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Professional Automotive Repair Technical Discussions for November 21, 2011 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2005 Buick LaCrosse CXL 3.8L Abs Module VIN: 2G4WD56285 Intermitent unwanted abs activation ( every couple of days ) and sometimes abs & traction control lights will come on, but not always. Replaced the right front sensor & hub 1 month ago ( although it tested fine ohms & millivolts ) and was good for three weeks.... |
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| 1994 Chevrolet C1500 Cheyenne 5.7L 1=2 shift VIN: 1GCDC14K0R scanned trans and shift soll A as a code,r&r all sollnoids n scanner shows second but mechanically no applied,got third n fourth n reverse fine.took tranny out n found bushin at rear of pump never been replaced.tranny person installed bushin.installed tranny n... |
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| 1997 Chevrolet Tahoe 5.7L trans 2-3 shift hesitation VIN: 3GNEK18R5V This Tahoe was towed in from an auction with the T case sitting in back of truck. Someone had gone to a lot of trouble to seal off trans so fluid would not leak out because of tcase not being installed. Parts of the tcase were missing so I assumed that was the... |
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| 2002 Chevrolet Monte Carlo SS 3.8L Poor Idle Quality, Surge, Cuts out, Stall VIN: 2G1WX15K32 HEY GUYS,THIS ONE IS DRIVING ME CRAZY!it will intermitently stall,surge,run rough and be very hard to restart.will do this at idle or cruise.hot or cold.when this happens the trac off light comes on,the battery light comes on and the check engine light flashes... |
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| 2004 Chevrolet Avalanche 1500 Z66 5.3L Engine VIN: 3GNEK12T04 chirping noise coming from behind the balancer when engine warms up, suspect oil pump but not certain. Anyone care to share? Thanks in advance for your time. |
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| 2005 Chevrolet Silverado 2500 HD 6.0L headlights VIN: 1GCHK24U05 Thanks in advance for any help on this truck. Customer states that the headlights do not work. Also stated that when the key is turned to the off position the headlights come on. Vehicle has Auto Headlight feature. We verified the customers concern. We can tur... |
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| 1996 Geo Tracker 1.6L Hesitation VIN: 2CNBE1862T this vehicle runs very sluggish & hesitates when cold, after reaches operating temp. seems to run fine. Has fuel pressure within spec Idling an under load, no codes stored and scanner data all looks normal. pulled timing cover and inspected crank pully and spr... |
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| 2000 GMC Jimmy Diamond Edition 4.3L Electronic VIN: 1GKDT13W4Y This automatic climate control equipped vehicle is not producing adequate heat. Engine temp is 88*C on the scanner, air temp does change when cooler temp is selected on the control, I reset the heat actuator motor, but the outlet temp pid never goes much above... |
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| 2004 GMC Envoy XL SLT 4.2L cam/crank correlatio VIN: 1GKET16S84 Hello, anyone out there have fun with one of these? I have a poor idle, cam/crank correlation situation. When you drive it cold it idles nicely but as soon as the cam actuator system starts doing its thing the cam angle desired and actual on the scan differ ... Trouble codes: P0016 |
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| 2004 GMC Envoy SLE 4.2L bad vibration VIN: 1GKDS13S04 Hey there fellow techs! I need some help with this one. This Envoy came in with a complaint for a bad vibration, which under a quick road test, was able to be duplicated. You can feel the vibration from under the driver's seat and throughout the whole vehicle.... |
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| 2002 Saturn Vue 3.0L MIL Lamp on VIN: 5GZCZ63B02 Thanks in advance for reading, Vehicle came in with blown engine.(Hole in block) Swapped out engine with used, (81k) New water pump, timing belt, intake gaskets, plugs and usual fluids. runs fine, (even with MIL lite on) Tested for (+ and -) at heater wires (G... Trouble codes: P0134 (H02S Circuit Insufficient activity Bank 1 sensor 1), P0030 (H02S Heater Control Circuit Bank 1 sensor 1), P0135 (H02S Heater Performance Bank 1 sensor 1) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1999 Cadillac DeVille 4.6L Engine VIN: 1G6KD54Y0X well here is the scoop.heater core was plugged n leakin under carpet leak showed at rea of car,bypass was solid plugged had to bypass n water started circulatin finally.a few more slow leaks also fixed n car holdin temp w/thermstat n place.thanks to all as it ... |
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| 1991 Chevrolet Corvette 5.7L Misfire VIN: 1G1YY2382M Finally!!! Customer gave the OK for a/c plugs & a new set of injectors & BOOM!!! Runs great!!!As for the oil thats another story.Will start teardown soon to see where all this water/coolant is coming from but at least now its running on all 8!! I thank you for... |
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| 1994 Chevrolet Caprice Classic 4.3L Hesitation, Surge, Misfire VIN: 1G1BL52W4R FIRST I WOULD LIKE TO THANK ALL OF YOU THAT TOOK TIME OUT OF YOUR BUSY DAY TO HELP ME. AFTER TRYING BASICALLY EVERYTHING ELSE WE TOOK OFF THE WATER PUMP AND LOOKED AT THE DISTRIBUTOR, NOT A DROP OF WATER INSIDE AND DID NOT SEE ANY CRACKS OR ANYTHING FUNNY IN T... |
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| 1996 Chevrolet Cavalier LS 2.2L torque converter VIN: 1G1JF5246T fix was replacing the two sprockets in trans with the correct ratio,don zaiser from columbus ohio had an old post(2001)that was exactly like mine,when trans was rebuilt the wrong set of sprockets was installed,wow what a problem,thanks again for iatn archives,... |
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| 2003 Chevrolet Trailblazer LT 4.2L Misfire VIN: 1GNDT13523 I have not fixed this vehicle as of yet. The customer declined any further diagnosis. I suspect it is a valve problem and that I will be pulling the head for a pressure check if the customer decides to go further. Trouble codes: P0300 (Random mis), P1523 (Throttle closed position performance), P1481 (Cooling fan speed sensor circuit). |
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| 2003 Chevrolet Tahoe LS 5.3L Unknown VIN: 1GNEK13T73 Thanks for all the great responses this one turned out to be a simple solution the tires though the same size were not the same brand and after measuring the circumfrence it was over and inch difference. The best test was to just rotate so that each axel had o... |
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| 1992 Oldsmobile Cutlass Cruiser S 3.3L No Start, Cuts out VIN: 1G3AL54N6N WELL,AFTER TRACING WIRING HARNESS FOR CRANK SENSOR,AND CHECKING AND RECHECKING(BECAUSE THERE IS ALWAYS THAT THOUGHT IN OUR HEADS THAT MAYBE WE MISSED SOMETHING),I WENT AND GOT A STANDARD BRAND CRANK SENSOR.THE CAR FIRED RIGHT UP.I WASN'T BLAMING THE OEM BRAND ... |
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