Automotive Technicians Technical Discussion and Fixes for Aug 10, 2007

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Open Help Requests for All Makes and Models

	Help Request	Answers
	2000 Audi S4 2.7L Out side temp VIN: WAUDD68D0Y Any help on this one woul be greatly appreciated. Outside temp on instrument cluster reads about 40deg cooler than actual and will drop to negative numbers intermittently. I have replaced the outside temp. sensor and air inlet temp. sensor with no change. I ha...	View
	1995 BMW 540i 4.0L quality of drive VIN: WBAHE6321S Transmission briefly hiccups, as though it's thinking of downshifting, maybe every 10 seconds at highway speed. Engine load can be steady speed, slight decel or slight accel. TCM had fault 12 (mode selector switch) but trans exhibits same behavior without the ...	View
	1999 BMW 323i 2.5L Cylinder Head VIN: WBAAM3332X Hello all, We work on many BMWs, but I have never encountered this problem. The vehicle has an exhaust leak from the back of the cylinder head. Close inspection reveals a hole in the back of the cylinder head that looks like it may have had a soft plug in it ...	View
	2001 BMW 530i 3.0L unknown VIN: WBADT61081 I not very experienced with auto transmissions...Please help. This is a very clean and low mileage 530i. Transmission (A5S 325Z) was removed in order to change engine rear oil seal. After re-installing trans it is going to limp home mode because there is a l...	View
	2001 BMW M3 3.2L MIL Lamp on VIN: 3411EX2014 Hello bmw guru. this M54 is giving me some trouble. when it's on load, on hiway let.s say, in 4th speed at around 6000rpm, sudenly the engine come in safemode, with a code 129 for cat protection. the 2 other code (174 and 175) will also code. i have also a cod... Trouble codes: 129 (cat protection), 174 (fuel system diagnosis bank 1), 175 (fuel system diagnosis bank 2)	View
	1998 Cadillac DeVille 4.6L MIL Lamp on VIN: 1G6KD54Y4W Evening gentlemen and ladies. I have an 1998 cadillac deville that keeps throwing a Maf sensor code (P0101). The problem is how inconsistant the problem occurs, approximitly once in fifty miles. I have looked at freeze frame and tried to duplicate the problem,... Trouble codes: P0101 (maf out of range)	View
	1997 Chevrolet K1500 5.0L Misfire VIN: 1GCEK14M1V Truck came in running rough with CEL flashing. Missfire data indicated missfires on cylinder 7 only. Checked for vacuum leak with propane, none found. Checked resistance of plug wire on affected cylinder 1000 ohms. Swapped plugs on cylinders 5 and 7, miss stay... Trouble codes: P0300 (Random or multiple cylinder missfire)	View
	1998 Chevrolet C1500 Cheyenne 4.3L Hesitation, Cuts out, MIL Lamp on VIN: 1GCEC14WOW this problem started suddenly i was operating the vehicle at the time it occured. the truck was running great stopped at the 7/11 came out and the vehicle had no power under a load. in park it will accelerate fine once in gear or if you turn the steering it cu... Trouble codes: P1345, U1041, U1192	View
	1999 Chevrolet S10 2.2L MIL Lamp on VIN: 1GCCS1447X This truck Came in with a p0452 so i watched the sensor while on a test drive and it would read vacuum in the tank when purge was active. The longer i drove the vacuum went away even though the purge was still active. And it eventuall rose to the point it had ... Trouble codes: P0452	View
	2004 Chevrolet Silverado 1500 5.3L system pressure VIN: 2GCEK19T54 Hi everyone, This is my truck. Under a warranty, but I would like some input when I bring it to the dealer. Start the vehicle up, put on the air, warm, 70lbs on the low side, 475lbs on the high side. Shut down the a/c, put it back on, two or three times, then...	View
	1995 Chrysler Cirrus LX 2.5L Poor Idle Quality, Cuts out, Misfire VIN: 1C3EJ56H4S What inputs could cause a double fire of the #3 and #5 injectors causing a 10psi drop in fuel pressure and a engine miss when it happens. I have read much on this engine and see all the problems with them. Are there any out there who have run into this problem...	View
	2000 Chrysler Grand Voyager 3.3L idle speed VIN: 2C4GJ24R1Y Good afternoon , I have a chry grand voyager that runs with a misfire at idle only.This car came in on A tow truck not running at all.I put a fuel pump assembly in for a no start no fuel pressure diag. Once the van started up and ran it ran with a missfire.The...	View
	2001 Chrysler Voyager 3.3L fuel gauge VIN: 2B4GP54L71 Van is a conversion for handicap accesible and her only vehicle she can get in. It sputtered and died going down the road, It was towed in. I got in and it started right up and I drove it around, and then I hooked up a fuel gauge and it was at 55psi and I let ...	View
	2004 Chrysler PT Cruiser Limited 2.4L no crank VIN: 3C8EY68B94 starter relay does not get ground from PCM. When proper pin is grounded... starter cranks but no start. Modus shows shifter in neutral. Pcm comunicates fine.	View
	1999 Dodge Durango 5.2L MIL Lamp on VIN: 1B4HS280Y7 vehicle came in with two different complaints, first was chk engine light, and would not idle so we ck iac motor and wiring to it, we replaced the iac motor which now it idles perfectly, but about every 12th time you start the vehicle it sets the p0505 code it... Trouble codes: P0505	View
	2000 Ford Escort ZX2 2.0L Misfire, MIL Lamp on VIN: 3FAKP1138Y This car came in for a tuneup. He had driven it for about an hour and it was bucking/jerking on acceleration, but not like a single cylinder misfire. I took him home while this was happening, but the next day when we had time to work on it, it was running go... Trouble codes: P0301 (Misfire detected cylinder 1), P0302 (Misfire detected cylinder 2), P0303 (Misfire detected cylinder 3), P0304 (Misfire detected cylinder 4)	View
	2001 Ford Windstar SEL 3.8L No Start VIN: 2FMZA53401 hi everyone i have this 01 windstar with a no start. it dies or would not start at random for customer he pull the codes an found a ckps code so he change that an powersteering pump be cause it was leaking oil on the ckps. with no results it got to the place i...	View
	2005 Ford Expedition Limited 5.4L inst. cluster, radio, ign. system VIN: 1FMPU19525 This truck came in no crank no power to radio inst. cluster basically power to ign. switch is dead. Found fuse # 102 30 amp blown and replaced with 30 amp fuse and every thing came on started truck and ran for about 20 seconds and died no power again. Saw some...	View
	1998 Honda Passport EX 3.2L abs VIN: 4S6CM58W4W this passport/rodeo has abs codes 41-46 and 35. most all codes are iso and dump circuits. the flow charts are a joke. it says replace hydralic unit and retest or for the code 35 replace coil intergrated module and retest. i think i need the elec/hyd unit on th...	View
	2000 Jeep Grand Cherokee Laredo 4.7L Radiator VIN: 1J4GW48N5Y This vehicle came in March with a radiator leak, Back in June with a radiator leak and now again. It seems the center of the core is being eaten away by elecrrolysis. I am getting over a half of volt in the coolant but not sure where from. I have shut down all...	View
	2005 Jeep Grand Cherokee Laredo 3.7L No Start VIN: 1J4GR48K35 This Jeep (It's a Jeep Thing alright...) has been giving the owner problems re-starting after a hot-soak on an intermittent basis. No external forces or circumstances seem to be direct contributors outside of the fact that it sometimes happens after the engine...	View
	2004 Kia Optima LX 2.4L Timming Belt Markings VIN: KNAGD12634 Looking for timming procedure on T/Belt and balancer belt	View
	1997 Land Rover Discovery SD 4.0L Hesitation, Surge, Stall VIN: SALJY1248V Help, Land Rover techs. This one has been an on going problem for a while. It started out than while cruising, it would develop a heavy surge at about 50 mph while you lightly tipped in the throttle. While looking at scan data you would see the MPH pid flucua...	View
	2000 Lincoln Navigator 5.4L ride control VIN: 5LMFU28A9Y i have this lincon navigator this is the 3rd air suspension [...] the problem is that the air dryer bottle is blowen out the end with the 2 hose i check every thing that i could think of now i need help than you guys	View
	1999 Mazda Miata 10th Anniversary 1.8L Poor Idle Quality VIN: JM1NB3535X Customer states the engine lacks power during acceleration. Hooked up Modis. No codes found. Feels like a restricted exhaust or retarded ignition timing. Checked the exhaust back pressure. Back pressure approx 2-3 psi. This vehicle is distributor-less. Check t...	View
	2000 Mazda Protege ES 1.8L No affect VIN: JM1BJ2717Y Hello there. This is the first time I haven't been able to find my problem in the archives. I have a mazda here with a whistling noise in the engine bay. It seems to happen only at idle went the engine is cold and then around 2000RPM when the car warms up. The...	View
	2002 Mazda B4000 4.0L ignition switch VIN: 4F4ZR47E72 My latest issue is with this 2002 Mazda B-4000 (smae as a ford ranger) and I thank everyone ahead of time for your input When removing the igniton key in this vehicle, the lock cylinder becomes hard to turn and you can see the shift lever move a bit. I took th...	View
	1991 Mercedes-Benz 500SL 5.0L Soft Top VIN: WDBFA66E2M Need to know which pin in the diagnostic connector to attach my pulse counter to in order to read the code(s) stored for the operation of the top. Thanks, Matt---	View
	2001 Mercedes-Benz C320 3.2L bas VIN: WDBRF64J81 Hello Group, This is an information request... I have an 2001 c320, the stop light switch for this car is not under the dash. It is located in the brake booster. Does anyone know if you can buy this switch seperate, and if so what is the part number. The deale...	View
	2003 Mercedes-Benz ML500 5.0L climate control VIN: 4JGAB75E93 a/c suddenly stops & has code B1105 according to customer we could not duplicate problem ran car for a while & switched to heat & after 10 minutes still no heat	View
	2003 Mercury Grand Marquis LS 4.6L No Start VIN: 2MEHM75W93 brought vech in shop no start rapid flashing security light no pluse have fuel pressure. cannot scan when key is turn on scanner blinks off and on flashing check engine light scanner will not communicate	View
	1991 Mitsubishi 3000GT SL 3.0L engine VIN: JA3XD64B1M Hi, I am wondering if anyone in the Mass area knows where I can locate an engine for this 91 Mitsubishi 3000 GT, non turbo. Also has automatic transmisssion. I would like a used engine. Thank you, Dave [...]	View
	1978 Nissan 280Z 2.8L No Start VIN: H1830-4592 This car came in on the hook with no start...We narrowed it down to the Mass Air Flow sensor. We replaced it with a remanufactured MAF and did a major tune up...The car left and was then towed in the following day with a no start condition again. We found a br...	View
	1995 Nissan Maxima SE 3.0L Poor Idle Quality, Stall VIN: 1JNCA21D2S Okay folks, I've goot a good one here. This older Maxima has been exhibiting an occasional stall-out when coming to a stop (doesn't always do it) and will re-start without a problem. Sometimes on re-start the engine will sputter briefly, then run fine until th...	View
	1999 Nissan Quest GLE 3.3L brake caliper VIN: 4N2XN11TXX vehicle came in with the left front brake caliper locked up, cracked bleeder screw and brake caliper released. replace drivers front brake caliper and hose, the brake caliper still locks up, crack bleeder screw and caliper will release. When the bleeder screw ...	View
	1996 Oldsmobile 98 Regency Elite 3.8L cruise control VIN: 1G3CX52KXT the car will disengage the cruise when taking a sweeping left at high way speeds. we did this with the traction control of and on. no diff. the car will randomly display the traction system active in the display. at speed going straight. the system will dsngag...	View
	1984 Other European 400I 4.8L fuel pump VIN: ZFFEB07B00 We are looking for a wiring diagram for this vehical for the fuel pumps. When cranking the fuel pumps will not run at times, but after cranking four to five times they will and vehical starts and runs, and some times it will start on the first try. Hope someon...	View
	1990 Other European S Spur II 6.75L Low Fuel Lamp VIN: SCAZN02D0L Hey Guys, We have a problem with the LOW Fuel Warning Lamp on this car. It stays on regardless of fuel level. Fuel Gauge works normaly, Warning lamp circuit reads the same signal as gauge. There are only 2 wires at level sender. Someone told me this needs to b...	View
	2000 Pontiac Grand Am SE 3.4L ignition switch VIN: 1G2NG52E2Y I snapped the plastic cover off over the ignition switch and the took off the trim around the radio to change the flasher unit. After i put the flasher in and the plastic back together and the that went fairly easy, the key would not turn. I messed with the ke...	View
	2002 Pontiac Grand Am SE 3.4L MIL Lamp on Hey there ladies and gents, I have a grand am here that has an "ERLS" fuse blown and causing these codes, we identified the rubbed thru harness leading to the O2 sensor causing the short so the vehicle is fixed. My question is does anyone know what "ERLS" is t... Trouble codes: P0141, P0443, P0446	View
	2002 Saturn L200 2.2L ignition lock and power windows VIN: 1G8JU54F22 car came in because the key would not turn back all the way to pull out. if you slammed the shifter into park, the lock would turn back to get the key out. after talking with the local saturn dealer, we replaced the lock cylinder housing and relearned the pass...	View
	1996 Toyota Avalon XL 3.0L engine VIN: 4T1BF12B8T Vehicle came in overheating with numerous leaks. Customer had recently purchased vehicle. Obviously had no maintence performed by previous owner. all leaks have been repaired and will hold pressure without droping for hours. Will only overheat occasionally now...	View
	1997 Toyota 4Runner SR5 3.4L rear main seal VIN: JT3HN86R8V Hello Toyota Tech's got a stupid one for ya guy's. This is on my personal vehicle in which i replaced the clutch on around four month's ago due to a hot spotted flywheel typicle clutch chatter and while apart i replaced the rear main seal, now i know everyone ...	View
	1999 Volkswagen Beetle GL 2.0L under hood VIN: 3VWBB61C3W Hello out there and thanks in advance. This one came leaking coolant out the timing cover. Replaced T-belt, water pump and hoses. Performed double check after some miles and found no leaks. We were not happy with the after market lower radiator hose so I repla...	View
	2006 Volkswagen Jetta TDI 1.9L Surge VIN: 3VWST71K76 Need help with recall / TSB number and time to replace EGR valve and cooler assembly. All{no}data e-mailed us information that shows a different style EGR and cooler assembly, also shows 1.8 hours to replace assembly [not correct]. Thanks, Andreas	View
	1998 Volvo S70 GLT 2.4L MIL Lamp on VIN: YV1LS5671W The vehicle when driven less than 10 miles will have the misfire codes pending. On the next drive cycle, trouble codes will be present. WE have done a major tune up with Bosch parts, including plugs, wires, cap and rotor. Also the fuel injectors have been serv... Trouble codes: P0300, P0302 (cyl 2 misfire), P0303, P0305	View
	1998 Volvo V70 2.4L no communication VIN: YV1LW5576W have 98 v70, will not communicate with any scan tool, have checked fuse , does not have power at red wire , already checked to make sure terminals in tact. have tried three different scan tools. has anyone run into obd2 connector wihtout power?	View
	1999 Volvo V70 X/C AWD 2.4L shift solonoid b VIN: YV1LZ56D3X this volvo gives us a shift solonoid b code when the up arrow and the check engine light come on it then goes into the limp mode and its not a lot of fun to drive. we flushed the trans fluid and used some volvo synthetic trans fluid to try to clean up the soli...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1993 BMW 740iL 4.0L Electric Window VIN: WBAGD8302P I feel very strong about the problem being in the drivers door because even the manual override would not work to unlock it. The customer picked up the car and was very upset that it was not finished in less than 24hrs and even more upset that I charged 2hrs f...	6
	2001 BMW M5 5.0L Cylinder heads VIN: WBSDE93491 I want to thank all the IATN members who responded with special thanks to Sevan. The info Sevan passed on to our shop was great. Thanks Again, Paul	8
	2001 BMW X5 3.0i 3.0L No Start, MIL Lamp on VIN: WBAFA53511 Thanks for the replies. It was the DME. We messed around with the DSC module alot. We found that with the Baum tool in data screen two of the DSC the CAN would become unstable and set DSC and brake lights on the dash and the tool would drop communication wi... Trouble codes: P0604 (DME 100- self check RAM ROM invalid sum), 145 (EGS- CAN moment reduction), DSC, 118 (status DME internal error).	6
	1997 Buick Park Avenue Ultra 3.8L Stall VIN: 1G4CU5216V LATE YSTERDAY WHEN WE WERE ABOUT TO TRY ANOTHER TEST RIDE WE HAD ALL THE EQUIPMENT HOOKED UP AND THE OLD BUICK DECIDED NOT TO START.WITH OUR LIGHTS IN PLACE WE COULD SEE POWER TO PUMP WAS IN PLACE AND GROUND HAD BEEN VERIFIED BEFORE - 4 OR 5 THUMPS TO BOTTOM O...	14
	1995 Chevrolet K2500 Cheyenne 6.5L Excessive Emissions, Misfire VIN: 1GTGK29F0S Trouble codes: 18 (cam sensor), 19 (crank sensor).	9
	1996 Chevrolet Blazer 4.3L Hesitation, Surge, Poor Fuel Economy, fuel leak VIN: 1GNDT13W1T Here it is. Upon further discussion with the owner we found out he bought the truck days before the trans failed. So we took some advice from some fellow techs here on IATN and started tracing the fuel lines. We pulled the tank and found someone had tried to f...	3
	1997 Chevrolet Malibu 3.1L Low Coolant Light VIN: 1G1NF52M6V	14
	2000 Chevrolet Monte Carlo SS 3.8L No Start VIN: 2G1WX12K6Y Connector at module had corrosion build-up. Cleaned it up and car was fixed. thanks for all the replies I got.	15
	2001 Chevrolet Cavalier Z24 2.4L abs / traction control / brake light VIN: 1G1JF12T11 sorry long response time but Customer has yet to return with car so i can see if any info would help me will repost if customer returns	3
	2001 Chevrolet Malibu LS 3.1L Instrument cluster VIN: 1G1NE52J41 thanks for the responses. According to the wiring diagram the ignition switch was the most likely culprit & getting several responses on this part was reassurance to disassemble. Once switch was removed, found contacts burnt. Replaced switch & vehicle start...	9
	2004 Chevrolet Silverado 2500 HD 6.6L Hesitation, Cuts out VIN: 1GCHK24214 the vac side was within spec. i tested the return flow values ofthe injectors and they were all returning to much fuel when compared to the spec as much as 3 times more. So i changed out all eight injector and the truck runs great and has a ton of power. thank... Trouble codes: P1093 (fuel pressure low while power enrich).	6
	1995 Dodge Neon High Line 2.0L Hesitation, Surge, Cuts out VIN: 1B3ES42C1S Thank you all for helping me get to the bottom of this! Fuel pressure dropped to 10 psi on acceleration and waveform from low amp probe showed pump RPM could not keep up. Replaced fuel pump and all is great!	9
	1999 Dodge Intrepid 2.7L No Start, Poor Idle Quality, Stall, MIL Lamp on VIN: 2R3HD46R2X Thanks guys for all the replies it looks like you were right the chain jumped a tooth but the customer said put it back together and leave the sensor unhooked they were going to trade the car as is. They would not spend the money, they just spent a large sum o... Trouble codes: P0352.	9
	1999 Dodge Grand Caravan SE 3.3L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Poor Fuel Economy VIN: 2B4GP44G9X Thanks for all your help. Customer has decided not to repair and has taken the car. Fuel Pressure is at specifications. The vehicle would works fine when in the warm up phase in Open Loop, but when it kicks into closed loop the vehicle runs like crap and rich...	8
	2001 Dodge Ram 2500 5.9L high side VIN: 3B7KF23671 THE CONDENSOR FIXED IT. THANKS WITH HELP. HAVE A GREAT DAY AND A MERRY CHRISTMAS.	15
	1988 Ford F-250 Custom 7.5L starter VIN: 1FTHX25G9J THANK YOU TO ALL WHO REPLIED. EVERYONE WAS TELLING ME TO CHECK CABLES, AND DO A VOLTAGE DROP TEST. WELL, FOLLOWED THE GROUND CABLE TO THE EXHAUST MANIFOLD. OF COURSE, HEAT CREATING RESISTANCE. REPLACED GROUND CABLE WITH THE ADVISE OF MANY, GROUNDED STRAIGH...	28
	1994 Ford Bronco Eddie Bauer 5.8L Surge VIN: 1FMEU15HXR Thanks for all the help. It ended up being a map sensor. Runs smooth now. Trouble codes: 311 (secondary inj. system).	4
	2001 Ford Explorer XLS 4.0L steering wheel VIN: IFMZU63E72 THanks for all your help!! I guess I should have been more patience. I had the customer pick up the vehicle and after a couple of days all the air came out and the truck drives great!! Thanks again to everyone	29
	2002 Ford Taurus LX 3.0L Alarm VIN: 1FAHP56S32 Special thanks to Allan, Roger, Darren and the other person that offered help...last name did not appear on e-mail. Well I think we fixed this vehicle, we took a little of each of your suggestions and made a permanant ground to the pink/white wire from fron...	4
	2004 Ford F-250 Super Duty Harley-Davidson Edition 6.0L oil system VIN: 1FTNW21PX4 customer declined to repair it due the cost, thanks for all the help	22
	1990 Honda Civic DX 1.5L Surge VIN: 1HGED3646L Thanks for all the info. I suspect that I fixed this vehicle by replacing the EACV in the first place. I was told by an old Honda tech that these engines will surge if held off of idle. So i actually drove the vehicle and could not get it to surge. We returned...	6
	1999 Jeep Cherokee Sport 4.0L air bag ligh VIN: IJ4FF68S5X Thank YOU Paul [...] And Jerry. It is in the center console in the rear of it under the big stack. Iatn is great. Have a great day, and thanks again.	3
	2003 Mazda 6 i 2.3L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1YVFP80C83 Thanks for the help. Alan you were very kind to repond to our questions and take our phone calls. It was only with you help that we were able to repair this vehicle corectley. We found that the timming was off on the vehicle by ordering the mazda special ali...	6
	1999 Mercedes-Benz C280 2.8L running VIN: WDBHA24G0Y first i would like to thank you guys for the help. after putting on the crank sensor the vehicle got worse. after getting your help request i tried the fuel relay. this vehcle has the black relay. had new one in stock replaced. and never failed. put old crank ...	2
	2001 Mercedes-Benz S430 4.3L MIL Lamp on VIN: WDBNG70J71 CUSTOMER NEEDED VEHICLE BACK.AND DID NOT WANT TO CHECK OUT ANY MORE. Trouble codes: P0141 (bank 1 sensor 2 heater ckt).	3
	2001 Mitsubishi Eclipse Spyder GT 3.0L vents VIN: 4A3AE85H31 Finally this thing is outa here!! thanks to the 3 of you that replied. found that there was too much oil in the system. there is still a 3-4 degree difference between driver and pass sides(just the way the airflow in the plenum chamber is designed). I can li...	3
	2003 Porsche 911 GT2 3.6L Glass VIN: WP0AB29903 I was able to get the front lid open when I noticed I could see the handle for the safety catch visible in the panel gap. It had been bent forward, so I pushed it back with a plastic wedge. I drivers window problem was the door latch. The microswitch in the ...	12
	2002 Saab 9-3 SE 2.0L Speed sensor VIN: YS3DF75K72 Thank you all who replied. There was an intermittent open in the sensor wire junction below the rear seat. Replaced wiring for that sensor and all is well.	3
	2000 Toyota Land Cruiser 4.7L Keyless entry VIN: KZJ95-0140 Thanks a million for the help guys. I found the procedure to program the remote on the following website. This is a very useful site and might be of help to anyone in my situation again. Once again many thanks. Paul	3
	1999 Volkswagen Jetta TDI 1.9L No Start, Stall, Poor Fuel Economy, glow plug light on VIN: 3VWRF29M3X thanks to everyone who replied to our problem car we repaired the brake light glow plug light problem first the problem was the brake light switch second we looked at the egr valve and intake manifold carbon was built up pretty heavy still did not make much d... Trouble codes: P0101, P0380.	16

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