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Prev Professional Automotive Repair Technical Discussions for May 12, 2007
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Open Help Requests for GM
Help Request Answers
1987 Cadillac Eldorado 4.1L Compressor VIN: 1G6EL1188H
Customer's complaint: A/C not cooling. Diagnosised electrical side of compressor. I wasn't recieving any juice to the doide. The compressor will work when jumped. Traced the diode wiring back to relays. Did the recommended test in manual. The compressor will c...
1997 Cadillac Eldorado 4.6L Cuts out, Stall VIN: 1G6EL12Y5V
dear cadillac techs this veh came to us with intermittant stall when you come to a stoplight.cust says it never stalls while driving down the road,only when you come to a stop in gear.i personally have had it cut off on me 3 times but it immediately restarts w... Trouble codes: P1599
2000 Chevrolet Monte Carlo SS 3.8L eng. VIN: 2G1WX12K4W
THIS IS A 1998, not a '2000 car!!!Hi guy's sorry to bother but i'd like advice from you experianced g.m. tech's out there on the fastest +/or easiest way to replace the 3800-v6 in this monte carlo,{installing a used engine}.Also any tip's/good short-cuts you c...
2001 Oldsmobile Intrigue GL 3.5L MIL Lamp on VIN: 1G3456AWE4
Came in for 410 code failed IM test. Replaced both Sec. Air Pump valves as they were bad. After repairs car passed but came back with SES light on 410. Doesnt always fail. fuel trims go high and 02 goes low when activated by Tech 2. Indicates good flow.Freeze ...
1995 Pontiac Grand Am SE 3.1L compressor VIN: 1G2NE15M4S
We have been stumped and need your help!! we have this pontiac that came in with no charge on it so we evacuated and recharged the system the low side reading was 20psi and the high side was about 150psi with an ambient temp of about 80f. the duct temp was a b...

Fixes & Summaries for GM
Fix/Summary Answers
1995 Buick LeSabre Custom 3.8L Stall VIN: 1G4HP52L75
Thanks for all the replies, everyone had real solid advice. After a couple days with my vantage on dual pattern and my fluke backprobed int pcm I FINALLY got car to stall while I was watching. Every other time was when I was on phone or across the shop doing s... Trouble codes: P1629 (Passkey fuel enable circuit), P0101 (MAF sensor circuit), P1567 (Cruise control switch malfunction), P0171 (Fuel trim lean), P0300 (Misfire detected).
1999 Cadillac DeVille Concours 4.6L low temperature sensor VIN: 1G6KF549XX
The sensor is in the liquid line running along the firewall under the hood on the passenger side just before the line goes through firewall into evap. I got 4 very quick correct answers to this question. Two of these made reference to possible sensor damage by...
1999 Chevrolet K1500 Suburban 5.7L Lifters VIN: 1GBFK16R4X
Thanks for your help. Several lifters were completely colapsed and would not pump up. I ended up repacing them all after I flushed the engine with an engine flush. I used my primer(with the bushing that directs the oil to the lifters)tool , an electric drill, ...
2002 Chevrolet Malibu 3.1L Autoi Trans VIN: 1G1ND52JX2
I'm calling this a 'fix'in that everyone who replied gave me the right info so that I could find and check the trans fluid level.Unfortunately,the fluid level was O.K. but burned.I believe the clutches are shot and my co-worker is taking the car to a trans sho...
1988 GMC G2500 Rally 5.7L Oil in Cooling System VIN: 1GTEG25K8J
Decided to put another Engine in Van,No quick Fix!Alot of the Responses didn't address my Problem,I guess because it was unheard of to have Oil in Coolant,But It was just that,Nothing else!
1995 Pontiac Bonneville SE 3.8L Warning lights VIN: 1G2HX52K1S
Of the 3 replies, 1 suggested possible multiple PCM's another a bad ABS module and the last to check all grounds. The vehicle has not shown symptoms lately and the vehicle could not remain in the shop for more testing. Unfortunately it is not fixed but it look...
1993 Saturn SC1 1.9L No Start, Poor Idle Quality, Surge, Stall, MIL Lamp on VIN: 1G8ZH157OP
i have fixed this car,however now i own it,customer brought me the title.he did not want this p-o-s.thanks for all the replies,ect,egr,crank sensor.the cps checked good,signal to the icp perfect,upon inspection noticed naked wiring touching in the icp connecto... Trouble codes: 26 (qdm failure).
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