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Prev Professional Automotive Repair Technical Discussions for June 17, 2007
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Open Help Requests for GM
Help Request Answers
1968 Chevrolet impala 427CID mystery part
During disassembly of the th400 trans for overhaul, I was removing the valve body & other bottom end parts & placing them in the trans pan when a part appeared out of nowhere!!! Ita a small cup plug, .250" in diameter & .250" long with no orifice hole in it. I...
1995 Chevrolet C2500 Cheyenne 6.5L Injector Timing VIN: 1GCGC29FOS
Hi I just replaced an injector pump and all 8 injectors on this truck and it starts fine but I want to ensure the timing is correct. Alldata gives me a procedure using a Tek one scanner it says to put it in injector set timing mode and the desired timing will ...

Fixes & Summaries for GM
Fix/Summary Answers
1996 Buick Century Custom 3.1L Poor Idle Quality, Hesitation VIN: 1GAG85MXT6
a new CTS fixed the problem thanks guys, scanner could not catch it... but the car definitely does need a motorvac / i saw the carbon buildup in intake so those replies were in the ballpark, the broken baffle reply was interesting, as was the reflash scenario....
1992 Chevrolet C3500 Cheyenne 7.4L Hesitation, Surge, Stall VIN: 2GCHC39N71
Thank You to all who replied to this help request. I have applied all the tips suggested but to no avail . The customer wants to give his wallet a short rest. I will continue my work on this truck in the near future with much more of the requested information ...
2000 GMC Jimmy Envoy 4.3L ignition key VIN: IGKDT13W3Y
I would like to thank my comrads that responded first of all. You all were in the same general area with your responces.But I finally removed the covers on the steering column to check the shift lock and there is a little button that some times does not retra...
1997 Oldsmobile Cutlass GLS 3.1L Hesitation, Cuts out, Stall VIN: 1G3NG52MXV
Sorry for the lack of some of the info. This car was not in my bay before I posted, I was going off of what I was told about the car. When the car drove into my bay I checked the fuel pressure and volume, the IAT, ECT, MAF, MAP, Cam sensor, engine RPM, 7x cr...
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