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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for February 2, 2012
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Open Help Requests for GM
Help Request Answers
2003 Cadillac Seville STS 4.6L draw VIN: 1G6KY54903
Car came in for a draw, battery would go dead over night. checked for draw and has 5.4 amp for a couple of seconds and slowy go down to .16amp and then jump back up. I can hear the radio amp. clicking when draw comes and gos i tryed unplugging amp and still ha...
1995 Chevrolet K1500 Cheyenne 5.7L Surge VIN: 1GCEK19K9S
The complaint this truck came in for was an intermittent torque convertor hunt and downshift (at times)alot of times just the convertor hunt. Didn't have long enough to diagnose- went on hunch and replaced TPS. Finally got customer to leave it long enough to d...
1998 Chevrolet C1500 Cheyenne 5.0L heater VIN: 2GCEC19MXW
Thanks everyone for reading my post and for any help you guys can give me. I have a Chevy truck that the airflow out of the floor vents is not strong enough. Manual heater controls with 3 actuators controlling doors. When you put it in vent or defrost the flow...
1999 Chevrolet Metro LSi 1.3L crank sensor VIN: 2C1MR2222X
99 chev metro dtc p0335 hard starting. but when its cold you can start engine and it will only idle no matter what you do with the throttle. after enginge warms up it revs and runs fine.after hot soak no start, until it cools off. also have dtc p0455 evap syst...
2000 Chevrolet Silverado 1500 5.3L reverse VIN: 2GCEK19T0Y
this was rebuilt 16 months ago and has 10000 miles on it. cutomer called to say that reverse went out on his sons truck. not happy! when the truck arrived at the shop and you put it in reverse it made a squealing grinding noise. laying under the truck it sure ...
2001 Chevrolet Silverado 1500 4.3L Surge, Cuts out, Misfire VIN: 1GCEC14W51
Customer bought truck used 4 months ago. Right away he notices this problem: Driving 45-60 at cruise speeds or light tip in truck has intermittent "jerk" or chug for split second. This jerk can be violent(lifts coins in air in cup holder) . Truck came to us wi...
2004 Chevrolet Silverado 1500 SS 6.0L Unknown VIN: 2GCEK19N94
im pretty on this field. what i did so far...the car had a b0092 air bag code on p.s. front. there a TSB for it, but it just saying to check all wires make sure is not ground to the seat frame or make sure there no broken wires. "check all wires is good". i re...
2005 Chevrolet Trailblazer LS 4.2L Starting VIN: 1GNDT13S45
Vehicle came in about a week ago for no start. Found ignition E fuse blown very weak battery. After repleacement of battery ignition E fuse seemed to be fine after a 6 mile road test and mutiple starts and restarts everything seemed fine i let car go. Yesterda...
2008 Chevrolet Silverado 2500 HD WT 6.6L rear end VIN: 1GCHK23698
have found GM bulletin on this condition #08-04-20-006 which is an engering bulletin saying they are trying to gather info and figure it out.also a later bulletin saying no further info is needed but nothing as to conclusion of what is the cause or fix. anyone...
2000 GMC Jimmy Diamond Edition 4.3L mode actuator VIN: 1GKDT13W5Y
everything works on the system except for no air flow to floor vents. I've watched the mode actuator move with no binding & moves both ways full travel. also the defrost actuator moves full travel both ways.the mode switch has no vac. leaks. according to the v...
2004 GMC Sierra 2500 HD 6.0L brake lights,turn signal
I have a fleet vehicle used for plowing.The brake lights are staying on and the right turn signals comes on but does not blink.The rear turn lights are on a different circuit than brake lights.This condition persists if the brake light switch is disconnected,o...
1998 Pontiac Firebird 3.8L Excessive Emissions, Stall VIN: 2G2FS22K9W
This thing came in running rough and lots of smoke,no codes. unplugged the maf and it cleaned out and ran good. Replaced maf with reman.and no change shoes 20 to 25 gps. at idle the second reman shoes 65 gps at idle and it died right away. What is the normal h...
2003 Pontiac Grand Am GT 3.4L No Start, only when cold inter VIN: 1G2NV12E83
This one is really been a headache for me. please gm techs HELP! this car was given to me because it has been to other people and no success at fixing it, I'm not having much luck myself. Only when cold will the vehicle not start, no spark or injection pulse. ...
2006 Pontiac G6 GTP 3.9L Misfire VIN: 1G2ZM15166
This G6 came in with misfire and trac light coming on. Upon inspection found CEL did not work and the trac light was coming on due to fault in pcm. Found random misfire and catalyst efficiency code for bank 2. Traced misfire back to #2 being a dead misfire. Co...

Fixes & Summaries for GM
Fix/Summary Answers
1994 Chevrolet K1500 Cheyenne 5.7L Stall VIN: 1GCEK14KXR
After repeated days of trying to diagnose problem customer did not tell us that there was a burning smell when truck died.We did take dash apart and found wiring melted the fellows insurance covered the truck and they ended up writing it off.
2003 Chevrolet Trailblazer North Face 4.2L valves VIN: 1GNDT13S83
Thanks to those that replied. I used a wedge tool to hold chain and tensioner shoe in place and avoided having to pull front cover and oil pan making the job a lot quicker. Other than 14 broken head bolts the job went smoothly. GM's tsb advice to shock the...
1997 GMC Jimmy SL 4.3L engine VIN: 1GKDT13W9V
Good information we are going with the original engine just to be sure.
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