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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for February 10, 2007
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Open Help Requests for GM
Help Request Answers
1996 Cadillac DeVille 4.6L No Start
Howdy GM tech's.Got a quick question for you.I have a '96 Deville in which the IPC was replaced with a used unit because the face went blank.The anti-theft kicked in and the car would not crank or start.Upon reprogramming the the new dash with the GM SPS anti-... Trouble codes: 1632 (Theft Deterrent Fuel Disable)
1996 Chevrolet Caprice Classic 5.7L MIL Lamp on VIN: 1G1BL52P1T
The 410 AIR code with engine light keeps coming on. tried replacing all AIR parts. Reads code PO410 then I clear it. Later it comes back. Tried replacing AIR pump and all AIR check valves. Still comes back again and again and again. Any help would be appriciat... Trouble codes: P0410
1998 Chevrolet Blazer 4.3L Excessive Emissions, Misfire, MIL Lamp on VIN: 1GNDT13W9W
Ok everyone this one is winning the battle against me.Vehicle came in with mil lamp on with codes po151 and po300.ck o2 sensors found bank 2 sewnsor 1 was at .4mv hot replaced sensor and it was reading ok untill it warmed up then it started to drop out to neve... Trouble codes: P0151, P0300
1999 Chevrolet K1500 Suburban 5.7L radio VIN: 3GNEK16R7X
does this vehicle really have retained accessory power, the radio stays on till you open door but battery is draining. icaught the radio coming back on again after the door is shut, i checked all the door jamb switches and when i got to the last door (left rea...
2000 Chevrolet Silverado 1500 5.3L steering box and/or steering pump VIN: 1GCEK19T9Y
Customer had 100 miles away whe he lost power steering. Said he looked under hood, belt was on, no leakage apparant. When I got it, after he drove the 100 miles with no powe steerig, the return hose was off and no fluid in system. Put a reman AC Delco sreering...
1999 GMC Yukon Denali 5.7L Starting VIN: 1GKEK13R4X
I am seeking suggestions that I may choose from if I have to attempt a repair without a symptom, only a description of what has happened to the owner outside of the shop.
2001 Oldsmobile Silhouette Premiere 3.4L Starting VIN: 1GHDX23E01
I have a no start. The starter is good.What I know is that turning the key on, everything works except on the insturment cluster I have on mileage, PRND321, or info. The check engine light and seat belt light or on. The turn signals and bright light work. Also...
1998 Pontiac Trans Sport 3.4L Reverse
Thanks in advance for any help on this, My father in laws van has just developed a shudder/ratcheting in reverse. I serviced the trans at 90,000mi and there was no metal to speak of on the magnet and normal clutch material in the pan. The fluid color is slight...
2000 Pontiac Montana 3.4L Front suspension VIN: 1GMDX03E5Y
This van has a noise coming from the left front that sounds like the strut mounting plate binding. It only happens at slow speeds doing a hard turn, such as parking in a parking stall etc. I can make it do it going both forward and back. Have checked for small...
2001 Pontiac Grand Am SE 2.4L Poor Idle Quality, Poor Fuel Economy VIN: 1G2NF12T81
cannot get car to idle aney slower then 1500rpm.tp reeds 12% .59 v have tryed to set to 0%but noluck. iac count65. map .75v 7.08 inhg. long term -15% car is warmd up.02 is good and switching well.Has new intake gasket,tryed new iac,new tp,no vacuum leaks.remov...
2004 Pontiac Grand Am SE1 3.4L MIL Lamp on VIN: 1G2NF52E94
one of my customers called me to fix this problem after another shop replaced egr valve with a new factory unit and also claimed to have cleaned egr ports. i can see a new plenum gasket which does tell me that they probably did. this code has come back everyti... Trouble codes: P0401

Fixes & Summaries for GM
Fix/Summary Answers
2004 Cadillac Escalade EXT 6.0L tpm sensors VIN: 1JU7459302
Thanks so much to everyone who replied!!! It was more than enough responses to get my owner to switch to what most of you said, and that being soap and water. I don't do many tires but am responsible over the techs. As I watched them I could see that they are ...
1990 Chevrolet K1500 Cheyenne 5.7L Speedometer VIN: 1GCDK14KXL
I did a bunch of calling and searching of the service connector([...]). Finally found a dealership that had one. I bought it and looked at it to see what it does. You plug it in to the back of the speedo and touch the two wires to the battery terminals. It ...
1994 Chevrolet Lumina 3.1L 3-4 shift VIN: 2G1WL54T1R
Thanks a lot for all the replies it turned out to be the 4th gear pressure swich in the pump body I used a led circuit tester to back probe the harness and when the solenoid was commanded on the switch did not go to ground removed the side cover and replaced t...
1998 Chevrolet C3500 Cheyenne 7.4L Fuel gauge VIN: 1GBKC34J8W
I appreciate your replies to this problem. This truck has ECM issues that need to be addressed. For now I took the front tank wire (bl/wt) and crossed it with the rear tank wire(bl)and added .160 ohms (approx) resistance to ground then connected them to the se...
1998 Chevrolet S10 2.2L Hesitation, Misfire VIN: 1GCCS1449W
well guys i was unable to get this one figured out even with all the help i recieved from here like the converter and idle air motor and egr, so i sent it to the dealer and im awaiting the verdict once i get it ill advise, thanks again for all the help.
2005 Chevrolet Impala 3.4L ims VIN: 2G1WF52EX5
This one was caused by rats chewing wiring to the Internal manual select switch or IMS. It was in the harness behind air cleaner houseing. One of those weird ones. Thanks to the 3 that replied.
2001 Oldsmobile Silhouette Premiere 3.4L defrosters VIN: 1GHDX03E41
Well, this ones fixed. I got excellent responses, checked on all of them, and here is what I found. Most replies said check the ricirc door for proper operation, which I did while changing the cabin air filters, another suggestion. With filters out, its easy...
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