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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for December 9, 2005
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Open Help Requests for GM
Help Request Answers
1989 Chevrolet S10 Blazer 4.3L Stall VIN: 1GNCT1823K
Hello all, this vehicle stalls at an idle. It will run in park or neutral usually but if it's in gear or sometimes even in park or neutral it will slowly idle down until it dies. I've checked base timing, fuel pressure, and vacuum leaks, everything checked out...
1991 Chevrolet C3500 Cheyenne 6.2L gauge fuse VIN: 2GBHC39J2M
hello, this vehicle came in with a discharged battery. we replaced the battery and checked the charging system. we found the gauge fuse blown & system not charging. after replacing the fuse & alternator the charging system was fine for about three days. vehicl...
1992 Chevrolet S10 Blazer Sport 4.3L Cuts out VIN: 1GNCT18W0N
hi techs. i got this 92 blazer with cutting off problem replaced spyder injectors and isc motor still same problem after it warms up,it dies out it starts right up. any comments are appreciated! thanks.
1994 Chevrolet C1500 Suburban Silverado 5.7L no gears VIN: 1GNEC16K2R
Could use some advice here. I have rebuilt a few 700r4 and understand that this one is basically the same. However...not sure what to expect with this no gear issue. I want to rebuild it, but would like to know if there is a common problem that would effect al...
1994 Chevrolet S10 LS 4.3L transfer case VIN: 1GCDT19WXR
Hi techs, This vehicle will not go into 4 wheel drive high. I will shift into 4 wheel low with no problem. I replaced the dash switch and also the transfer case control module. When I hit the 4 wheel hi switch the transfwer control module clicks and the light ...
1995 Chevrolet S10 LS 4.3L Hesitation, Surge VIN: 1GCDT19Z5S
Hi hope someone has had a problem like this its driving me nuts. This is a 95 s10 with a manual tranny that runs poor as if it is rich up to 2000 rpm then runs fine. The temp sender was reading low so I replaced it and it didn't change. I have 12 lbs of fuel p...
1998 Chevrolet K1500 Cheyenne 5.7L trans VIN: 2GCEK19R6W
someone said it may be the combination switch, going to do more tests on them wires when get it apart more. voltage to trans. fuse #20 is intermittant.
2000 Chevrolet Impala 3.4L no crank VIN: 2G1WF55E8Y
Have a 2000 Impala with a complaint of no crank at times. We have had it for a week and started it numerous times with no problems. We have watched the pass lock data voltage on Tech 2 while starting. KOEO, 5 volts and goes to 1.29 while cranking every time, a...
2000 Chevrolet Blazer LS 4.3L 4 wheel drive VIN: 1GNCT18W0Y
This transfercase will go from 4hi to 4auto and back but won't go into 2hi or 4lo need help because I can't get any from alldata.Got some ideas from fix posts.any help would be appreciated,thanks
2005 Chevrolet Silverado 1500 5.3L convert to vin Z VIN: 2GCEK19T85
To the GM experts out there. This vehicle is new for customer 10k miles, and now wants to run E-85. The truck is a vin T 5.3 and wants to change it to a vin Z. Is it possible, and if it is what would have to be changed to make this a flex fuel? It sounds like ...
1997 Geo Tracker 1.6L readiness monitors VIN: 2CNBJ1364V
Hello Techs - I have a 97 Geo tracker 1.6 - came in with mil light on code P0135 - O2 heater circuit - and P0400 -EGR flow - We replaced rear O2 sensor, cleared codes and drove. The mil light stayed out and the O2 code is gone. The readiness monitors - catalys... Trouble codes: P0135 (O2 heater circuit), P0400 (EGR flow)
1995 GMC K1500 Sierra SL 6.5L cruise system VIN: 2GTEK19S35
Hi. This vehicle has intermittant cruise control inoperative. All input signals (circuits 397, 87, 84,437, and 420 check out at the PCM.) Brake switch checks out when tested. Anyone know of a common cause of this intermittant? Customer states it works fifty pe...
1998 GMC K1500 Sierra SL 5.7L ABS/ Master cylinder VIN: 1GTEK9R3WR
Have Replaced everything on braking system with the exception of front calipers, lines, and asb unit still brake pedal is a little soft and very little power in brakes. Can't even slide wheels in loose gravel without using both feet. What am I missing or are t...
1989 Oldsmobile Cutlass Calais 2.5L Hesitation, Stall VIN: IG3NL54U7K
Vehicle came from another shop, they put the plugs and wires on. Customer concern is that the engine will backfire through the intake and stall. Problem is very intermitant and only happens when accelerating from a stand still. I've noticed a hesitation almo... Trouble codes: 45 (Rich Condition)
1996 Oldsmobile Cutlass Ciera 3.1L oil VIN: 1G3AJ55M2T
Car originally came in about18 months ago with the customary water in oil, but never overheated. Replaced intake gasket with NAPA , (O.E. gasket was broken), flushed oiling system, and all is well for about 14 months. Came back with same symptoms, so I replace...
1999 Oldsmobile Intrigue GL 3.8L MIL Lamp on VIN: 1G3WS52K5X
Vehicle throws code P0172 fuel system too rich bank 1. Was wondering if there were any common problems with this code on these vehicles??? Scanner shows everything within specs and vehicle runs great. Only complaint from Customer is Check Engine Light keeps co... Trouble codes: P0172 (bank 1 too rich)
1969 Pontiac FIREBIRD 400CID generator light
Trying to turn out the light now and bypass the original regulator wiring. The charging system works with the B+ to the regulator and the B+ terminal or course, but I haven't been able to figure out how to turn off the generator light. It appears that the li...
1998 Pontiac Firebird Firehawk 5.7L Oil Pump VIN: 2G2FV22G9W
This vehicle was towed in today, the owner says it was put in the paint shop for a custom paint job and sat for approx. two months only being started to move it around the shop. He picked the car up yesterday and on his way home the lifters started rattling an...
2002 Pontiac Grand Prix GT 3.8L Stall VIN: 1G2WP52K62
I am experiencing a very strange condition with this vehicle.When first starting in the morning or any time after it has set for an hour or so the car will start fine run for a few seconds then stop like shutting off the key. Fuel pressure is in spec no codes ...

Fixes & Summaries for GM
Fix/Summary Answers
1992 Cadillac DeVille 4.9L turn signals VIN: 1G6CD53B9N
Thanks for all the replys. Installed a 232hd flasher & recrimped terminals. All ok for now but only time will tell.
1994 Chevrolet K1500 Cheyenne 5.7L 1-2 Shift & Overdrive VIN: 1GCEK19KXR
Well this one is out the door. The problem ended up being the reman ECU that I initially installed. I think most of the problem could of been avoided if I would of received accurate info from the customer. Everything I asked him indicated that the shift proble...
1997 Chevrolet Astro 4.3L Stall VIN: 27465NHT0J
hey guys sorry for not supplying more info on this vehicle,i went to work today and started working on the van, fuel presssure was 60lbs at idle and 65 on acceleration.I hooked the scanner up and decided to road test,i had cleared the codes and started driving... Trouble codes: P0719 (torque /brake switch circuit low input).
2000 Chevrolet Silverado 1500 4.3L security VIN: 1GCEK14W5Y
I only had 3 replys to this problem. I'm guessing that my problem is not too common, that being the security light on and the vehicle starts and runs normally. Thanks to Donald [...] for nailing this one. He had the same problem and thankfully took the ti...
2000 Chevrolet Impala 3.4L Cuts out, Stall VIN: 2G1WF55E3Y
thank you thank you thank you!!! i had a lot of great help from you guys (david adam mark glen david) james [...] hit it on the head. it was the wires from the crank sensor 7x to the ing control module they were melted. i looked at this earlier but could not...
2003 Chevrolet Silverado 2500 HD 6.6L speedometer VIN: 1GCHK23173
4 of 7 replys have replaced cluster assembles on these particular vehicles, 2 have had more than one truck with defective cluster. I ordered reman cluster last week from ISS (instrument sales & service) in Portland OR. Installed cluster today and another one i...
1995 Pontiac Firebird Formula 5.7L Cuts out, Stall VIN: 2G2FV22P8S
i finally took the car on anovernight road test with scanner etc hooked up, after akmost a 100 miles of running the darn thing ran perfectly??? i gave the customer back the car and will repost if anything happens, thanx for the three replies!!!
1996 Pontiac Grand Am SE 2.4L Hesitation, Cuts out VIN: 1G2NE12T5T
well heres what happened, just went through and started graphing all the sensors and vehicle started bogging down worse than ever in the bay, so i thought for a minute and decided to drop the cat converter and low and behold particles started falling out of th...
2002 Saturn L200 2.2L Bearings? VIN: 1G8JU54F92
Well, I appreciate all the help I have received, although it makes me feel like a bit of an amateur to need help on such a simple problem. Almost everyone got it right. I just changed the wrong side.
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