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Professional Automotive Repair Technical Discussions for August 17, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1998 Cadillac DeVille d'Elegance 4.6L Interior Lights VIN: 1G6KE54Y3W The interior lights don't work when opening a door. We took the cluster out to have repaired. The owner said he BELIEVES the interior lights were working before we repaired the cluster, but he's not 100% positive. The interior lights will come on when you tu... |
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| 1996 Chevrolet K2500 Cheyenne 6.5L Hard Start VIN: 1GCGK24F8T This is my first post so I just wanted to see how this process works. We have this truck in here and it starts up but you have to give it throttle to make it actually fire. Glow plugs are working and in spec. All cylinders fire smooth with it is running. It ju... Trouble codes: P0251 (Injection Pump Cam System), P0370 (Timing Ref High Resolution), P1216 (Fuel Solenoid Response Time), P1218 (Injection Pump Calibration Circuit) |
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| 2000 Chevrolet Silverado 2500 6.0L MIL Lamp on VIN: 1GCFC29UXY Mayday! Mayday!! Thanks for your help on this headache!! Customer has been dealing with this problem for 3 years now. At approx. 60k miles, it started setting P0157 codes Bank 2 Sensor 2 low voltage. NO other codes or symptoms. Dealer replaced that O2 SEVEN ti... Trouble codes: P0157 (Bank 2 Sensor 2 low voltage) |
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| 2002 Chevrolet Blazer LS 4.3L Extended crank VIN: 1GNDT13W12 Hello we have a blazer here that has me a little stumped. Truck has an extended crank after a brief sitting period or over night. Happens hot or cold, Acts like loss of fuel prime however is pressure is present under both hot and cold start. I have tested all ... |
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| 2003 Chevrolet Astro 4.3L Hesitation, Misfire VIN: 1GCDM19X43 This van was in for a check engine light on and smog failure. The poor performance hesitation was intermittent at this point and we could not get it to act up even with the customer driving the van. Intake gaskets, maf, one 02, fuel cap, and cats were replaced... |
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| 2005 Chevrolet Monte Carlo LS 3.4L No Start VIN: 2G1WW12E05 Intermittant start/no start. when it dose run it shurges and stalls. came from another shop where they did put a ckp A in (crank sensor just behind the harmonic ballancer), and as i got the car i see a RMP signal of 366rpm at the crank sensor while the car is ... Trouble codes: P0327, P0336, P0341, P0335 |
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| 2012 GMC Terrain SLT 3.0L LF Wheel Speed Sensor I an having trouble pinpointing an ABS / Traction Control issue on a 2012 GMC Terrain. The customer complaint is Service Traction System message accompanied by AMS MIL. Codes pulled initially were C0035-5A and C0041. Both codes refer to LF wheel speed rational... |
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| 1978 Pontiac Bonneville 4.9L pressure switch VIN: 2N37Y8P235 Customer requested A/C to be fixed. After inspection found compressor frt seal bad and comp was hanging up. There was no freon in system. Customer wanted to do retro to R134 since R12 is pricey. Did all the required changes, flushed the system & serviced with ... |
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| 2008 Pontiac Montana SV6 3.9L No Start, Cuts out, MIL Lamp on, No Power VIN: 1GMDU03W38 Hi this van sometimes idles with a slight miss no codes for that and boggs down severely its just not drivable, and if you put the pedal to the floor it will intermittently take off normally. It is also very hard to start and sound like the timing is going way... Trouble codes: P0336 |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1985 Chevrolet El Camino 5.0L Poor Idle Quality VIN: 3GCCW80H7F First off I would like to thank all those who took the time to post answers. As embarrassing as this is the technician who put the air cleaner back on apparently missed the center hole and crammed the center air cleaner stud in the arm that holds the secondary... Trouble codes: 24 (vehicle speed sensor). |
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| 2003 Chevrolet Trailblazer North Face 4.2L Air Bag Code B0041 VIN: 1GNDT13S93 For the main issue I found a fatigued & broken brown wire under the drivers seat in the harness right where the air bag / power seat wires disappear under the carpet. I repaired the wire with solder and heat shrink, reinstalled the seat, reconnected the batter... |
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| 2004 Chevrolet Impala 3.4L Poor Idle Quality, Misfire VIN: 2G1WF52E34 Thanks to all for the numerous responses. Unfortunately the customer lives 40 miles away and I have been unable to get vehicle back yet to confirm but I feel internal vacuum leak via a failed intake manifold gasket sounds by far most likely cause given my sym... Trouble codes: P0300 (Random misfire). |
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| 1996 Oldsmobile Cutlass Ciera 3.1L No Start Thank you to all that responded. The problem was in the injector harness, the pink power wire was nearly severed as it went under the fuel rail. I had tested the injector harness at the connector and there was continuity but is wasn't until Craig & Jurgen remi... Trouble codes: P1200, P1406 (Egr pintle position circuit problem). |
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