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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for September 4, 2008
International Automotive Technicians' Network (iATN) - Members Only
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1994 Buick LeSabre Custom 3.8L Cuts out, Stall VIN: 1G4HP52L3R
hello, we are working on a 1994 buick lesabre. the problem is that when cold the car will start and die. it will do this as many as 8 times before it will continue to run. the customer also reports intermittant shut off while driving and again the start and di... Trouble codes: P0406
1999 Cadillac Seville STS 4.6L #8 PCM batt fuse VIN: 1G6KY5497X
Customer had car towed in. Said it died and would not restart. found fuse to PCM blown. replaced fuse and car started and ran fine. test drove 3 miles and ran fine. let run at idle another 10 minutes and ran fine. let sit for one hour and test drove again. car...
2003 Cadillac Seville SLS 4.6L memory mirror VIN: 1G6KS54Y83
I have this cad with the seat and mirror memory system. Everything works but the drivers mirror. The drivers mirror cant find its correct position and keeps moving to the stops. Passenger side works great. Seats move appropriately and all other functions work....
2002 Chevrolet Cavalier LS Sport 2.2L Surge, Cuts out, Stall VIN: 1G1JH52F32
hey all you gm techs i have this cavalier that when started cold it idles good as soon as you put it in gear and start to backup the engine almost shuts down like someone turns the key off then on.it never stalls, almost but it keeps running.it has a new coil ...
2002 Chevrolet Suburban 1500 LT 5.3L A/C Operation VIN: 1GNFK16Z72
Hi all, I have a 2002 Suburban that has an a/c problem. The a/c works good for about 15 minutes then the compressor stops and will not turn back on when a/c button is pressed. Vehicle has automatic temp. control and rear a/c. When the system is inop and the bu...
2003 Chevrolet Impala 3.4L Poor Idle Quality VIN: 2G1WF52E43
this car came with high idle and over heating replaced tps and cooling fan car ran great came back three weeks later same problem. rechecked and found iac motor sticking replaced it same thing no change. the fan comes on but on low speed only. if you unplug th...
2004 Chevrolet Tahoe LS 5.3L transfer case VIN: 1GNEK13Z54
got a good one for chevy, we are a ford dealer . got a tahoe that feels like its being held back on slow sharp turns. have checked both front and rear brakes and differintials and al seems ok. have serviced transfer case and it had really bad looking fluid in ...
2004 Chevrolet Classic 2.2L fuel pulse VIN: 1G1ND52F04
Vehicle was brought in as a no start. Looked to the recent fuel pump but checks out fine. Sufficient fuel pressure (holds steady at just under 60 psi)but no pulse to the injectors. Vehicle will start with starting fluid without hesitation. Everything I can fin...
2006 Chevrolet Monte Carlo LT 3.9L P\S pump noise VIN: 2G1WK15151
Turn all the way one way or the other,pump starts to growl,sounds like pump to me.G.M. techs please help,hate to replace pump and still have the same problem.All data shows no T.S.BS OR RECALLS FOR THIS PARTICULAR PROBLEM.
2008 Chevrolet Silverado 2500 HD WT 6.0L Power mirrors VIN: 1GCHK29KX8
Hello fellow Tech, Hopefully A gm tech may have already tried this, we are considering purchasing a 2008 2500hd sierra 4wd ext cab truck, this particular vehicle has an option camper style power heated adjustable mirrors, code (DPN) . I want to replace them wi...
1993 Oldsmobile Silhouette 3.8L Excessive Emissions, Poor Idle Quality, Surge, Cuts out, Poor Fuel Economy VIN: 1GHDU06L4P
vehicle came from another repair shop after going through extensive plug and play diagnostic. with really bad surge, no throttle response. scanned with genysis; only code was tps voltage. tps voltage steady .2 no change with throttle. replaced tps sensor clear...
1988 Pontiac Sunbird SE 2.0L Poor Idle Quality, Hesitation, Stall, Misfire, Poor Fuel Economy VIN: 1G2JD11K2J
Hi: Vehicle originally had a rapidly fluctuating fuel pressure of 9-13 psi about 4 times per second with a block learn of 145 at all RPM, lean exhaust, hesitation, no acceleration, tendency to backfire. Pressure regulator/spring also fluctuating @ 4 HZ, in s...
1996 Pontiac Grand Am SE 2.4L No Start VIN: 1G2NES2T6T
I have tried the relearn process of leaving the koeo for 10-15 minutes no luck I checked the airbag module for corrosion none even left unhooked to try to start (per info on Napafix) have no scan tool to communicate with cluster ( so I am sol there) the key fo... Trouble codes: P1601, P1629
1996 Pontiac Bonneville SE 3.8L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire VIN: 1G2HZ52K3T
ok so heres my problem i have a customer that brought in a 96 pontiac bonneville non super charged with several problems, quick run down was stalling intermit. "like someone turned off the key" would restart instantly. also during accel. would fall on its face...
2000 Pontiac Montana 3.4L tcc VIN: 1GMDX03E3Y
Vehicle came into my shop missing second gear...so i pulled the trans and overhauled it...on the road test after about 4 or 5 miles it started going into lock up right along with the 1-2 shift along with a code PO742...so i did some testing and determined that...
2001 Pontiac Aztek 3.4L Hydraulic System VIN: 3G7DA03E41
Hi iATN, thank you in advance for taking the time to help us out with this vehicle. I replaced the power steering lines and power steering rack and pinion. All replaced for leak conditions. I bled the system after I was finished. Everything was okay at that ti...
1995 Saturn SL1 1.9L engine VIN: 1G8ZG5282S
car came into to me first with #4 cylinder plug fouling out checked compression and was fair went ahead and replaced cylinder head and compression came up to 175 in all cylinders and returned to the customer. went for about 1000 miles and customer came back an...

Fixes & Summaries for GM
Fix/Summary Answers
2002 Cadillac Escalade 6.0L ride control VIN: 1GYEK63NX2
Thanx to all who replied to my request,some suggest to have Tech 2 to be able to retrieve codes,we dont have the resource for a new scan tool at this time.Customer was in need of the vehicle,i adviced him next time when he bring the vehicle back for service i ...
2004 Chevrolet Silverado 2500 HD 6.6L fuel pump VIN: 1GCHK23244
Turned out fuel had NOT been flushed out as I was told. The gasoline was just dilluted with diesel. Thank you to Jim, Brian, and Kevin for the TSB about this issue. It got me suspiscious as the symptoms were dead on. Although I'm still fuzzy on the dynamics of...
1993 Oldsmobile Cutlass Supreme S 3.4L Poor Idle Quality, Surge, High Idle VIN: 1G3WT34X1P
This was a weird one for sure. I attended a Standard Motor Products class on Fuel Trim Diagnostics and the first question the instructor asked when class started was “How many of you trust what yoru scanner tells you?” He didn’t differentiate by what scanner... Trouble codes: 35 (IAC Failure).
2003 Oldsmobile Alero GL 3.4L Starting VIN: 1G3NL12E83
Well with a lot of help from this grand website I think she's fixed. The problem was actually a power feed to the bcm from the i.p fuse panel "ipc/bcf" fuse feeding circuit 1600. Some suggested a theft deturant problem or bcm. The way I found it was the bcm fi...
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