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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for June 27, 2006
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Open Help Requests for GM
Help Request Answers
2003 Cadillac CTS 3.2L Stall VIN: 1G6DM57N33
first off want to say hi to every 1,asking help for another tech, has 03 cadi cts with codes po335,ckp po341,cmp.from what i was told is the car will die while driving down hiway,it will restart.today car would start then die,scoped sensors both look good.any ... Trouble codes: P0335, P0341
1974 Chevrolet Corvette 5.7L hydralic
Hello fellow techs, this one should be simple but is kicking my butt, I must be over looking something.A good customer with an easy going personality and a fat wallet talked me into installing his recently purchased power brake conversion " kit" which turned o...
1989 Chevrolet Astro CL 4.3L Belts VIN: 1GNDM15Z4K
Replaced alternator,then alt/pulley fell off,replaced second alt and tensioner,belt fell off.replaced belt and tensioner again. IT threw belt off for the fourth time.Is there something I,am missing?. THank You, Jim.
1992 Chevrolet Corvette 5.7L Excessive Emissions VIN: 1G1YY23P2N
Hey guys, I hope someone can help me out there. I got this vette failing state emissions testing. when I test with 5 gas, emissions are very clean, but car keeps failing with high hc(4.58grams/mile). I found the long term fuel trim is at 110 at left and 115 at...
1994 Chevrolet S10 4.3L all intruments VIN: 1GCCS14W4R
Owner was driving and noticed all gages on instrument panel not working. Drove for a while and noticed tranny seemed to have only 2nd gear. Drove more and idle got faster. Drove more and had symptoms of low voltage (wipers stopped, etc.) Came in with voltage a...
1996 Chevrolet Corsica 3.1L Mechanical VIN: 1G1LD55M0T
i need to know what the timing marks are for my 96 chevy corsica
1997 Chevrolet C1500 Cheyenne 5.7L Detonation VIN: 2GCEC19R5V
GM Gurus: This truck has a moderate spark knock while cruising at 60 mph and slightly accelerating. The Scan Tool shows 4* Knock Retard and Knock is stil audible. All other parameters OK. Ignition System New Dist., Cap, Rotor, Wires, Plugs. Suspecting Carbon ...
2001 Chevrolet Impala 3.4L Poor Idle Quality, Misfire VIN: 2G1WF55E71
First of all thanks to anyone who takes the time to read and reply to this post. I am at my wits end on this one. This car has a misfire at idle and at steady cruise only. Ltft is -10 to -15% when this miss ocuurs if you put car into open loop with the tech2 m... Trouble codes: P0300
2001 Chevrolet Impala 3.4L dual a/c control unit VIN: 2G1WH55KO1
scan tool showed no codes.We accessed the blend door actuator and removed it.The blend door moves freely by hand and the blend door actuator appeared to work normal.We installed a new actuator anyway and rechecked our air quality-still warm. We installed a new...
2003 Chevrolet S10 LS 4.3L security light VIN: 1GCDT13X43
i have a 2003 chevy s10 pick up the security light is on all the time it will get bright and then go back to the same i did try to shut it off with teck 2 but it will not shut off it will just get brighter i think it is in the cluster but not 100% sure i looke...
2006 Chevrolet Impala SS 5.3L a/c VIN: 2G1WD58C76
this vehicle was brought in straight from the body shop, first thing i did was check the condition of the hoses (ok), after that i vaccum the system for 20min. then charged it 1.22lb first 10sec. you feal it geting a little bit cold and then WARM, i look at bl...
1993 Geo Prizm LSi 1.6L Cuts out, at idle VIN: 1Y1SK5369P
Hello fellow techs. I have this geo that is beginning to get me frustrated. custs complaint is that at an idle with a/c on car has a miss fire. Easy enough right, wrong. I duplicated cust concern but this is not the aveage missfire,it acts like the engine hick...
2000 GMC Sonoma SL 4.3L starter VIN: 1GTDT19W1Y
Hi guys/girls got a odd one here. Truck belongs to a local car lot.The complant was that the starter would run all the time. I went to pick up the truck,hooked up the battery and it started normally and ran fine back to the shop. I replaced the starter relay f...
2002 GMC Sierra 2500 HD SL 6.6L MIL Lamp on VIN: 1GTHK29182
This is driving me crazy! I have this P0101 code as intermittent problem. The signal is good for the MAF and I think the Baro sensor may be the lead candidate for replacement. I can not find any air leaks or problem with the airbox. I replaced MAF with known g... Trouble codes: P0101 (MAF out of range)
1999 Oldsmobile Alero GL 2.4L MIL Lamp on VIN: 1GN3NL52T5
costomer complains of a loss of power after coming to a stop. mil , oil, trac lights come on and car will hardly pull itself. turn car of and it will reset, restart and drive fine. p0122 returns after clearing and driving for some time. p0742 has not returned.... Trouble codes: P0122, P0724
2000 Pontiac Bonneville SE 3.8L Passenger side under dash VIN: 1G2HX54K64
Hello everyone. We have a 2000 Bonneville here with a tremendous water leak just pouring in the passenger side floor. We have pulled the carpet back and we can see the water comming in from behind the heater box. The vehicle apears to have the original windshi...
2001 Saturn L200 2.2L high idle VIN: 1G8JU52F71
Have this saturn intermintally will idle at about 1500 rpm with no codes. Have searched through archives and found a couple similar cases where the tps and connector are faulty because of false readings at idle. When this thing idles correctly the throttle ang...

Fixes & Summaries for GM
Fix/Summary Answers
1996 Buick Riviera 3.8L Cuts out, Stall, Misfire, MIL Lamp on VIN: 1G4GD2216T
all the help was fantastic i replaced all 3 maf wires and a maf sensor from gm car has power and no more driveability watch those aftermarket computer sensors i got the first from carquest and second from mark auto both n.f.g.thanks again Trouble codes: 102 (maf low).
1999 Buick LeSabre Custom 3.8L Not sure VIN: 1G4HP52K1X
well as most of you thought it was the starter. took it apart for the customer to explain and the washer breaks on the drive thanks for all the help might have been crazy with out all your help. thanks again, ryan
1966 Chevrolet CORVETTE 327CID transmission VIN: 194676S122
Thanks to all that took the time to read and reply. I'm embarrassed to say, but human error was to blame. Most mentioned the shifter could be out of adjustment. A few techs even had part #s and brands for the best replacement shifter options. I'm sure replacin...
1994 Chevrolet S10 Blazer Tahoe 4.3L Poor Idle Quality, Misfire VIN: 1GNDT13W7R
First off, Thank you to everone who responded to my help request. your input was accurate and very helpful. I appreciate everyones time. The problem ended up being the Number 6 Cylinder spark plug. I had peviously installed a fresh set of Bosch platinum plugs ...
2000 Chevrolet Cavalier 2.2L No Start VIN: 1G1JC1249Y
Thank you to all techs who replied.Thanks especially to Paul,Alek,Pete,Russell & Kent.Most everyone was right on.I used a headlight in place of the pump to put a load on the curcuit and found a chafed & corroded wire along the driver sill plate.I definately le...
2000 Chevrolet Astro 4.3L compressor VIN: 1GNDM19WXY
the main problem with this repair was getting the customer to leave the van for a couple of days. The problem was the low pressure switch was bad along with the wiring inside the low pressure switch connector. replaced the switch and repaired the connector and...
2003 Chevrolet Silverado 2500 6.0L Hesitation, Cuts out, MIL Lamp on VIN: 1GCHK23U43
thanks for all the replies, it turned out to be an almost broken ground wire g103, it its on the rh rear of the engine into the block, when i was verifying the grounds it broke off, after i replaced that wire it now works fine. Trouble codes: P1516, P1518, P2108.
2003 Chevrolet Silverado 1500 4.8L missfire VIN: 2GCEK19VO3
Thanks to all who replied.We pulled the o2 sensors out ,truck would start and idle with no miss ,turned out to be plugged cats,thanks again .
2000 GMC K2500 Sierra SL 5.7L headlights VIN: R8YF439180
Thank you for the emails. Tom [...] had a diagram which he faxed to me and that did the trick. Customer was happy. Thanks again.
2001 GMC Yukon Denali 6.0L Armrest VIN: 1GKEK63UX1
All the replies mentioned a clip holding the armrest on but I was not real clear on how to access it. I punched 'GM armrest removal' into a search engine and got a link to about.com with the answer. I had to pull the cover up as far as I could to see the clip ...
1987 Oldsmobile Cutlass Ciera Brougham 2.5L Engine VIN: 2G3AM51R1H
Thank you for all the prompt replies. As most of you said, the job can be done without removing the motor by lowering the engine cradle to access it from the left wheel well. Once the timing cover was off, we had to drill through and break the gear off the cam...
1996 Pontiac Grand Am SE 2.4L Ignition Switch VIN: 1G2NE12TXT
The problem was the Brake Transmission Interlock Switch (BTSI) at the base of the shift lever. Thanks for the 12 replies. Doug from VA and Dave from IL identified it. Six replies said to change the lock cylinder and 2 the lock solenoid. They were OK on this ca...
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