouble codes: P411/	View
	1994 Volvo 850 Turbo 2.3L engine VIN: YV1LW5715R originally had problem with overheating (combustion gases seen coming into the tank). Added block sealer as directions; fixed for about 800mi. Came back. Pulled head; leak definitely seen on cyl. sealing ring on #2,3,4 block sanded block surface with #220, #32...	View
	2000 Volvo V40 1.9L MIL Lamp on VIN: YV1VW2556Y Replaced exhaust cam reset valve, but MIL comes on. Cleared code, but returns after 5 minutes driving. Car passes Ca. smog however check engine light comes on again. Tryomg to get smog. cert. (annual test). Our PDA scanner shows 9.7 volts at valve connection, ... Trouble codes: P1014	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1994 Cadillac DeVille 4.9L MIL Lamp on VIN: 1G6KD52B2R we replaced the computer again,we did the egr test with the master tech and it would not turn on the egr solenoid so we replaced the computer along with the egr solenoid,road tested 40 miles all seem to be well,others said alot of trouble with solenoids,plugge... Trouble codes: 48 (no egr flow).	8
	1993 Chevrolet Astro CL 4.3L No Start, Flooding VIN: 1GNDM19W1P Hi Guy First of all I want to thank everyone who took the time to read my mail. A lot of techs cmes up to assit me . Dale [...], Alwin and a lot more that I cannot mentio...	23
	1992 Chevrolet Cavalier RS 2.2L Mechanical VIN: HJWE34UI45 If abs light is on, that may keep valves from going to home position, and make it impossible to bleed . i was unsure about the position of the valves. thought i may need GM scanner. Tried bleeding brakes with engine running so the valves don't move out of posi...	4
	1995 Chevrolet Lumina 3.1L Unknown VIN: 2G1W152M45 hello every body . every body was right it was the t.s swich replace the switch and the brake lights came on .i would like to thank every body by name but i had so many replies over 35 .thankyou very mutch guys you ben agreat help thats why i love America...	35
	1996 Chevrolet K1500 Suburban 5.7L drive axle seal VIN: 1GDFK16R4T Thanks to all who replied. Most said to use a really big slide hammer. I had one at my disposal but could not get a good swing at it while the differential was in the truck. Once we removed it from the vehicle it was a piece of cake.	11
	2000 Chevrolet Cavalier 2.2L MIL Lamp on VIN: 3G1JC5243Y Thanks to everyone who helped with this problem, the vehicle needed to have more CNG added to the tank before I could do anymore diagnostics. I will keep the emails that were sent to me for diagnostic checks when the vehicle returns. I am also in the process o... Trouble codes: P1202 (Gas Mass Sensor Frequency Low).	4
	2001 Chevrolet Silverado 2500 HD 6.0L No Start VIN: 1GBHC24U61 Thanks to all that replied. It is great to comunicate with others in this trade, who are not just parts hangers. I reinstalled an AC delco pump today and truck is up and running again, hopefully this will be my last time. Wade from colorado & Doug from Wis...	16
	1996 Dodge Stratus ES 2.5L abs VIN: 1B3EJ56H2T Thanks for your help. Customer decided to not proceed with any further diagnostics of the abs system.	3
	1996 Dodge Stratus 2.4L tach VIN: 1B3EJ46X5T Thanks for the 6 replies guys. Most confirmed what I thought. The dash cluster circuit boards are know for failing even though the failure only effected the tach, odometer and shift display, thank you Chrysler techs. The oem circuit board comes seperately and ...	6
	1997 Dodge Caravan 3.0L serpentine belt VIN: 2P4FP2531V Thank you all so much for the excellent information on this request. I have installed a tensioner shield to the car and performend many of the inspections suggested. So far so good! Again thinks for all the time taken. Regards, Dan [...].	24
	1989 Ford Taurus GL 3.0L Excessive Emissions, Poor Idle Quality, Surge, Stall VIN: 1FABP55U5J Several prompt replies to me plea about the f/p reg. But special kudos for making me verify map opperation goes to Clint [...] ( all 3 sent specs!!! ) Carlosgtnby, and David [...]. It turns out that the knowngood map tech #2 tr...	11
	1992 Ford Explorer Eddie Bauer 4.0L No Start VIN: 1FMDU34X6N Many thanks to those who responded. Come to find out the tab that holds the crank gear in place had broken off so the crank would spin but nothing else. Replaced the timing chain and gears, added some oil to the cylinders and it fired right up. Thanks again fo...	12
	1996 Ford Explorer XLT 5.0L no shifts ryan was on the right track i also noticed the different wiring this truck had a used trans installed but when i asked the shop who put it in they assured me that no wiring was changed after looking in to this a little deeper i found that you could change this...	2
	2001 Ford Explorer Sport 4.0L Steering gear or pump VIN: 1FMYU70E11 Thanks to every one that responded. It was air in the system. It took a vacuum pump and a lot of time to get the air out. I have found that if you turn the tires with the engine off it will pull air into the system. It is best to turn the steering wheel slowly...	9
	2001 Ford Escort SE 2.0L Mechanical VIN: 3FAFP13P81 I would like to thank the people that responded to this help request. We have sent the vehicle to the Ford dealer to have the cat converter replaced first, to get rid of that noise. If there is still some other noise, I will then see if the Chrysler service co...	3
	1995 GMC K1500 Suburban 5.7L Poor Idle Quality VIN: 1GFNK16K7S First I would like to thank those who took time to reply to my request. Secondly, I would like to apololgize for not for not doing my job. Basic's, basic's, basic's. I also am going to my Snap-On rep and find out why my 'new' vacuum guage dampens so much. Went...	7
	1995 GMC C3500HD 7.4L timing chain Well, no one got this exactly, but all your responses got me thinking and it finally dawned on me what was wrong. The kicker was that the engine ran smooth, just noisy, before the driver took it. It had bent seven of the eight intake pushrods, and by the time ...	16
	2000 Jeep Wrangler Sport 4.0L blower motor VIN: 1J4FA49S6Y well i would first like to thank everyone who replied especially mark welman for sending me the wiring diagram. This system uses the ground to activate to blower motor the ground goes through the climate selector switch (def, vent, a/c ,heat etc) first and the...	8
	2000 Land Rover Discovery Series II 4.0L trailer hitch VIN: SALTY1244Y Many thanks to John [...] @ Robisonservice and Colin @ Trippinbilly and Jim @ Atlantic British. All stated that there is no wiring schematic fot the box in the hitch since it is an accessory.O well. They also suggested replacing the box with an aftermark...	4
	1992 Lexus SC300 3.0L Power Window VIN: JT8JZ31C5N thanks for all the help, it was the ground in the door jam	5
	1996 Lexus ES300 3.0L Misfire I got several replies. Thank you all, but fact is, #2 has severe exhaust leak down. We got screwed on this. When a customer comes in asking for work, ASK WHY. Never do customer requested work without having some reason for doing it. Cover your asses on any pro... Trouble codes: P0302.	9
	1997 Lexus LS400 4.0L tiltsteeringcolumn VIN: JT8BH28F4V Our client will allow us to furthur diagnose his problem when he is due for his next service. It was here for major maintenance that took in itself 2 days, so, we could not keep the car any longer than a couple more days. Special thanks to Jim & Patrick for th...	3
	1994 Mazda MX-6 2.0L 2nd gear VIN: 1YVGE31COR hi group sorry about the delay in posting, well hooked up break out box and checked all signals, power and grounds to ecm found a poor ground repaired, still had some erratic signals out to trans though for gear command, pulled ecm cover found two black burn m...	5
	1995 Mazda Millenia 2.5L engine VIN: JM1TA221OS Well thanks to the replies that I got on this nightmare.We took a little advice from Keith,Jeff, and Victor.As mentioned the lower hose would go cold,but we never lost heat.So we kinda were hesistent to tear it down for a head gasket.So...Next step we pulled t...	7
	1999 Mazda Protege DX 1.6L belt VIN: JM1BJ2220X after rechecking alternator we got a lazer pulley alignment checker. alignment was good. we decided to replace all of the pulleys and give it a try. it lasted about 1 week. we then put in a new water pump. so far so good. thanks for all the input.	14
	1999 Mazda Protege ES 1.8L Poor Idle Quality, Hesitation, MIL Lamp on VIN: JM1BJ2210X thanks for all the info. had 6 replys. some suggested coils and others cat. problems. all possibly under dealer warranty. sent customer to dealer. hope thy can take care of problem under warranty!! thanks again!! Trouble codes: P0300 (random misfire).	6
	2001 Mazda Protege ES 2.0L Poor Idle Quality, MIL Lamp on VIN: JM1BJ22581 thank you for responses. Car came in & i removed egr valve from under throttle body - electric over mechanical style valve. looked at passegges and all looked clear. examaine valve. electric motor easily unscrews from valve - found that valve has an external s... Trouble codes: P.0.4.	4
	1982 Mercedes-Benz 380SL 3.8L engine VIN: WDBA45A5CB thank you all for the help the problem for the blowing smoke was the valve guids in the cylender heads we had them rebuilt and the car is running great	20
	1998 Mercedes-Benz ML320 3.2L MIL Lamp on VIN: 4JGAB54E9W Thank you all for your thoughtful replies.The recommendations were as follows: Ignition wires - 3 recommendations Bad Cat(s) 2 recommendations Maf sensor 1 recommendation (already done as noted in post fuel pressure reg 1 recommendation (already done as noted ... Trouble codes: P0130 (o2 s b1 s1 volt rise insuffecient), P0300 (random misfire), P0301 (misfire 1), P0302 (misfire 2), P0302 (misfire 2), P0135 (02s b1 s1 heater circuit - pending code only).	8
	1979 Nissan 620 2.0L Excessive Emissions VIN: RN32007636 Thanks to all who helped, especially John [...]. The problem was 2 part, with the Air System being the main problem. The AAP valve (Auxiliary Accelorator Pump) was leaking into the vacuum line adding to the CO and the ASV valve had been dama...	9
	1998 Nissan PATROL SGL 3.0L Starting VIN: JN1TDSY61Z the fix was to send the electronic diesel fuel injection pump for repair in the diesel lab. install the pump and the car is working perfect and the engine is running much better than before. thank you all	11
	1976 Pontiac Firebird 6.6L Excessive Emissions, Poor Idle Quality, Hesitation, Stall First of all thanks to all who responded, It truned out that the cam was bad, #7 exhaust lobe was worn down and the lifter was dished. I have a stock cam and lifters coming so the vacuum should be back to normal. The engine was a 400z Pontiac.	12
	1995 Pontiac Trans Sport 3.1L No Start, Poor Idle Quality, Cuts out, Stall VIN: 1GMDU06DX5 I checked the wires around the starter, high tension wires behind alternator,set the timing, but it did not make any difference. Customer said he is going to take the van to the dealers. I would like to thank those people who sent me the E mail to fix the prob... Trouble codes: 43 (o2 sensor rich).	7
	2000 Pontiac Grand Prix GT 3.8L Poor Fuel Economy VIN: 1G2WP52K7Y Thanks for all the replies and the amazing speed of IATN members. I am convinced now that any claims from the dealer or car sales people regarding 30 MPG plus mileage attained with this engine are 99% B.S. The car works well and has plenty of power, so as the ...	13
	1999 Porsche Boxster 2.5L electric windows VIN: WP0CA2988X it happen to be micro switch on top of windshield,jeff from california was right	5
	1990 Saab 900 Turbo 2.0L Crank Pulley VIN: YS3AL75L6L Thanks to all the help I received and the talk through I did this job well and customer's car is fixed. I probably would have taken me twice as long without the tips and techniques I received. I would have gotten stuck and taken wrong turns. It gave me the con...	31
	1992 Saab 9000 CD Turbo 2.3L Hesitation VIN: YS3CL48M2N Thanks to all who replied. They were right on the money. The impeller in the turbo was indeed seized. Thanks again.	9
	1996 Saab 900 SE Turbo 2.0L Alignment VIN: YS3DF75N6T sorry for the delay. Had family emergency in Boston, just returned. I have not repaired this saab. Believe problem to be in upper strut mount. Customer is scheduled for later this week. Will post results as soon as finished. Thanks for all the help. COWMAN	6
	2001 Saab 9-3 2.0L No Start, Stall VIN: YS3DD58H7Y found back feeding in bus terminals threw wiring harness in left rear of vehicle under carpet.	6
	1999 Subaru Legacy Limited 30th Anniversary 2.5L engine VIN: 4S3BG6857X this one proved to be a big lesson. we received 8 replies. 3 of them seem to be right on the money. as it turns out in the Subaru End Wrench Fall 2003 issue there is an article that states the engine noise is normal and is attributed to an 'improved' engine de...	9

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