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Prev Professional Automotive Repair Technical Discussions for June 14, 2008
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Open Help Requests for GM
Help Request Answers
1999 Buick Century Custom 3.1L ac blen door VIN: 25DFG25HJ2
itry a nother control ac presser is 35 on low side blend door dis a close manul
1985 Chevrolet Monte Carlo 4.3L coolant,oil pressure guage VIN: 1G1GZ37Z0F
well for the oil pressure guage was reading normal than all of the sudden says 0,when driving guage moves a little bit up to 30psi then normal stopping at light goes back to 0,my guess switch went bad,guage works good.ok now for coolant loss ,when going to wor...
1996 Chevrolet S10 LS 2.2L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1GCCS1943T
Customer dropped truck off overnight with the complaint of poor running. The truck runs poor at idle and cruise. We have recently replaced the fuel pump and filter for a no start condition and performed a tune (plugs & wires) on the truck per maintenance. I in... Trouble codes: P0300 (random misfire)
2000 Chevrolet Express 1500 5.0L No Start VIN: 1GTGK24U8Y
I'm trying to help trouble shoot a guys truck that's having trouble with the PASSLOCK system.The ign.keylock & passcode sensor have been REPLACED but it won't "LEARN" the new parts.It will start but stall as soon as you release the key as the passlock system i...
2002 Chevrolet S10 4.3L front diff.lock VIN: 1GCDT19W62
the front diff on this s10 has a buzzing grind noise while shifting out of 4hi,shifts ito 4hi fine.4wd is not my specialty,but i think it's in the diff.what confuses me is that it grinds while disengaging not engaging.original oil was drained and was nothing w...
2005 Chevrolet Aveo LS 1.6L Poor Idle Quality, Stall VIN: KL1TD62685
This thing is strange. Sometimes revs to 3500rpm and won't correct itself down to normal, other times will not idle high enough to keep running. Have replaced the IAC to make sure it wasn't sticking, no change. TPS shows 12% at closed throttle and engine shows...
1995 Oldsmobile Aurora 4.0L Poor Idle Quality VIN: 1G3GR52C3S
the Ics motor Ratchets when the key is turned on or off, makes no adjustment to idle speed, the idle speed starts out at 1500, then climbs to excess of 3000 rpm,exhaust superheats to the point of causing a fire in less than 5 mins, so running the vehicle for a... Trouble codes: 52 (Snap on Modis internal fault in PCM historical), 109 (Snap on Modis Checksuum error cant read romhistorical)

Fixes & Summaries for GM
Fix/Summary Answers
1989 Chevrolet Camaro Iroc-Z 5.0L Cuts out, Stall VIN: 1G1FP21F6K this one fixed. First I want to say THANK YOU to all who replied. I really appreciate it!!! I replaced the 2 shorted injectors..the ECM..02 sensor..and the vehicle still stalled when you would start to take off. I got to thinking about the VSS sensor a...
2000 Oldsmobile Alero GL 3.4L Misfire VIN: 1G3NL12E7Y
Found Lean injector on # 2 Cyl. Replaced injector, all is well.
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