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Professional Automotive Repair Technical Discussions for December 17, 2011 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2000 Chevrolet Tahoe Z71 5.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GNEK13R8Y Vehicle came in with leaking intake gaskets, ran good. Replaced intake gaskets started to miss as soon as put back together. Verus shows 5&7 are misfiring ocasionally [...]. Thinking I did something wrong I went back in and redid intake gaskets. same proble... Trouble codes: P0300 |
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| 2004 Saturn Vue 2.2L MIL Lamp on VIN: 5GZCZ23D04 My unicorn. This Vue has been in and out over a couple months. First with the p0455, found canister vent was intermittently not audibly clicking when commanded (by Genisys, which ours sometimes dont work the best on newer GM's for whatever reason) so replaced ... Trouble codes: P0455 |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1994 Cadillac Commercial Chassis 5.7L Cuts out VIN: 1G6DW52P7R Seemed like the tire size was the issue! The size difference was so small...that's evidently why it would not occur 100% of the time for the customer. (spare tire which was recently put on, was slightly different. Thanks to all for the good suggestions! |
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| 1990 Chevrolet S10 2.5L Excessive Emissions VIN: 1GCCS14EXL Thanks to all who replied and sent me to the information confirming this was a negative back pressure system. This made the diagnosis easy. The internal pressure valve had failed, an EGR valve was the problem. Trouble codes: 32 (Egr). |
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| 2000 Chevrolet C3500 6.5L No Start VIN: 1GBKC34FXY Hi I want to thank everyone for helping out. This one is fixed new pump did the trick, I used the new PMD that I had ordered off the internet along with the relocation kit, I managed to fit it next to the brake pedal. I found the PMD with relocation kit from ... Trouble codes: P0380. |
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| 2003 Chevrolet Blazer Xtreme 4.3L transmission VIN: 1GNCS18X93 found that the coil wire was shorting out causing all the problems replace the spark plug wires again and all is good, i didnt look at the wires at first because they had just been replaced about 2 months ago. anyway just because its new does not mean its good |
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| 2005 Chevrolet Equinox LT 3.4L Leaking r transfer case. VIN: 2CNDL73F05 Remove side cover and found black metallic oil. Remove ring gear with transfer case in car. Found bearing on drivers side pitted an worn. This bearing is an NSK brand, R50-32 this is not a good number. GM does not sell the bearing and the bearing supply houses... |
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| 2006 Chevrolet Silverado 2500 HD LT 6.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GCHK23296 I found a few wires that had worn thru At harness connector on top of left valve cover. Also changed oil (looked very bad) and all is good now. Trucks left 3 weeks ago and all is still good. Trouble codes: P0102, P0540, P0107, P0301, P0302, P0300. |
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| 2008 Chevrolet HHR LT 2.4L ignition lock cylinder VIN: 3GNCA53P48 Tried to spray WD40 and tap on key to no avail. Removed shroud and tapped-kinda hard on the lock cylinder houseing while trying to turn and it took. Then was able to change the lock cylinder the correct way - thanks for the advice guys- and use the updated loc... |
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| 2005 Pontiac Montana SV6 3.5L Cuts out, Stall VIN: 1GMDV23L45 Thanks for all the help. We did replace the Pcm with a GM reman. It does not quit anymore. Customer took it home and all is well. Trouble codes: P0601 (PCM memory error), P0606, U0107 (lost communication with throttle actuator). |
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