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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for February 12, 2005
International Automotive Technicians' Network (iATN) - Members Only
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Open Help Requests for All Makes and Models
Help Request Answers
1991 Chevrolet Astro 4.3L Stall, idle increase, knock VIN: 1GN87HGZ2M
Hi folks, got one that has me stumped. 1991 astro, 4.3. Van came into shop with high idle comlpaint. Upon first inspection found that the TB was covered in carbon deposits, that the idle air passege was badly coked, EGR and PCV passeges pluged up. We also foun...
1999 Chevrolet Venture 3.4L traction control VIN: 1GNDX03E8X
Vehicle runs and drives great but the TCS switch does not illuminate. Low traction light on dash works when you burn off the tires but the TCS light on dash never lights except for bulb test. All Data is not helpful on this system. Can anyone point me in the r...
2001 Chevrolet S10 4.3L ABS Fault VIN: 1GCS19W718
We rebuilt this long block w/ no troubles. Vehicle then had a problem with the ABS Light Triggering a C0237 (Erratic wheel speed). The vehicle's speedo also jumps around when the engine is revved. Viewing with the scantool while revving, the scanner reveals th...
1995 Chrysler Cirrus LX 2.5L heads VIN: 1C3EJ56H7S
Hello All, i've got a moderate problem with this one. one of my mechanincs spun the cams by hand at the wrong time and bent valves on #1 and #4 cylinders. questions to you are: are the heads easier done in the car? do you think piston damage has occured? any p...
1984 Dodge 600 2.6L Excessive Emissions, Poor Idle Quality, Surge, Stall VIN: 1B3BV51G9E
This engine is running lean at idle and off idle. Gas has to start coming out the center venturie, for it to run. When choked the rpms go up. Vac at is only 13" and only goes to 15" with the carb choked. Shouldn't I get a better vac with the choked closed when...
1989 Ford F-250 Custom 5.8L rabs VIN: 1FTHF25H5K
hello every one , my problem is that i cant find this orn/black wire to ground out so i can get codes out of modual , my snap-on mt2500 says it should be located behind glove box ,but i dont see it ,can any one tell me were it might be found .and my mt 2500 fi...
1993 Ford Thunderbird Super Coupe 3.8L Cuts out, Misfire VIN: 1FAPP64RZP
Dear fellow techs: This Super Coupe has been super problems for the owner ever since he has owned it. A big shop in a larger town in the area worked on it 4 times in 2002, and once in 2003; all driveabiltiy problems. It came to me with the complaints that is s... Trouble codes: 341 (octane bar out it is), 176 (O/2 not switching lean), 212 (no tach input to computer), 214 (CID cam sensor fault)
1997 Ford E-150 Econoline 4.2L Excessive Emissions, MIL Lamp on, OBD2 OUTPUT VIN: 1FTEE1421V
this is a fleet van driven daily came in for emissions failure with mil on. i have no power into the obd2 conector and no power from computer. i know my emissions faliure is due to clogged cats, but is their any further tests i can do before i slam in a comput...
2000 Ford Focus Sony Limited Edition 2.0L cooling fans VIN: 1FAFP3433Y
My customer complains of overheating when in traffic only. Gets buried in the red.When moving, the vehicle does fine. I saw this as a classic fan problem. What muddied the waters was her story of being run off the road onto the median in a snow storm in Minne...
1995 Honda Civic EX 1.6L AC compressor VIN: JHNEH9695S
Hello, I put compressor and drier on vehicle 3 months ago and everything worked great. Customer said he was driving one day and AC quit blowing cold. I'm not getting power to compressor. I bypassed relays and system gets power. I replaced pressure switch with ...
1991 Hyundai Excel 1.5L No Start VIN: KMHVF21J4M
Hi All: Had this 91 Excel show up by hook last week. It's been sitting for six months(sure). Has a no start condition. Owners son has been playing with it unsuccessfully. You can tell by the five of six dozen beer cans and bottles in the back seat. We agreed t...
1990 Mazda Miata 1.6L No Start VIN: JM1NA3514L
Went through forums when vehicle would not start third time. Tried fuse to no avail. Any help would be much appreciated.
1991 Mazda 929 3.0L No Start VIN: JM1HC2241M
Vehicle came in as a no start. Scoped the signal`s (G1 &G2 ) at dist. OK. Resistance tests at dist all check out by the info in Mitchell.Coil ohm out bad..replaced . Vehicle started and ran fine. Switched off and vehicle would not restart..Rechecked dist signa... Trouble codes: 01
1994 Pontiac Grand Prix SE 3.4L MIL Lamp on VIN: 1G2WJ12X6R
Trying to make the peices of this puzzle fit. Customer states these 2 symtoms appeared on the same day. 1)Intermittant MIL (1640) WARM engine only. Poor driveability COLD (cts below 40f) engine only. These symtoms don't happen at the same time. Start cold, poo... Trouble codes: 1640 (quad driver a)
1997 Pontiac Grand Am SE 3.1L Poor Idle Quality VIN: M6VC710466
help gm techs the idle runs normal for a while and then idle starts to go up, tps sensor code comes on and replaced sensor, found no help, found the air flow sensor not reading on scanner, will this cause po121 code? tried an other scanner and the same thing, ... Trouble codes: P0121
2000 Pontiac Grand Am GT 3.4L gauges,heater,DRL,windows VIN: 1G2NW52E4Y
Hello fellow techs. Just wondering if anyone has seen this before. My sisters car will sometimes have no gauges, pwr windows, hvac, Drl, or warning lights[ this is just what I have noticed there may be other systems effected]. Also the service vehicle soon lig...
1990 Toyota Camry DLX 2.0L No Start VIN: 4T1SV21E8L
we have no spark, i've tested all of the no spark test diagnostics flow chart, it came down to try another igniter, i've tried 2, one new & one used, still no spark, i tested both power & ground at the computer, circuits tested good. checked both fuses in the ...
1985 Volkswagen Golf 1.8L Poor Idle Quality, Hesitation, Cuts out, Stall, No Start at times VIN: 1VWFAO174F
I drove this car for 30 miles to work on Friday. It had bad hesitation after, it warmed up, when you came to a stop in drive. Idled normally when put into neutral. I replaced the air filter and cleaned the air mesureing plate with a small amount of throttle b...
1986 Volkswagen Vanagon GL 2.1L Excessive Emissions, Poor Idle Quality, Stall, Misfire VIN: VW2YB0258G
The owner of this vehicle can afford a new vehicle but his wife likes this VW Bus and wants it fixed. First, the owner took me for a test drive. For about 3 minutes the vehicle ran great. The vehicle than had a misfire at 2500 RPM's. The key was cycled and the...
2000 Volkswagen Passat GLS 2.8L starter, drs , windows VIN: WVUH23B2YE
Guys,Ladies, I have what appears to be a canbus blockage problem. In adress 36, seatmemory drivers side on my Ross tech vag com I was able to get thes codes 01008 emergency off switch active. 01329 convenience system data bus emergency mode. 01330 central cont...
2000 Volvo S80 T6 2.8L lifters VIN: YV1TS90D2Y
car sounds like a diesel, he was just coming off the interstate and it just started in makeing this sound no real lack of power just a lot of uper end noise.We removed oil cap runing engine not a lot of oil at cam lob. Oil press. is 60 psi at idle. mitchel dos...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1999 BMW 323i 2.5L MIL Lamp on, no increase in rpm VIN: WBAAM333XX
Hello BMW Techs We checked the inputs and outputs to the throttle actuator and the inputs were OK, but the output signal as displayed in the vantage meter was erratic at times indicating the malfunctioning of the throttle actuator, as far as the adaption proce... Trouble codes: P1580, P1510, 01 (ABS no code description), 5 (SRS Firing circuit belt tensionerdriver), 6 (SRS firing circuit belt tensionerpassenger), 16 (SRS driver side belt switch).
1999 Buick Century Custom 3.1L Cooling Systems VIN: 2G4WS52MOX
Hi All, Apparently these 3.1 liters have a problem with the intake gasket leaking. It is a plastic gasket and it will crack and cause a leak from the lower intake. Many said that the new GM gasket it a revised design and won't leak like the origional.I also ne...
1997 Chevrolet Corvette 5.7L instrument panel message VIN: 1G1YY22G0V
Thanks to Douglas from CA who suggested to check TAC module, Steven from Delaware who even offered his phone # and Mark from Maryland who advised to check for proper modules and programming. I checked PCM,BCM, EBCM, TAC-all original, with all of them disconnec...
2000 Chevrolet Silverado 1500 5.3L coolant in the oil VIN: 1GCEK19T8Y
Thanks to all that replied on my coolant in the oil problem. It turned out to be a head gasket on the passanger side. It had a very fine crack in the gasket at the front corner water passage, letting coolant to cross over and enter the area where the lifters a...
1988 Dodge B250 5.2L Hesitation, Surge, Cuts out, Stall VIN: 2B7HB23Y6J
the fix for this van was new fuel injector in the throttle body one was spraying well the other would skip stop then flood replaced with new on all better tanks
2001 Dodge Ram 2500 5.9L low power VIN: 3B7KF23671
THANKS GANG, Ya'll are great!! as stated lift pump was bad , replaced & the truck ran better & the low power occured much less often, but still did it once in awhile. Replaced map sensor and all is well. I think it would see high turbo pressure & retard inject... Trouble codes: P1693 (dtc stored in pcm), P0216 (fuel injection pump failure), P0522 (oil pressure sensor low), P0523 (oil pressure sensor high).
1995 Ford Contour LX 2.0L Poor Idle Quality, Stall VIN: 3FALP663XS
Some folks commented about maybe the valve was being opened too far, possibly not designed to be run full open, making sure the filter in the solenoid was not stopped up, one told me too check the fuel pump, (obviously he did not read the post)one told me to c...
1997 Ford Explorer XLT 5.0L abs motor VIN: IFNDU35P2U
well everyone that said rust under sensors was right on the money thanks to everyone i saved alot of time. i might have spotted it if i had done the work but my more untrained techs replaced them. they just do as they are told sometimes. you all know how hard ...
1997 Ford E-350 Econoline Club Wagon Custom 6.8L cam chains VIN: 1FMHE3158V
took advise of iatn and junked head, aligned with self painted links and problem solved, also found info in tech data learning to use iatn better thank for the help.
2002 Ford Focus Street 2.0L No Start VIN: 1FAHP383X2
thank you for all the replies- Ralph from Alberta was right in saying the muffler was frozen- focus went back to the dealer for there update- thanks again to everyone that tryed to help-
1992 Honda Accord LX 2.2L Surge VIN: 1HGCB7656N
thanks to all who replied!larry nash,david [...] put me on target.all but 1 exhaust valves were too tight.inspected cam timing and that was ok in this instance.high o2 levels were caused by tiny holes in muffler,so b...
1994 Hyundai Elantra GLS 1.8L Poor Idle Quality, no com with computer VIN: KMHJF32MXR
Thanks for the replies. hmaservice.com is a great resource for anyone working on Hyundais. Most thought it was likely to be the ECM, but we didn't get the ok to swap it out. Car runs fine with the computer in control of idle and fuel (passes emmisions), just w...
1992 Lincoln Continental 3.8L Warning Buzzer VIN: 1LNLM9741N
I removed kick plate, and dash panels and cluster. unplugged, found right hand side circuit board was partially unplugged, cleaned up and reinstalled, (also replaced half a dozen blown bulbs) put everything back together, customer states buzzer has not gone of...
1997 Mercedes-Benz E320 3.2L No passing gear acce VIN: WDBJF55F8V
Over half of my replies suggested replacing the MAF. The air flow specs helped. The new MAF solved the popping and lean misfire. I learned to really study the adaptation numbers. The car ran about the same with the old MAF as with the old MAF unplugged.
1996 Pontiac Grand Prix 3.1L Door locks & window motors VIN: 1G2WJ12M7F
Sorry for the long wait. Got busy and forgot to reply. We did a lot of testing on this car and finally found a bad ground. The head of the bolt holding G305 ground point to the floor of the car at the base of the right 'B' pillar had snapped off. We took pictu...
2001 Pontiac Montana 3.4L Accessories VIN: 1GMDX03E51
thanks to the seven replies . I checked the floor pan connector behind the drivers seat for corrosion but it was clean & dry . I took the dealers suggestion & added a bottle of gm#[...] fuel injector cleaner first and the fuel gauge is working properly now ...
1994 Toyota Camry XLE 3.0L Cuts out VIN: 4T1GK13E4R
Greetings fellow technicians! This vehicle is not fixed, but I'm going to close the post. The customer has found a buyer for the car so opted not to purchase a new ECM. It's a very intermittent problem, and the buyer of the vehicle is aware of the problem. ...
1994 Volvo 960 2.9L Mechanical VIN: YV1KS9507R
I had a lot of replies stating that the intermediate shaft bearings neede to be line bored. I took the block into Moline Engine Service a machine shop that has been around forever. They just have one employee now. He measured the bore and it was straight,so th...
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