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Professional Automotive Repair Technical Discussions for February 12, 2013 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2005 Chevrolet Avalanche 1500 LS 5.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3GNEC12Z05 hi everyone! this one came to the shop for a cel on, misfire on #2 & #6 dealer replace coil #2 same result. The truck runs fine on the road but have a slight miss at idle. I checked compression and it was at 100 on 2 and 125 on all the others. Did a wet compre... Trouble codes: P0300 |
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| 2005 Chevrolet Suburban 1500 Z71 5.3L lifters,oil pressure VIN: 3GNFK16Z85 Got this 05 suburban,at times one and sometimes a couple of lifters get noisy.Customer said a couple of times,oil pressure warning came on at idle.Customer wanted to replace lifters.This vehicle has been serviced very well,oil changed about every 3K,engine is ... |
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| 1997 GMC Safari SLE 4.3L Park lights VIN: 1GKDM19W5V I have a problem with a 97 Chevy Astro. It came in with the park light fuse blowing intermittently. Checked wiring harnes splices and connectors, but couldnt find any problems. I can't get the fuse to blow in the shop but if I take a drive and get up above 15 ... |
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| 2003 GMC Yukon XL 1500 SLE 5.3L 1-2 shift VIN: 3GKEC16Z23 This is my personal vehicle and I noticed when I bought it a couple months ago that the shift was slightly harsh from 1st to second.Its gotten progressively worse and is now late as well.It seems to get much better after driving 5-10 miles.I haven't completed ... |
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| 2009 GMC Sierra 2500 HD SLE 6.0L Monitor will not run VIN: 1GTHK53K39 Hi, Reflashed the pcm recently and the evap monitor will not run. Got a rejection sticker during annual inspection because the monitor has not run, all others have, no codes stored. Tried to run the evap service bay test with the tech 2 and the snap-on scanner... |
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| 1997 Oldsmobile 88 Royale 3.8L Security VIN: 1G3HN52K2V Car has been sitting. Only has 16k miles. Security light on all the time. Checked voltage at connector while rotating lock cyl. Jumped to 5v. Replaced lock cyl and found where wire was broken.light still on. Checked for voltage again while turning lock cyl, st... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1992 Cadillac Seville 4.9L Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy VIN: 1G6KY53B6N thank you all for your replies. i have ohmed the imjectors and have on bad on each side. i couldnt have completed this job without your help. i racked my brain for weeks trying to figure it out and pulled the injector fuse... blown found the problem once again... |
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| 2005 Cadillac CTS 3.6L brake lights VIN: 1G6DP56765 Mike and craig were right. Craig sent a bulletin stating what I had was normal. I had it programed and all is well. I was paranoid too quick. |
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| 1998 Chevrolet Venture 3.4L abs pump VIN: 1GNDX03E5W Something I hate to do , BUT , I replaced the master cylinder with ABS unit from auto salvage yard and the vehicle works great.Thanks for all your input. Bought it from Andy's here in Jackson.Thank You Again!!! |
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| 2005 Chevrolet Equinox LS 3.4L Hesitation, Misfire SORRY FOR THE LONG WAIT BUT IT IS FIXED LOTS OF GOOD REPLIES BUT IN THE END THIS VEHICLE IS AWD AND HAD BLOWN A TIRE AND WAS REPLACED BY A TIRE OF THE SAME SIZE BUT DIFFERENT BRAND IS WAS A LITTLE MORE THAN A HALF IN SMALLER THAN THE REST. REPLACING THE TIRE W... |
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| 2006 Chevrolet Impala LS 3.5L shift quality and ses lamp VIN: 2G1WB58N26 we got car back from customer and removed side pan again,metered wiring harness metered solenoid,tried to look in at relucter and could not come with a firm diagnosis for customer.he needed his car due to health issues and decided to not repair at this time.t... |
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| 2006 Chevrolet Tahoe Z71 5.3L air suspension VIN: 1GNEC13Z96 Thanks for the replies. Many of you were correct. I replaced the ride control module & the draw was fixed. I suspected this was the problem because even though the [...] description of how this system operates was vague it did suggest after 5 minutes the sy... |
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| 2007 Chevrolet Avalanche LTZ 5.3L #4 valve burnt VIN: 3GNFK12347 I WOULD LIKE TO THANK ALL OF YOU WHO HAVE TAKEN THE TIME TO REPLY. AFTER THE MACHINE SHOP DISASSEMBLED AND LOOKED AT THE AFFECTED CYLINDER THEY DIDN'T FIND ANY THING THAT SHOWED SIGNS OF FAULT. WE REMOVED THE #4 CYLINDER PISTON AND FOUND NO FAULTS WITH THE PIS... |
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| 2007 GMC W3500 Forward W3S042 6.0L Poor Idle Quality, Hesitation, MIL Lamp on VIN: 4KDB4B1U67 After performing numerous tests the customer came and too vehicle to dealership. I checked all compenets even those stated in replies from others to no luck in solving problem. customer wanted to trade in vehicle so he ddn't want to bother with the problem any... Trouble codes: P2101 (Control Module throttle actuator position), P0120 (Throttle Position sensor 1 circuit), P0220 (Throttle Position sensor 2 circuit), P1516 (Throttle Actuator Control Module Performance). |
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| 2000 Pontiac Montana 3.4L Misfire VIN: 1GMDX03E1Y I have not yet fixed my van. I found no problems with the valve train. No electrical problems. I believe the problem is with the 24x crank sensor pick-up for #6 cly. but have not been ble to fix it because my van goes to the bottom of the pile. thanks for the ... Trouble codes: P0300. |
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| 2003 Pontiac Sunfire SE 2.2L Water Pump VIN: 3G2JB52F63 THANK YOU EVERYONE , you saved me a lot of time . i took the cover off and sure enough the tensioner was extended completely. removed and reset the tensioner and problem solved. again , thanks to everyone who responded. |
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| 1993 Saturn SC2 1.9L Shifting VIN: 1G8ZH1574P Thanks to all who responded, especially David [...], whose information was the problem solver. It turns out that the previous shop had installed a transmission (mp6) for a single cam engine - different gear ratios than this DOHC vehicle. We replaced... |
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