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Professional Automotive Repair Technical Discussions for March 17, 2011 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2002 Chevrolet Suburban 1500 LS 5.3L Voltmeter VIN: 3GNFK16Z52 Hey guys, Hope you can give me some input on this one,any and all welcome. The voltmeter is flickering esp. when load is created on charge system. Ckecked output-steady 14.2-14.4v amps ok as well. Charging tester reports no trouble with diodes. I believe these... |
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| 2006 Chevrolet Cobalt LS 2.2L trans shifting VIN: 1G1AK15F76 ok guys this one is not playing right,what is going on is the trans acts like goes to neutral and bsti goes to clicking intermitantly,pulled codes and cleared and test drove,the further you go the lower the batt volts go on bcm display(provides B+ to bsti and ... Trouble codes: B1480 (batt.run down protect curcuit), B1517 (batt voltage out of range), U2106 (lost com.w/trans control system) |
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| 2007 Chevrolet Express 2500 4.8L Poor Idle Quality, Cuts out VIN: 1GCG29YV57 hello, hope everyones day is going well? we have a 2007 chevy express 2500 with an interseting problem. the customer is concerned about it stalling in reverse and idling poorly ONLY when vehicle is hot. the transmission was rebuilt about 500 miles ago, but i... Trouble codes: P0171, P0218 |
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| 1999 GMC Jimmy SLE 4.3L serpintine belt VIN: 1GKDT13W6X This vehicle has had what seems to be a belt squeal or bearing noise coming from the front of the engine for some time now. The customer has tried everything to eliminate this noise and now its wound up at my shop. He has had the idler pulley, tensioner pulley... |
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| 2000 GMC Sonoma SL 2.2L abs VIN: 1GTCS1956Y Customer concern of air bag light coming on and off at times, abs/trac light coming on and off, abs light on steady most of the time and red brake light sometimes. Code U1041-loss of ebcm communication in pcm. When I can get in air bag module codes B1001-incor... |
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| 2004 GMC Yukon SLE 5.3L MIL Lamp on VIN: 1GKEK13Z64 my scan tool show the sensors "off" and when hammer on block they show "on". I have a Snap on Verus and can not say I saw this on/off reply for the knock sensor. any help is appriecaited. I guese the sensors ae intermitt bad? Trouble codes: P0332 |
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| 1989 Oldsmobile Cutlass Ciera SL 3.3L Stall VIN: 2G3AM51N3K thanks in advance for any help on this problem. this car has intermittent stall,does not comunicate with snap-on solace but will flash code 12 when test pins at DLC are shoted, found injector pulse (driver side)both banks droping out at stall spark ok. found h... |
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| 1991 Oldsmobile 98 Regency Elite 3.8L Pcm VIN: 1G3CW51C11 Hello I have a 90- olds 98 with a no start condition. have good spark, have good fuel pressure but no injector pulse. I have grounded the p/w wire at the ignition module and the injectors will pulse. I have tested the resistance from crank sensor to cam sensor... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2004 Cadillac CTS 3.6L Battery VIN: 1G6DM57714 TRYED A ANTENA MODULE IT DID NOT WORK. SENT OUT TO DEALER AND THAY SAID IT WAS THE DASH BCM. I REPLACED IT AND RECHECKED. STILL A 2.5A DRAW. THE CUSTOMER TOOK IT TO A CADDY DEALER AND THAY HAD IT FOR 2 DAYS AND NO DRAW THE WOLE TIME. IT MUST HAVE HIT THE RIGHT... |
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| 2007 Cadillac CTS 3.6L Hesitation, Surge, Misfire VIN: 1G6DP57757 Thanks to all who replied. We tried the injector flush with BG going into the fuel line at the filter with pump disabled. We were still seeing the same problem. We replace the crankshaft position sensor and the problem appeas to have gone away. Customer is... |
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| 2000 Checker montecarlo 3.8L ac VIN: 2G1WX12K6Y well thanks to every one tha help me on this one, i finaly find the problem it was a wire tha aperanly hat to hot and melted,from the pcm to the relay, i dont know what cosit is fix maybe thay run the ac like allday o somting dontknow, thanks for you help. |
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| 1991 Chevrolet Camaro Z28 5.0L Cuts out VIN: 1G1FP33F2M After installing a injector cleaning device which took the auto 's fuel system out of rhe picture, it did not change.after noticing the spark light stayed on even as the engine died,we saw the injector node light weaken as the engine died.we took a ohm readin... Trouble codes: 45 (Rich condiion), 32 (No egr flow). |
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| 1998 Chevrolet K1500 Silverado 5.7L Brake lights VIN: 1GCEK19R7W If you folllow the wire harness from the brake light switch up above the bracket that holds the steering coloumn there is a connector on the harness found partially broken wires going to the switch at that connector,hard to see and hard to get at, when you ste... |
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| 2000 Chevrolet S10 2.2L engine temp VIN: 1GCCS1941Y thanks for the help, info was very good, the customer called me back and said that it was working great now. must have been something with the heater core. before i rehooked up the heater hoses i blew air both directions through the core, then hooked hoses bac... |
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| 2001 Chevrolet Venture LS 3.4L Window VIN: 1GNDX03E11 First a big thanks to all for replying. The fix was the main switch in the drivers door. It just seems odd that I could control the passengers window from the drivers door but not the passengers door, which you would think uses the same ground in the main swit... |
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| 2002 GMC Envoy SLE 4.2L hard to start warm VIN: 1GKDS13S42 thanks to all the information all of yall shared with me. it ended up being the throttle body. i dont know what inside was actually causing the problem. i had a friend that also had this problem and i took a shot in the dark on replacing it but that was the fi... |
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| 2007 Saturn Vue 2.2L Hesitation, Stall VIN: 5GZCZ33D17 On the second day of testing we did get a VSS code and none of the others returned. We went with the symptoms we had, which was no speed signal from control modules intermittently. We were getting an A/C signal at the VSS so started tracing up to the trans con... Trouble codes: P1574 (Brake Switch problem), P3905 (undocumented), P2039 (undocumented). |
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