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Prev Professional Automotive Repair Technical Discussions for March 14, 2010
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Open Help Requests for GM
Help Request Answers
1992 Chevrolet K2500 Suburban 7.4L valve lifter
runs bad no codes vac @15 cut out .took valve cover off turn motor bring valve up and it bleed off install all new lifters same thing, and hard to retart untill lifter pump up has 45 psi on oil presure oil come up to rocker. valve adj 3/4 turn change oil and f...
1999 Chevrolet C3500 6.5L tcc pwm circuit VIN: 1GBJC34F6X
well did all this work because of an intermitten shift soliniod b circuit trouble, figured while i was there i would replace all the soliniods . well after a few days code p1860 pops up and trans shifts bumpy but does shift. so i droped the pan inspected could...
1999 Chevrolet C3500 6.5L tcc pwm circuit VIN: 1GBJC34F6X
sorry but i need some one to send me a wiring diagram of the PCM and if possible a componet locate list of componets for the transmission (4L80E) if at all possible. thanks in advance patrick
2002 Chevrolet Trailblazer LS 4.2L Poor Idle Quality, Surge, Poor Fuel Economy VIN: 1GNDS13S32
it drives ok but when it arrive to a stop and then accelerate again the engine sounds like poor of fuel, this is only 2 seconds. after that it runs fine and the costumer say sometimes the engine it dies, so the costumer went to the dealer to buy the tps sensor... Trouble codes: P1345
1997 Pontiac Grand Prix GT 3.8L fuel guage VIN: 5TR58IU876
Hi everyone, i have a fuel guage issue on this pontiac. The fuel guage will read something different if you let it sit for a while. I unhooked the fuel sending unit plug to check to see if the guage would react to the signal wire being shorted to ground and it...

Fixes & Summaries for GM
Fix/Summary Answers
2004 Cadillac CTS 3.6L Misfire, MIL Lamp on VIN: 1G6DM57774
I'm very sorry about the delayed post.Did receice some replies-checking wiring-to ecm.Since the vehicle mainly hot and seemingly only for customer-talked customer into trading men vehicles for the weekend.was able to duplicate problem-no injector pulse on #5.G... Trouble codes: P0205, P0305.
1993 Chevrolet S10 Blazer 4.3L No Start, Surge VIN: 1GNDT13W0P
sorry for the delay was waiting for cust to decide what he wanted to do. finaly decided to try used inj assy , against my advice . replaced inj assy .no change in the way it ran .did more checking ,checked inj res at inj assy ,ok then ck res at harness outsid...
1999 Chevrolet K2500 Suburban 6.5L security system VIN: 3GNGK26F8X
Thankyou to all the responded to my help request it turned out to be a bad connection on the ignition harness under dash cleaned connection and voltage output on scanner turned out to be stable as it should reset code and no returned fault . I also cleaned al...
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