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Professional Automotive Repair Technical Discussions for May 11, 2007 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2001 Buick LeSabre Custom 3.8L ac vents VIN: 1G4HP54K91 car came in with complaint ac not working checked pressure its ok have cold air on right center vent & pass. side vent hot air on left center vent $ driver side vent. thanks for any help. |
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| 1996 Cadillac Eldorado ETC 4.6L MIL Lamp on VIN: 1G6ET1294T code always sets at idle ltftb2 37.5 bi29.5 pw b 1 3ms b2 4ms after o2 was repaced went for four weeks before resetting am out of ideas Trouble codes: 174 (lean bank 2) |
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| 1996 Cadillac DeVille 4.6L No Start VIN: 1G6KD52Y5T vehicle farmed from other shop after engine install (used) for a crank, no start condition. I have no spark, no injector pulse and testing has led me to circuit 430 on PCM that is being grounded. This circuit is used for injector trigger and I would like input... |
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| 1999 Cadillac DeVille Concours 4.6L low temperature sensor VIN: 1G6KF549XX scanner shows inlet temperature at 27 degrees and shuts compressor off, duct temperature at 48 degrees. I need to know location of this sensor and best way to access. Mitchell says on right side firewall and also on outlet line between expansion tube and evap.... |
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| 1985 Chevrolet Camaro Berlinetta 5.0L MIL Lamp on VIN: 1G1FP87F1F Has anyone had this code before? My info shows code 35 is not applicable to the 1985 iroc z. If codes are cleared code 35 will set soon as car starts. Any help appreciated, thanks in advance. Trouble codes: 35 (throttle switch shorted) |
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| 1991 Chevrolet C1500 Cheyenne 5.7L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: 2GCEC19K3M this truck came in running rough and had a mil light on. i discovered that the map had been unplugged (electrically) and went to reconnect it. when reconnected the truck shuts off. further inspection revealed a severely worn cap and rotor as well as a broken i... Trouble codes: 12 (ecm check normal code), 34 (Low or no map output while engine is running) |
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| 1996 Chevrolet Tahoe 5.7L low pedal VIN: 1GNEC13RTJ ihave bleed the system both with vacumn and with pedal pressure. the pedal stays low and the light comes right back on is their something i have missed. bleed ,rr,lr,rf,lf. |
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| 2002 Chevrolet Malibu 3.1L Autoi Trans VIN: 1G1ND52JX2 I need some help from G.M. trans guys.I work in an electrical shop and one of our people has this 2002 Chevy Malibu(3.1L)that acts like it is very low on trans fluid(engine revs but car barely moves)I tried to check the fluid level but can't find anywhere to c... |
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| 2004 Chevrolet Express 1500 LS 5.3L Power Stering VIN: 1GNFH15T84 Customer states vehicle has no power stering when parking or moving at slow speeds. Test drove vehicle no power stering when parking or moving at slow speeds. Seems like the harder you press on brake pedal the less power assist you have. Vehicle has hydroboost... |
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| 2005 Chevrolet Impala 3.4L No Start VIN: 2G1WF52E65 Hello, guys! I have this 2005 Chevy Impala in my bay . Vehicle will not crank . We had repaired rear quarter damage on it . everything worked fine while we were repairing vehicle . Ocassionaly battery will go dead and it will not crank but all lights will come... |
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| 2005 Chevrolet Classic 2.2L fuel pump VIN: 1G1ND52F25 this car came in last week with a vary intermitant no start it seems to happen more on hot days after it has been sitting in the sun but will also die every once in a while when coming to a stop while driving. some times if you start the car over and over agai... |
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| 2007 Chevrolet Tahoe LTZ 5.3L Left Front Door VIN: 1GNFK13057 We have attempted to isolate the noise by testing each area by shimming with shop towels at just about every point imaginable in an effort to isolate the noise. We are determined that this is a preexisting condition but as we say “the customer is always right"... |
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| 1997 Geo Prizm LSi 1.8L Cuts out, Misfire VIN: 1Y1SK5269V This car came in as a runs rough and sluggish problem.Found when the car is at idel and upon slow acelleration the car starts to miss but no check engine lamp.Found that cars injector pulse goes away while car is missing.Tried to check igniter box signal but l... |
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| 1996 GMC Yukon SLE 5.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GKEK13R8T Hey everyone, I make it a point not to post unless I am up against it, and with this one I am. This 96 Yukon 5.7R has been to multiple shops with many parts replaced, and still a check engine light/misfire. I have found all cylinders show misfires, as well as ... Trouble codes: P0300, P0172, P0175 |
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| 2002 GMC Sierra 1500 4.3L No Start, Stall VIN: 1GTEC14X13 02 gmc starts and stalls intermittently. fuel press. is within specs and holds press. also.(volume is also good) crank and cam sensors show great waveform and NO drop-out of voltage or signal. checked ignition switch and wiring---all is good. I am stumped on t... |
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| 2002 Oldsmobile Intrigue GL 3.5L Alignment VIN: 1G3WS52H62 Vehicle came in for tire inspection and rotation. Al four tires were worn hard on the inside and cupped. We had put tires on this 39,000 miles ago. Customer does not rotate enough to start with. Check front and rear suspension. Found two loose bearings on fron... |
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| 1994 Pontiac Bonneville SE 3.8L No Start VIN: 1G2HZ52L1R this car won't start on occasions normally after warm up and the security light comes on sometimes if you turn the key off and on it will start or if you leave it for 5 minutes it will start i believe that the problem has to do with the security key locking ou... |
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| 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... |
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| 2001 Pontiac Grand Prix GTP 3.8L MIL Lamp on VIN: 1G2WR52151 MIL light came on after replacing converter, code P1404. Scan tool shows actual EGR position at 8% when it is commanded 0%. When driving car EGR position tracks desired position exactly when commanded over 8%. Tried 2 other ERG valves (1 known good, 1 new) and... Trouble codes: P1404 |
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| 1993 Saturn SL1 1.9L Poor Idle Quality VIN: 1G8ZG5597P we have this car that runs extremely rich. idles rough and black smoke from exhaust all the time. checked o2 and thats reading the way it should. replaced tbi injector to try and still runs the same. found no vac leaks. replaced fouled spark plugs and none of ... Trouble codes: 26 (qdm fault), 45 (rich exhaust) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1982 GMC C2500 6.2L glow plug VIN: 2GTFC24C2C Well it's over, after wating a couple days & borrowing a boroscope I realized I had to pull head, the piece was gone down. I really appreciate all the responses that made me realize what I should have done. When I first pulled out broken plug I bent up lip of ... |
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| 1988 Oldsmobile Cutlass Calais 2.3L Stall VIN: 1G56DUN765 sorry so long to reply,but new computer and alt,and presto fixed thanks everyone who replyed |
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| 2001 Pontiac Grand Am GT 3.4L Ignition VIN: 1G2NW52E01 Thank you to all that replied...I was some time later that the weather finally allowed the problem to reoccur. I found cracked insulation around one of the wires leading to the module plug. While I was there I also changed the module again and I haven't heard ... |
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