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Prev Professional Automotive Repair Technical Discussions for July 31, 2010
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Open Help Requests for GM
Help Request Answers
2000 Chevrolet Express 2500 5.7L Cuts out VIN: 1GCGG25R7Y
hey everybody!!!this van came to the shop recommended by another shop.they replace the engine but after that costumer complaint missing power sometimes,i did not see that happening but have the codes i mentioned,start checking for p0340,the other mechanic repl... Trouble codes: 0340 (cam sensor problem), 0132 (heated oxygen sensor), 0141 (heated oxygen sensor), 0404 (egr system malfunction)
2000 Chevrolet Corvette 5.7L No Crank VIN: 1G1YY32G9Y
i have a corvette that will not crank when key is turned, using a spare key. all gauges and fuel pump turn on when ignition is switched on. does anyone know will the spare key start the vehicle? or do i have to have a key programed? i also get no communication...
2001 Chevrolet Blazer LS 4.3L rocker arms, lifters VIN: 1GNDT13W01
Please read COMPLETELY before responding. This vehicle came to our shop with blown head gaskets. Upon tearing it down we found that one head was cracked. We picked one up at the local salvage yard and sent that head and the other good one to the machine shop t...
2001 Chevrolet Express 2500 5.7L Hesitation, Misfire, MIL Lamp on
Continuous code is the EGR pintle position code due to the egr command is more than 10 percent differnet than what the pintle position really is. This happens intermittantly even with the new EGR. Upon acceleration a distinct loss of power is felt. Code P0101 ... Trouble codes: P0404, P0300 (Random misfire), P0101 (Mass airflow)
1996 GMC Jimmy SLE 4.3L vacuum VIN: 1GKDT13W8T
ac system sometimes is slow to get cold, and air out of vents is weak ,very air volume good at feet, seem to lose air volume at the center vents when accelerating which sounds like a vac leak. have checked vac lines, check valve, can't seem to find any vac lea...

Fixes & Summaries for GM
Fix/Summary Answers
2003 Buick Rendezvous CX 3.4L No Start VIN: 3G5DA03E23
Sorry I can't say that I've fixed this one. Checked all suggestions, tested every sensor and then some. Checked the wiring under the floorpan, wiring to the crank sensors, and tried to heat this thing up to make it not start. It doesn't stall or hickup, it wou...
1997 Chevrolet S10 2.2L engine
Thanks to all replies received, Apparently this engine can bend valves when timing chain breaks under certain conditions. Sometimes although very rarely you can have luck on your side and under very rare conditions this engine can only require replacement of t...
2001 Chevrolet Corvette 5.7L instrument lamps VIN: 1G1YY22G01
John and Steve were right on we sent cluster in to dealer for repair took a while 2 weeks, alls well now that it's reinstalled THANK YOU very much for all that helped! Craig
2002 GMC Sierra 3500 SLT 6.6L valve cover VIN: 1GTJK331X2
Thanks for all the help. The problem ended up being the #8 injector was not seated in the bore properly due to the copper washer falling off the nozzle when i installed it. Caused combustion chamer gases to blow by the injector an dover pressurize crank case.
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