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Prev Professional Automotive Repair Technical Discussions for December 10, 2005
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Open Help Requests for GM
Help Request Answers
1989 Chevrolet S10 4.3L High Idle VIN: 1GCDT14Z0K
This truck has a high idle. Came in with O2 dead, replaced O2 sensor and now has switching O2 and closed loop. Found IAC unable to extend, replaced IAC motor. I can plug the IAC bypass and achieve a perfect idle, as low as 500 rpm's or even less with no vacuum...
1990 Chevrolet Lumina 2.5L No Start, Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 2G1WL54R4L
Ok, this 90 Lumina comes in on the hook, wont start, the battery was dead, so we charged it up, and the car starts, get ready to back it out for road test, and it dies, Wont resart. good spark, no injector pulse, check all the wiring, cleaned connections, car ...
1995 GMC Jimmy 4.3L Cuts out VIN: 1GKCS13W5S
95 gmc jimmy a/t 4.3 w engine. got good fuel pressure and runs great till warm and cuts out, then wont start till cooled down.holds 55-60 lbs fuel pressure.can't communicate thru obd11 connector-can i use aldl? doesn't have check engine light on.
2000 GMC Sonoma SL 2.2L Lack Of Power VIN: JGTCS1955Y
Thanks for spending the time to read my post. I have a 00 Sonoma that we recieved from another shop that installed a short block from a 1996 S10 After doing some checking I know these are different blocks, But they reused the head off the 2000. The truck runs ...
1997 Pontiac Bonneville SE 3.8L Auto climate control VIN: 1G2HX52K7V
Customer came in with a no heat symptom. Customer stated there has been no coolant services done in a year or so there should be no air pockets. The auto climate control display will flash only sometimes but when it does the heat will go cooler (not cold) and ...
1998 Saturn SL1 1.9L computer, trans VIN: 1G8ZH528XW
we have this saturn that came in with reverse gear slipping and it had a code for 2nd gear ratio fault. i was told it had bad trans so we installed a used one and now the chack enging light is on with many codes so we called wrecking yard they said computer ha...
2000 Saturn SL2 1.9L MIL Lamp on VIN: 1G8ZK5275Y
Last week I replaced on this Saturn the evap vent solenoid,the evap purge solenoid and gas cap I also used the Snap-On smoke machine to check if there was any leak and the system is ok,after a week code Po442 will be on,all parts used are new original Saturn p... Trouble codes: P0442

Fixes & Summaries for GM
Fix/Summary Answers
1996 Buick Skylark Custom 3.1L No Start, Stall VIN: 1G4NJ52M7T
After ck everything out we found what Mark [...] suggested the pcm was not geting the security signal from the dash cluster. took some time and had the dash all out. found a used dash cluster adn all is well. thank every one for the replys. thanks Mark you had thi... Trouble codes: P1629.
1998 Chevrolet S10 4.3L Hesitation, Misfire, Poor Fuel Economy VIN: 1GCCS14XXW
you guys are great!!! thanks for all the replies, some of you were close but several hit this one on the head. i pulled the dist to have a look at the teeth on the gear, they were half wore down! i installed a new dist after using a cutting burr to put an adju... Trouble codes: P0300 (engine misfire).
1999 Chevrolet Monte Carlo Indianapolis 500 Pace Car 3.8L Cuts out, Stall VIN: 2G1WX12K3X
Fix was air flow sensor replacement. Although it never hard failed. Fortunately during one of many road tests monitoring data, vehicle stalled and would not restart. I disconnected MAF to get substitute value and it started. Would have completed two weeks ago ...
2001 Chevrolet Silverado 1500 4.3L Hesitation, Surge, Misfire, MIL Lamp on VIN: 2GCEC19W91
thanks for all info and for all whom took time to read. after many gruling hours of hitting the brick wall, we called a help hot-line and they faxed to us a tsb for shimming the crank sensor. i have seen a similar tsb for the same repair but the problem was du...
2002 Oldsmobile Alero GL 2.2L engine VIN: 1G3NL12F82
My customer came in today and I let him take the vehicle at no charge. My tech drove the vehicle home for three nights , (30 miles each way) with cust. permission trying to duplicate the problem. I provided all the replies from IATN and he has diaged on this v...
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