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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 17, 2008
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Open Help Requests for GM
Help Request Answers
1993 Buick LeSabre Custom 3.8L Mechanical VIN: 1GH23RT130
Does anyone have a good way to varify whether engine mounts are bad causing the powertrain to bind? Engine not rotating with a socket and breaker bar on the front dampener or could the trans be locked up? I'm a little stuck because the customer won't authoriz...
1997 Cadillac DeVille d'Elegance 4.6L driver's side power mirror VIN: 1G6KE54Y2V
to all that read this, thanks in advance for any advice or direction. vehicle came in with l/s mirror melted. installed just the glass part of mirror. saw no damage to wiring within mirror housing. now when keyless unlock button is pressed the mirror glass j...
1998 Cadillac Eldorado ESC 4.6L Stall VIN: 1G6EL12Y8W
customer reported the vehicle stalled when he was getting off the highway exit ramp restarted and kept driving like nothing happened only does it once a warm up cycle weve had vehicle multiple times in past few weeks started off as body work customer hit somet... Trouble codes: P0175 (fuel system rich bank 1), P0176 (fuel system rich bank 2)
2000 Cadillac Catera 3.0L alarm module VIN: W06VR54R4Y
recived vehicle it would not crank tested with modis and replaced the theft deterent module and transponder key and sent out for reflash car now cranks but wont start and exibits a code that reflects wrong pass code tech at reflashing shop claims there is now ...
1965 Chevrolet CORVAIR 140CID flywheel VIN: 2435134545
anyone have a labor guide for this one? i did it in between other jobs and really didn't track my time kind of just found it neat to work on. i replaced all the seals on the trans and diff. i fixed other stuff like replacing the vent hoses and engine bay seal....
1992 Chevrolet Lumina 3.1L Poor Idle Quality VIN: 2G1WL54T2N
This vehicle came in with as a no start. Changed spark plugs, ignition wires and got the vehicle to start. Then the vehicle would start with a high idle (1700 rpms) with a DTC 35 set in the computer. I removed the AIC from the throttle body measuring the the r... Trouble codes: 35 (iac error)
1993 Chevrolet K3500 Silverado 7.4L no foward VIN: 1GBJK34N3P
assembled the truck after reconditioning and found the trans wont go foward.has great reverse.no codes.checked the large round connector for voltage with test lite on terminal e and bulb is brite. im not a trans guy, any help greatly aprecated.
1995 Chevrolet C1500 Cheyenne 6.5L fuel guage VIN: 1GCEC19S7S
Hi everyone,we have the fuel gage who fluctuate very fast on this one.the fuel level is at 3/4, you drive the truck and if you hit the brake the gage (dash)is rolling from 1/4 to more than 3/4 quickly.I have drop the tank to see if baffle is there and it is.I ...
1997 Chevrolet K2500 5.7L Radio
Just got this truck back from a body shop with the cd/radio totaly inop. it is a theftlock radio but display is blank. lighting on radio works but nothing will come up on display. checked basic like fuse found good. havent had time to really dig in but I'm loo...
2001 Chevrolet Venture LS 3.4L abs module VIN: 1GNDX13E51
the customer says most of the time when this happens is when you first start the car and put it in gear the trac control activates for a second or two then is fine the rest of the day. it never activates going down the road only when first put in gear. there i...
2001 Chevrolet Cavalier 2.2L MIL Lamp on VIN: 3G1JC52441
I'm looking for a little insight as to how this system works exactly, as it is slighty different than other GM's. The vacuum port in the throttle body is above the throttle plate. So you have to raise the RPM's in order to pull a vacuum on the evap system. We ... Trouble codes: P0440
2003 Chevrolet Silverado 2500 6.0L Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 1GCHK23U03
towed this truck 2 times for a now power/stall condition.each tine i get in it and find the ses lite on and runs just fine, tow to the shop,pull codes and get a p1516 each time. first time we replaced the foot pedal as per gm tech, i dont have a flow chart for... Trouble codes: P1516 (tac throttle acuator control)
2005 Chevrolet Trailblazer LS 4.2L right front window VIN: 1DSHJCKVJH
hey there i got this vehicle and the right front door window lock & mirrow dosent work after checks found door module to be inoperative dose anyone no if these have to be reprogramed r is it plug & play
2007 Chevrolet Suburban 1500 Z71 5.3L Stall VIN: 3GNFK16367
hi guys i have this cheve suburban this thing have 2 codes 1 is for evap vent the other is for cam sensor i replace the cam and ecm. i check wiring also times it come up with 5v 1 problem thats why i replace the ecm thank you guys
1992 Pontiac Grand Am SE 2.3L Timing Chain VIN: 1G2NE5436N
I need help! I bought this car from a customer that didn't want to fix it, someone had been into the timing chain and didn't torque one of the cover to cam housing bolts and it came out and broke the camshaft gear, bending valves. I put new valves, timing chai...
1999 Pontiac Grand Am SE 3.4L Steering VIN: 1G2NE52E6X
all right all. I have this grand am that came in for warrenty on the powersteerin pump as it was leaking. the power steering was very inconsistant, most of the time no power. the pump sounded like it had air in it. replaced pump and the result was no powerstee...
1994 Saturn SL1 1.9L MIL Lamp on VIN: 1G8ZG5597R
Hello everyone and help with this darling. This one is in for a code 26 and 27 stored in the PCM. If you have it idling, it won't set a the light on..but you drive it about 3 blocks and on the light comes. This is consistent..no more than 2.5 to 3 blocks and t...

Fixes & Summaries for GM
Fix/Summary Answers
1995 Cadillac DeVille 4.9L Alternator/Charging VIN: 1GWE34546T
Thanks to all. As suspected, the application of battery power to the disabling connector damaged the voltage regulator. David was on the money with his analysis. Thanks for explaining the purpose of the "alternator disabling connector". I sure wish ShopKey...
1996 Cadillac Seville SLS 4.6L heat VIN: 1G6KS52YXT
The drivers door actuator was defective, we removed the actuator and worked the door manually and we had heat. Thanks to all who replied, Kenny [...]
1999 Chevrolet Venture 3.4L Lighting VIN: 1GNDX03E1X
Thanks for the efforts. My problem was a power issue, not a ground issue. And, as many thought, including myself, it was not the positive cable. After the possitive cable] is the underhood fuse box/electrical center. We have 14.2 volts at the box (headlamp fus...
2002 Chevrolet Impala 3.8L Hesitation, Stall VIN: 2G1WF55K92
Hey gang. This ones fixed. MAF sensor was bad. As Miguel from California stated if there is any erratic signals on the scope during the tap test the MAF is bad (assuming the wiring is not bad). I did buy a brand new one (AC Delco) as everyone recommended a... Trouble codes: P0102 (MAF sensor circuit - frequency low).
2003 Chevrolet Tahoe LS 5.3L rear hvac VIN: 1GNEK13T83
Well, you are all right ! The rear control module fixed it. What a stupid setup,the module only goes to 250, so when it goes to 254 it locks up. I probably would have found it if it wasnt for that lousy "powered by google" search engine in the tsb section.
2004 Chevrolet Express 3500 6.0L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1GCHG39U14
thanks to all who replied,this van is fixed it took some time to get the van back here ,its a local cable company van. Andrew [...] hit the nail on the head with this one i looked at the wire harness on the left side over the front control arm and found 3 wi... Trouble codes: P0300.
1999 GMC Jimmy SL 4.3L No Start VIN: 1GKDT13W3X
thanks to everybody that replied, (19 replies). ended up replacing the fuel pump and the truck started right up without any help. mostly everibody agreed that the fuel pressure was an issue, so now I know that on those 60 psi is the minimum to open the poppets...
2003 GMC Sierra 2500 6.0L starter VIN: 1GTHK29U03
2003 GMC Yukon SLE 4.8L MIL Lamp on VIN: 1GKEK13V33
thank you for the help with you comments i was able to find the problem under hood by fuse box i found three wires chewed by a rat . repaired and fix the problem thank you steve Trouble codes: P1125.
2002 Oldsmobile Bravada 4.2L rear or front diff VIN: 1GHDT13522
Transfer case had to be rebuilt...thanks to everyone for the help
2000 Saturn LS2 3.0L MIL Lamp on VIN: 1G8JW52R3Y
thanks to all who replied.this car ended up needing an ecm, the custumer declined the repair.i did figure out that the flow chart from alldata was different than the one from gm.that made diog.this alot harder. Trouble codes: P0141, P0140.
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