Automotive Technicians Technical Discussion and Fixes for Jun 28, 2004

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	Help Request	Answers
	1983 BMW 733i 3.2L No Start, Cuts out VIN: WBAFF740CD hi bmw tech s i have one here that wontstart at times / cuts out and has been to way too many shade tree mech now that it is not [...] at all i am seeing 3 .0 ac volts at speed transmitter and .3 ac at ref transmitter what should i be seeing ? they both sh...	View
	1995 Buick LeSabre Custom 3.8L Cuts out VIN: 1G4CW52K65 Customer complains of very intermittent cutting out. Vehicle will cut out as if the key was turned off then pick back up. It will only actually die very seldom. I have replaced above listed parts as an educated guess.(i have not had the vehicle act up while I ...	View
	1988 Chevrolet Camaro 5.0L MIL Lamp on, CODE 32 STORED VIN: 1G1FP31EXJ fellow tech this one seemed cut& dry to repair-check engine light comes on while cruising @ highways speeds-code 32 egr system fault stored-replaced egr valve\egr solenoid with oem\cleaned egr passages & then ecm & prom w\ac delco unit.followed flow chart & al... Trouble codes: 32 (egr system fault)	View
	1996 Chevrolet Camaro Z28 5.7L Surge VIN: 2G1FP32P9T this car under light axcel will stumble like a miss changed plugs & wires cleaned fuel iduction rail with no responce the car cold will run perfect for about 5 min then stumble under light axcel under heavy load it runs fine only when it is under light load is...	View
	1996 Chevrolet K3500 7.4L Brake pressure VIN: 1GBJK34J5T Have an info. request from the Chev. truck techs.. We are set up for 'All' Ford here...Thanks... We have a 96 3500 series 4x4 dually flatbed in our fleet that was on a job and lost it's brake peddle.. 'All' the way to the floor (allthough 'stuck', still had l...	View
	1996 Chevrolet Express 3500 5.7L Stall VIN: 236G790W26 vehicle came in with a stalling problem cold or hot, sometimes will idle for 1 or 2 minutes then stall out. if put in gear will stall imediatley. have checked injectors, plugs, cap,rotor, wires,grounds and connectors at ecm but still have the stalling problem,...	View
	1999 Chevrolet Corvette 5.7L dic VIN: 1G1YY22GOX Hello, this Corvette has an intermittent "resetting" of the Driver's Information Center. The customer only likes to monitor the Average Fuel Economy, and what happens periodically when she starts the car, instead of the Average Fuel Economy being displayed (s...	View
	2002 Chrysler Neon 2.0L feels like rev limit VIN: 1B3ES56C72 Thanks for any help in advance!!! The problem is this noen runs great up to 3700 rpms, after 3700 it feels like a rev limiter comes in, it does it hot,cold, all the time. We were told that this motor is known for broken cam pully alignment dowels and cracked c...	View
	1994 Dodge Caravan 3.0L Hesitation, Surge VIN: 2B4GH2531R This van hesitates when you try to take off in the morning. It started four weeks ago. Even riding down the road after warm-up you still feel a surge. The readings looked normal on the scan tool, and the fuel pressure was normal. I replaced the MAP sensor beca...	View
	1998 Dodge Durango 5.2L Poor Idle Quality, MIL Lamp on VIN: 1B4HS28YXW Vehicle came in with all codes but P0303 stored, P0303 is the only one set after clearing codes and running. Engine will miss at idle at times, misfire counter shows miss on #3 and some on #1&4. seems to be slightly better when warm. Injector codes indicate el... Trouble codes: P0300 (Random Misfire), P0201 (injector 1 ckt), P0203 (injector 3 ckt), P0205 (injector 5 ckt), P0301 (cylinder 1 misfire), P0303 (cylinder 3 misfire)	View
	1991 Ford Ranger Custom 2.3L Fuel Gauge, Temp Gauge and Tachometer VIN: 1FTCR10A5M I'm a Jeep tech needing information on this Ranger. Son just purchased truck. Fuel Gauge, Temp Gauge and Tachometer are not working. Speedometer, Oil Pressure and Amp Gauge are working. Exchanged complete cluster with used unit, same gauges still not working. ...	View
	1994 Ford F-150 XL 4.9L Hesitation, Surge, Cuts out, Misfire VIN: 1FTDF15Y4R hello. thanks to anyone who has taken the time to read this. this vehicle will run fair when cold. after warmed up, it bucks, misses, and is underpowered on acceleration. especially in lower gears. once it's moving the problem lessens but is still there. the l... Trouble codes: 171 (fuel system at adaptive limits), 172 (lean condition bank 1)	View
	1995 Ford F-150 Special 4.9L Ignition Coil VIN: 1F1DF15Y0S This is for the Ford Tech's A friend of mine was unable to scan for DTC with Matco Enhanced Scanner (MD9640B)Scan tool reads"Need to plug Scanner into DLC connector". So he went ahead and replaced the ignition coil and ignition module. (Still no Spark" My acce...	View
	1997 Ford F Super Duty 7.3L Poor Idle Quality VIN: 1FDLF47F7V i have exhausted all of my options on this thing, and any help would be greatly appreciated. after injector replacement the vehicle had a rough idle and failed #3 cylinder on contribution test. replaced #3 injector again with service install part. test drove ... Trouble codes: P0269, P0275	View
	1998 Ford Explorer Sport 4.0L a/c heater controls VIN: 1FMYU22E2W I have a problem with the a/c system where the heater overrides the a/c except when on max a/c. The heater control valve kicks in when you switch the valve to regular a/c. The hot-cold switch does not work anything at all. I'm a foreign car guy & any help from...	View
	2000 Ford Explorer XLT 4.0L Poor Idle Quality, Cuts out, MIL Lamp on VIN: 1FMZU63X9Y I chk for voltage at the conn. and i have 12.3volts,chk for resistant and have 10. ohms,chk at the computer and have same readings what else can i chk. thanks Trouble codes: P1504, P1507	View
	2000 Ford F-350 Super Duty Lariat 6.8L cylinder head VIN: 1FTSW31S9Y came in with #4 spark plug hole blown out threads and all. is there a special repair procedure for this as the holes are recessed deep in the heads book says 12 hrs-ford says it can be fixed in 4hrs pls advise-tks leon	View
	1991 GMC S15 Jimmy SLE 4.3L temp. gauge VIN: 1GKDT13Z1M this truck as a digital bar graph dash,starts out ok when cold but goes up to overheat. check engine temp. at therm.and found 199 and lower rad hose at 175 with no sign of overheat	View
	1995 Honda Passport LX 3.2L engine VIN: 4S6CYS8V1S This 3.2 motor has a engine knock that will go diminish around 3000 rpm and then will get the worst on deceleration and will continue at idle. I have not seen this vehicle before so I have no history on it. It does appear to be well maintained. I tried to pinp...	View
	1996 Honda Accord LX 2.2L air conditioning VIN: 1HGCD5532T This is a question for you honda techs. This vehicle came in wityh a a/c not cold complaint. Upon inspection the vent temp was 77 degrees and the pressures were low. I located a leak and repaired it and recharged the system. Now the vent temp is cooler but sti...	View
	1996 Jaguar XJ6 4.0L pads/rotors VIN: SAJHX1249T Before I get started with this problem I just want to say that the help I get from this network means more to me than any other given opinion or suggestion. I have been blessed to have this one twisted customer come to me with his Jaguar on approximately Marc...	View
	1989 Jeep Cherokee 4.0L Cooling Systems VIN: 1J4FJ38L53 put on youre p.j.s because i have a bedtime story. LETS START FROM THE BEGINING. THIS VEHICLE INITIALLY CAME IN FOR OVERHEATING PROBLEM AND OVERALL INSPECTION. TECH FOUND EXHAUST MANIFLOD CRACKEDAND WATER PUMP LEAKING (MILEAGE 175025).THERMOSTAT WAS ALSO REPLA...	View
	1995 Jeep Grand Cherokee Limited 5.2L Poor Idle Quality, MIL Lamp on VIN: 1J4GZ78Y7S hey fellow tech's i've got a jeep in here scan tool show's a code 51 02 sensor signal below limit looked at 02 on scan tool look's like it's working at idle , when at 1500 rpm sensor g0's full rich 0.9 volt's heater on the sensor failed so we replaced sensor w... Trouble codes: 51 (o2 sensor signal below limit)	View
	1998 Land Rover Range Rover HSE 4.6L Door Locks VIN: SALPV1447W I am now installing new latch/actuators on the front doors of this Range Rover for the third time in four months. When using the remote unit the rear doors and rear hatch seem to operate correctly even when the front door locks are dead. All connector plugs ar...	View
	1992 Lexus LS400 4.0L MIL Lamp on VIN: 68741FG12D Can some one tell me where the cam sensor is on this car	View
	1995 Mazda 626 DX 2.0L No Start, Stall VIN: 1YVGE22C5S Car will start and run as long as throttle is not touched, once warm, will run perfectly. If you blip the throttle or attempt to drive DURING WARM UP car will die and not restart for half-hour or so.	View
	1993 Mercedes-Benz 300E 3.2L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: WDBEA32E1P Would like to know procedure for making linkage adjustment on throttle actuator. Attempted to find this info through WIS, to no avail. I installed a rebuilt throttle actuator. Sometimes the car runs fine, sometimes stalls over 1300 rpm. Appreciate the input.	View
	1992 Oldsmobile 88 Royale 3.8L pass keyII VIN: 1G3HN53L6N Have customer fed up with PASS KEY II problems.Car will not start.Original key was replaced,and Dealer checked out system for malfunction last year.Replaced anti- theft module at that time.Customer would like to eliminate anti theft system,and operate with con...	View
	1997 Oldsmobile Silhouette GL 3.4L 1-2 Shift Solenoid VIN: 1GHDX03E3V Customer returned this week with light on and no shifting concerns. PO753 1-2 Shift solenoid Short or open. Transmission shifts fine with no delay or slip. Alldata says if pcm does not see 0 volts when applied or 12v when off code will trigger. All solenoids h...	View
	2002 Oldsmobile Aurora 3.5L stability control VIN: 1G3GR64H22 Hi Oldsmobile tech. I need help on this one. The car came in 4 or 5 week ago ride stibility light on. After drving the car 2 or 3 mile Ride stibitity light come on. Ride stibitiy and ride hieght inop. Checked codes B1009. Replaced BCM, ride hieght started work...	View
	1982 Other European Mondial 8 3.0L Take up point VIN: ZFFHDO8C00 This Mondial 8 is an English spec car. In Australia this car has had 2 clutches fitted before the one I've just done. All this in only 71,000km. It came to me with a badly slipping clutch. I found the slave cylinder leaking and somewhat corroded and had it rec...	View
	1999 Plymouth Voyager 3.0L Surge, Cuts out, MIL Lamp on VIN: 2P4FP2532X Hey Chrysler techs, I need your help on this one. I work at a Chevy dealer that used to carry Chrysler products. My dealership sold this van, and we want to satisfy this customer. It will set a code P1496 (5 volt output supply voltage too low). It has a slight... Trouble codes: P1496	View
	1996 Subaru Legacy L 2.2L radiator fans VIN: 4S3BD4358T unplug e.c.m. harness and ground red/blue both fans will work and the green/red will make drivers side fan work.Turn the a/c drivers fan will come on for a second then shut off. With a scaner hook up the engine temp. will go up 240 the fans will not come on	View
	1997 Toyota Camry CE 3.0L Poor Idle Quality VIN: JT2BF22K0V I have this Camry; customer complaints of car would not idle and shut off right after starting. Starts right back up with no problem. But while giving a little gas and driving off car would drive fine. Only happens intermittently. No codes. Could it be idle ai...	View
	1995 Volkswagen Jetta GL 2.0L clutch VIN: 3VWRC81HXS Thanks in advance for your help. Customer came in with clutch pedal on floor. pulled transmisssion, replaced [again] pressure plate on t/o bearing, though both appeared good. Checked for clutchpushrod movement-it moves [...]. no signs of clutch abuse. Rein...	View
	1999 Volkswagen Beetle GL 2.0L power windows VIN: 3VWAC21C7X power windows work with the key on the on position but not with it running. Sets code in the central convienience computer and goes to failsafe,thus the windows wont work. Can clear codes and start car and it resets and windows stop working after about 10 seco...	View
	2001 Volvo V70 X/C 2.4L Surge VIN: YV1SZ58D41 This car surges under load uphill at a constant throtle. It felt as if it has normal power until you feel the turbo boost, then a surge of power building for several seconds then return to normal power. A vacuum-pressure gauge confirms this is the case, on a l...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2004 Acura legend 3.1L Launch carlink 5000e VIN: 1FDAC124RP Thanks for the info on this scan tool. I took the advice from fellow iatn members's advice, which make sense. Why should I try unknown track record, paying so much money? So, I asked my boss to buy snap on scan tool, even expensive. Thanks members.	3
	1993 BMW 525i 2.5L MIL Lamp on VIN: WBAHD6318P Well, I'm not going to get to the bottom of this probelm at this time. The owner has not decided what he wants to do. At this time, we put yet another O2 sensor in the car and gave it back to him. I want to thank everyone for offering help. Some of the informa... Trouble codes: 13 (oxygen sensor), 201 (oxygen sensor control).	7
	1998 BMW 528i 2.8L Wipers VIN: WBADD6326W The responses to the help requeast were very helpfull and based on the logic of the circuit and the consensus of the responses we ordered the wiper motor. The customer returned for the repair last week. We replaced the wiper motor being very carefull to match ...	6
	1997 Buick Park Avenue 3.8L temp & fuel gauge VIN: 1G4CW52K4V Thanks to all who helped, the car did not return to my shop for repairs, I called the customer and he was not going to try to fix this intermittent problem.	4
	2000 Buick Regal LS 3.8L air bag light VIN: 2G4WB55K6Y well, to tell you the truth i completley forgot about this one. we went ahead and sent this vehicle to a dealer for repair. they found a wiring problem under the carpet. the customer was happy and all ended up o.k. thanks to all who replied.	8
	1994 Cadillac DeVille 4.9L struts VIN: 1G6KD52B8R Hey guys, THANKS for the help. The ride control module is located behind the rear seat. Accessable by removing the panel inside the trunk. Module is located on the right side. I was also able to get wiring circuits and pin numbers from Alldata. I can provide t...	5
	1997 Cadillac Seville SLS 4.6L Unknown VIN: 1G6KS52Y8V I was not able to fix this vehicle as the woman took it on a friday because she needed it over the weekend. On monday she called and told us that she went with her sister car shopping and ended up uying a new car herself and traded in the Cadi. I had a few res...	7
	1988 Chevrolet Suburban R20 5.7L Excessive Emissions, Poor Idle Quality, Cuts out, Stall Sorry this took so long but the boss put this one on the back burner,Thanks for all the replies. I switch out the T- body with another one same thing, I put a new prom and a mem-cal/problem solved SORRY again for taking so long,THANK YOU agian	14
	1991 Chevrolet Lumina Z34 3.4L engine VIN: 2G1WT14X7M Thanks Joe [...]	18
	1994 Chevrolet K1500 Cheyenne 5.7L Burns Oil VIN: 1GCEK19K7R Sorry for the delay on this reply. I was waiting for the customer to bring the car back in and it never happened. Most of the reply's were related to the intake gaskets being bad. The customer lives about 60 miles from me and decided to just have a friend put ...	19
	2003 Chevrolet Silverado 2500 6.0L speedometer VIN: 1GCHK29U53 We still haven't seen this pickup back to condemn the cluster. He won't slow down long enough to give us access. Cluster is still acting up (is constant now). Got 3 responses; 2 said to replace the entire cluster, one had had multiple problems similar to this....	3
	1993 Dodge Dakota 3.9L No Start VIN: 1B7GL23X7P Pat, Richard, Edmond, and Wally hit the nail on the head with their suggestions about wiring on the left fenderwell near the fuse/relay box. This wiring runs from the box near the battery across the fenderwell, separates to go into the cab and then also along ...	7
	1998 Dodge Grand Caravan SE 3.3L serpentine belt VIN: 1B4GP44G9W Thanks to all who offered help on this problem. Terry,Grant and Jerry all suggested that the power steering pump pulley was misaligned. Thanks guys, turns out the pulley was set in to deep wearing the outer edge of the belt. I pulled the pulley out a little,re...	11
	1995 Ford F-150 Eddie Bauer 4.9L Hesitation, Cuts out, Stall VIN: 1FTEF15Y9S Thanks to all that replyed. The fix was to replace the (PSOM)programable speedometer. Was abel to get from Ford, as remanufactured unit, they needed Vin# and current miles on odometer reading so that the re-man unit could be programed and have the correct mile...	15
	1996 Ford Windstar GL 3.8L MIL Lamp on VIN: 2FMDAS140T I would like to thank everyone for their help. This Windstar had multiple problems. 1. Egr ports were clogged. I removed the upper intake, cleaned ports and replaced gaskets. That got rid of the egr code. 2. I had a miss fire on Cyl #4. I replaced the platinmu... Trouble codes: P0304 (Cyl 4 miss fire), P0171 (Bank 1 lean), P0172 (Bank 2 lean), P1000 (Monitor Cycle not complete).	22
	1997 Ford Escort LX 2.0L 3-4 shift VIN: 1FALP13P2V This car has not come back for us to work on. But we [...] replies with good information. Thanks to those who took time to read post and repliy back with good info.	3
	1997 Ford F-150 4.2L no# 24 maxi fuse thanks mike from texas and brad from vermont, unplugged o2 sensors and found short went away. truck started and was fine. sold customer new o2's and off it went. thanks for all the replies, i checked them all.	7
	1997 Ford E-150 Econoline 5.4L air delivery VIN: 1FDEE14L8V yes its fixed, i found only one vac tank (under the right hand sideframe rail under vehicle. also under the vehicle was the problem, on this conversion van the line that they used for the rear hot water shut off (when ac is on)and had somehow connected into th...	17
	1998 Ford Taurus SE Comfort 3.0L radio ac VIN: 1FAFP53S5W we tried disconnecting range sensor , rack sensors , we replaced range sensor - fnnally ordered radio unit from radio shop that rebuilds these . everything worked fine except display lights would not come on unless you turned on headlights . we ordered one fro...	12
	2000 Ford Focus ZTS 2.0L codes limp mode VIN: 1FAFP3836Y i would like to say thanks to shawn from michigan who was right on the money on this one.. what i found was after removing valve body there was a broken bolt in the 2/4 servo cover that someone had previously tryed to repair, thus 2/4 servo plate not sitting f...	3
	1997 GMC Jimmy SL 4.3L serpentine belt VIN: 1GKDT13W5V Hello everyone. Sorry about getting back so late with this one. The customer went away for a week, but we were able to silence his Jimmy. We received numerous good replies: -a/c pressures too high, tightening up compressor, ripping belts -bad tensioner (too ...	26
	2000 Honda Civic DX 1.6L MIL Lamp on VIN: 1HGEJ612XY The Powertrain Control Module was not closeing the evap bypass solenoid all the way to ground.I had a floating 3.5 volts on the gound circuit, all the time with koeo. the customer declined any additional repairs. Trouble codes: P1457.	8
	1990 Jaguar XJ6 Sovereign 4.0L starter VIN: SAJHY1746L i replaced ignition switch problem is still the same ther is a white wire with orange trace that supplies power to ignition when key is turned to on position power drops out in this circuit and starter begins to crank and stater will continue to crank even aft...	4
	1999 Jeep Grand Cherokee Laredo 4.0L door check straps thank you for all the replies. i recieved lots of different suggestions from white grease to replacing them.this is on my own vehicle and with the cost at 40+ each and my shop account well into the triple digits i thought somebody had a fix to get me out for f...	6
	2000 Kia Rio 1.5L Compresser/fan control VIN: KNADC24321 This turned out to be a one-off problem due to previous accident damage to the front corner of the vehicle which had broken wires in the harness where it leaves the fuse box and passes through the inner guard. Thanks to all who took the time to read the post a...	1
	1978 Lincoln Continental 6.6L Automatic head lights VIN: 9Y89S61669 Thanks to every one - we got three good replies on this old boat. John [...] had just what we needed - wiring diagrams - that he scanned and e-mailed right over to us. All this customer wanted was the high and low beams to work normally with the foot switch an...	3
	1995 Lincoln Continental Diamond Anniversary 4.6L air ride control VIN: 1LNLM97V4S Thank you all 16 member that took time out of there busy schedule to respond to my help request. Customer requested that if any way i could do a conversion on the air ride system this is what she wanted. The customer new she was facing at least one front air s...	16
	1991 Mercedes-Benz 500SL 5.0L key tumbler VIN: WDBFA66E1M Ok well I got 9 replies on this post and I just want to thank every one of you who took the time to email me.The information was very helpful since we usually do not work on european vehicles.Our shop has mitchell on demand but was disapointed on the lack of i...	10
	1986 Nissan 200SX XE 2.0L Excessive Emissions, No Start, Poor Idle Quality, Surge, Stall, Misfire, Poor Fuel Economy VIN: JN1PS26S8G I believe the ECM is bad. The vehicle went into a no start with spark but no injector pulse. Pulled ECM down to test signals and marked on ECM was 84-85 only and the car is a 86. I went ahead and tested my powers, grounds, inputs, and outputs and decided ECM w...	3
	2001 Oldsmobile Silhouette Premiere 3.4L Poor Idle Quality, High Idle VIN: 1GHDX23E61 Although our TPS readings never dropped below .53 volts on the scanner, the TPS was the culprit. What happens is the voltage drops faster and lower than the scan tools ability to read it. The voltage was dropping below the voltage indicated causing the ECM to ...	3
	1972 Other European Corniche 6.75L Brakes VIN: CRA12025RR Thanks to everyone who sent help messages. Mainly they inspired confidence to get a realistic quote for repairs. We quoted front and rear brake hoses, rear caliper clean and reseal, rear brake pads and handbrake pads, rear rotors and rear wheel bearings and se...	9
	1996 Plymouth Neon High Line 2.0L Cuts out, Stall, MIL Lamp on VIN: 1P3ES47C2T Thanks to all that replied. I ended finding a crack in the crank sensor and oil soaked wires at the crank sensor harness on the rear of the engine. I hooked a scope up to the sensor and the patern was good until I gave the harness a little tug. Thanks again. Trouble codes: 43 (Ignition coil 1 primary circuit).	6
	1993 Toyota Pickup DLX 2.4L engine temp VIN: 4TARN01P3P Thanks for the replies---some good suggestions, but my customer has not yet even returned to see what i found out even after repeated phone calls trying to contact him. I forwarded the help mails to him in hope that he may at least try to fix this himself an...	10
	1997 Volkswagen Jetta GL 2.0L Reverse VIN: 3VWSL81H6V Hello everyone and thanks for taking the time to respond to my request. The general consensus is that the failure of the reverse idler gear is due to abuse or at least poor driving habits by the customer. It may be agrivated by the fact that this part is very ...	11
	2000 Volkswagen Beetle GL 1.8L timing belt VIN: 3VWDD21COY Replacing the tensioner corrected the rattle noise. The old tensioner was easier than most to compress, I didn't need a vise, just a hard steady push down. Bill,Andreas,and Ned were right on! Thanks guys! Do not use the roller part number 06B-109-244 $46 lis...	6

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