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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for May 1, 2007
International Automotive Technicians' Network (iATN) - Members Only
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1995 Buick Century Special 2.2L Hesitation, Surge, Misfire VIN: 1213456789
thank you for your time with this car its a 95 buick with a 2.2 i loose cyl 1&4 on a load no spark it has 2 new coils and new plugs ,wirers and module and pcm and prom from gm i let it idle and they come back
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1995 Cadillac DeVille 4.9L road sensing struts VIN: 1G6KD52B7S
What has to be done to eliminate the check suspension light when front struts are replaced with regular struts,{no electrical connection at struts].A 3wire plug is at each front strut.
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1997 Cadillac Eldorado 4.6L oil pressure light VIN: 1G6EL12Y5V
Car came into my shop, customer requested that we install new oil pressure switch for oil leak. Installed new switch. Oil light is on and IPC indicates "stop engine, low oil pressure" installed 2nd switch, same problem. Don't know if this problem was occuring ...
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1998 Cadillac DeVille d'Elegance 4.6L high beams, windows, radio, fuel door VIN: 1G6KE54Y2W
Caddy techs please help. Only code is for high beam operation.All these systems, windows,high beams, radio were intermittant but I got lucky and they now do not work at all. I can control the low beams but not the high with my Tech 2 the scan data for the high...
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2000 Cadillac Catera 3.0L Cooling Systems VIN: W06UR54R5Y
this car intermittenly overheats. coolant level is ok. test drove 5 miles - ok. had running in stall 1 hour, temp gauge cycled just above and below middle of gauge, with the cycling of fans. test drove again, temp ok. let idle again, and temp gauge pegged with...
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1994 Chevrolet K1500 Cheyenne 6.5L Excessive Emissions, loss of power VIN: 2GCEK19SXX
So I have this 6.5 turbo that likes to cloud everything in sight with thick black smoke. It especially does it under load , but does it also under medium and heavy acceleration. Started off had no fuel pressure (i know fuel pressure has to do with injection ti...
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1996 Chevrolet Caprice Classic 4.3L Hesitation, Cuts out, MIL Lamp on VIN: 1G1B152W1T
help; this caprice came in runs rough warm. feels like missfire. put it on scope in drive under load cly 2-4-6-8 seems to have problem with fire line and spark line on scope when its running rough. on even clyinders from fire line to spark line does not start ... Trouble codes: P0304 (cylinder 4 missfire), P0300 (mutiple missfire)
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2002 Chevrolet Malibu 3.1L security system VIN: 1G1ND52J02
I have 2 different cars with nearly identical symptoms. About once a week,they will (crank, but) not start. Security light flashes. They will set a HISTORY code of B2960. Nothing current.They also have some U codes in history. One set U1016, U1040,U1088, and U...
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2000 Oldsmobile Intrigue GX 3.5L Hesitation, Surge, Cuts out, Misfire VIN: 1G3WH52H9Y
This car idles fine when you accelerate it starts to dog down like clogged cat.checked fuel pressure was fine doesnt drop. checked the egr and on light acceleration it was opening 100% and dogging down dont know if it was normal..i disconnected it and now it a... Trouble codes: P0131, P0137, P0300
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Fixes & Summaries for GM
Fix/Summary Answers
1994 Buick LeSabre Limited 3.8L Battery Drain VIN: 1G4HR52L1R
I dropped the computer down and it had a reman in there . I lucked out called my buddy at the salvage yard and he had a gm one .Put it in and draw went to almost zero. Thank You all for your time and Help.
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2001 Cadillac DeVille 4.6L oil usage VIN: 1G6KD54Y51
Firdt of all i would like to thank all of the 8 guy's that responded to thhhis caddy problem. I pulled the plugs as sugested and poured in a few bottle's of gm top end cleaner and let it soak for about 18 hours so far looks like that problem maybe gone .. I wi...
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1995 Chevrolet Camaro Z28 5.7L asr off light on VIN: 2G1FP32P1S
Thanks everyone for the help. Sometimes you can't see the forest for the trees. Dennis and Steve hit it on the head. A misplaced bulb was the culprit. Found the ABS control module and matched the numbers on Alldata. It was a non-traction control unit. There is...
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1996 Chevrolet K1500 Cheyenne 5.0L Poor Idle Quality, Misfire VIN: 2GCEK19M2T
Well, I have finally finished this major headache. The slight misfire and skewed fuel trims between the banks was due to carbon build up on the #6 intake valve and my fault of not changing the oil. I changed the oil like Michael from Oklahoma suggested and the...
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1996 Chevrolet Cavalier 2.2L Surge, Cuts out VIN: 1G1JC5244T
this car had 2 problems the pcm was hit with a rock it only affected the tps strange.also egr valve was nfg
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1996 Chevrolet Cavalier 2.2L Collision Repair VIN: 1G1JC1248T
Thank you all again for all the helpfull responses. He decided against my advice to install all junkyard parts except for the front sensor. At least he took the advice of replacing all parts both bags and module the clock spring was ok this time. Sorry for the...
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2001 Chevrolet Corvette 5.7L irratic operation VIN: 1G1YY32GX1
Well, this one turned out to be strange. while the vehicle was here the battery constantly went dead with the key on for just a short while. the customer authorized a battery even though he stated he never had issues with it.As soon as the battery was installe...
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2001 Chevrolet Blazer LS 4.3L MIL Lamp on VIN: 1GNDT13W91
Cleaned connections and applied dielectric grease, was able to monitor voltages. All seemed ok customer has had vehicle for a week and all is good. Trouble codes: P0155 (ho2s heater performance bank 2 sensor1).
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2001 Chevrolet Impala 3.4L suspension / steering VIN: 2G1WF52E91
good call guys the car came back today i pulled the right axle shaft and check the inner cup , found water and rust in the tripod replace the half shaft with a new shaft (NOT A REMAN) and that took care of the problem, thanks alot for the Great help I now have...
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2002 Chevrolet Cavalier 2.2L starter
Hey guys thanks for the replies all it needed was a ground
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2003 Chevrolet Silverado 2500 HD 6.6L reverse VIN: 1GCHK29143
thanks for the three repies i got esp robert from oregon. got me tinking analytically again instead of emotionally. what i found was when put in reverse , wiring harness flexed enough to open up an internal break in the wire that was testing good during a stat...
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2003 Chevrolet Cavalier LS 2.2L No Start VIN: 1G1JF52F63
This one's finally fixed. One of the class 2 data wires behind radio was chafed on the frame support to the dash. This is a good one to remember as it seems to be a factory routing problem. The ducting to the dash had to be removed to fix. Thanks for all the h... Trouble codes: U1301, U1302, U1064, P1626, P1631, P1630.
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2004 Chevrolet Silverado 1500 5.3L air outlets VIN: 2GCEC19T24
thanks for all the replies, we borrowed a techii from a friend of mine and it turned out we had 2 problems , low on freon , only about 6 oz. and a bad module. i think i have to have me one of those. thanks again , we have another happy customer
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1998 Pontiac Grand Am SE 3.1L emissions VIN: 1G2NE52M4W
Replaced the Fuel tank pressure sensor on top of the tank and havent seen the vehicle back yet. Thanks for all the responses, Gregg [...]
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2003 Pontiac Sunfire SE 2.2L Starting VIN: 3G2JB12F23
Thanks for all the help.The reason it would not reset the antitheft fully was the power wire that feeds the key switch was almost broke off.When you would try to reset sometimes it would let you go 2 cycles before it would not comunicate.Thanks again to all.Th...
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