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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for October 6, 2012
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Open Help Requests for GM
Help Request Answers
1996 Chevrolet Blazer 4.3L Poor Idle Quality, Hesitation, Cuts out, MIL Lamp on VIN: 1GNCS13W1T
Good Morning , This S-10 blazer will run good once warm, all day long. Let it sit for a day or more,it start's rough, idle's rough ,drive it, loss of power,give it alot of throttle and it clears up. It will stutter on accel. until warm then run's good. The cu... Trouble codes: P0300 (Random mis-fire)
1999 Chevrolet Malibu 2.4L engine VIN: 1G1ND52T2X
Owner of vehicle said car stalled out and started acting funny after vehicle was re-started. It threw codes that prompted customer to replace TPS, crankshaft position sensor and fuel pressure regulator. He also installed new plugs and upstream oxygen sensor an...
2000 Chevrolet C3500 5.7L Hesitation VIN: 1GCGC34R0Y
This vehicle has plenty of trouble codes. It does have a terrible driveability problem. When it is started up it will idle very high and finally idling down. When it is started and takes off it will bog down and pop back through the throttle body until you rea... Trouble codes: P0101, P0122 (Tps), P0404 (Egr), P1122 (Tps)
2003 Chevrolet Venture LS 3.4L rear air ride VIN: 1GNDV03E73
Thanks for the help. the air pump runs and pumps up the shocks but the auto air ride dont work. I belive it to be the air hight sensor but am not sure how to test it. Can any one help
2006 Chevrolet Trailblazer LT 4.2L Poor Idle Quality, Stall, MIL Lamp on
The truck came into the shop with a rod knocking I never was able to drive the truck before the repairs were done .I rebuilt the motor install a new crank # 5 piston and rod when cleaning the motor i found the cam phaser stuck and the solinode filled full of m...

Fixes & Summaries for GM
Fix/Summary Answers
2008 Chevrolet Silverado 3500 HD WT 6.6L oil VIN: 1GCHK33608
Thanks again to all those how took the time to answer. Some suggested injectors but I agree with Matthew that this problem does not occur anymore in the new duramax. Customer took the truck and we will have to decide on the high pressure fuel pump. Thanks Bara...
2003 Pontiac Grand Am SE 3.4L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 1G2NF52E63
I appreciate all the responses. Before I posted the request I assumed a valve train(top end) problem. I talked with the customer and advised him that I needed to do some "teardown". His response was that he would get into that himself. He told me that he wante... Trouble codes: P0300 (Engine Misfire detected).
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