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Professional Automotive Repair Technical Discussions for March 27, 2014 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2005 Cadillac CTS 2.8L No Start VIN: 1G6DM56T25 This car has been in mt shop way too long! It came in and the customer said it lost power a quit. I diagnosed it and found out it broke the right bank intake cam and gear and bent a bunch of valves. Long story short, customer wanted a used engine put in. I fou... |
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| 1994 Chevrolet S10 Blazer Tahoe 4.3L fuse VIN: 1GNDT13W5R I'm sure this issue has been posted before but I'm not a premium member so i don't have access to the search function. This truck blew the 20 amp gauge fuse when it hit a bump. Since then, it will randomly blow when driving. I can make it blow by power braking... |
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| 2001 Chevrolet S10 4.3L No Start VIN: 1GCDT13E51 Thanks in advanced for all the help. This truck came in on the hook with a no start condition. It seems like a fuel pump to me, but their are some things that are making me nervous. The fuel pressure is 54 PSI which it too low, but when I spray carb Cleaner in... |
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| 2005 Chevrolet Silverado 1500 4.8L Mechanical VIN: 1GCEC19V05 Vehicle was brought in this morning for a miss. Isolated it to cylinder #4. Pulled valve covers off because of low compression and found that the intake rocker arm was barely moving. Pulled the rocker arm off and found a bent pushrod on this cylinder intake si... |
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| 2006 Chevrolet Tahoe Z71 5.3L First,second, third, and drive. Reverse works VIN: 1GNEK13T16 Vehicle has no codes. Trans only works in reverse but sometimes if it's in drive in will try to move forward and bucks a little like it's locking up. Just want to see if you guys think there is anything I should check first before I call a trans. Was also low ... |
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| 2006 GMC Envoy SLT 4.2L No Start First off, thank you greatly for reading this post and giving me your insight on how to fix this thing. I got a call from an older gentlemen this afternoon wanting to tow in a 2006 GMC Envoy 4.2L to my shop. He had it at another shop and they failed to fix it... |
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| 2002 Oldsmobile Alero GX 2.2L Monitors won't reset VIN: 1G3NK52F12 GM techs or anyone with knowledge on why this Oldsmobile won't reset the computer monitors for oxygen sensor (O2 heater monitor ran immediately after repairs)and catalytic converter. I've driven this vehicle five times since repairs per Alldata specific to the... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2003 Cadillac CTS 3.2L MIL Lamp on VIN: 1G6DM57N33 Got a new cam sensor from the dealer-fixed it-scoped the new cam sensor-pattern looked the same as the old one??-must have been something in the signal the pcm did not like-Thanks for all the help Trouble codes: P0341 (Cam sensor error). |
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| 1988 Chevrolet K2500 Cheyenne 5.7L Hesitation VIN: 1GCFK24KXJ Been so busy...many techs referred to fuel pressure as a critical point of interest. The actual culprit was the amount of fuel flow. Found this by trying to measure the fuel volume and it came up short of the specs. Once again, the basic diagnostic procedure w... |
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| 2003 Chevrolet Impala 3.4L Hesitation, Noise on accel VIN: 2G1WF52E43 Thanks to everyone that replied, I replaced the cat converter, o2 sensors, resonator pipe and muffler. Car is showing a nite and day difference. Runs much better. Thanks again folks |
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| 2004 Chevrolet Silverado 2500 HD 6.6L Fuel Pressure VIN: 1GCHK23284 thank you for all the replies. i know we got a lot of recommendations to not install the banks system but customer did insist and would take the risk. first off we replaced the pressure regulator and check vehicle operation again. the pressure was now stab... |
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| 2007 Chevrolet Impala LT 3.9L Unknown VIN: 2G1WC58R27 Thanks to all that replied. The PS fixed the problem so far. But there is one thing I'd like to share with everyone...If you bid this fix be sure to include a new side cover in your price. Got to the last bolt on the bottom and the thing cracked at the boss. C... |
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| 1997 GMC C2500 Sierra SL 5.7L MIL Lamp on VIN: 1GTGC24R9V Thanks Troy for that lead, it appears that company no longer operates but did leave behind some information. I was unable to match my system to what they had. Doug, Thank you, That was the way I attacked this today, I was unable to locate any schematics but d... |
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| 2001 GMC Sierra 2500 HD SLT 8.1L blend door VIN: 1GTHK23691 Well this one is still not fixed. Need to close the request due to time. If I would happen to come up with a fix I will post it. Thanks for all the replies. |
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| 1995 Pontiac Grand Am SE 3.1L Poor Idle Quality, Surge, Cuts out, High idle when cold VIN: 1G2NE55M0S Well, I'm calling this one a wrap finally! It looks like it was a combination of two things. After the last PCM I installed, it would set a code 22 for the TPS. Still skeptical and not wanting to toss parts on it, I drove it for a while. Sometimes it would be... Trouble codes: 86 (Internal ECM error), 87 (EEPROM error), 44 (Lean exhaust), 45 (Rich exhaust), 33 (Map circuit high), 34 (Map circuit low). |
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| 2003 Saturn Vue 3.0L TCC lockup VIN: 5GZCZ63B13 Finally got this Saturn fixed with a new TCM and somebody that could flash it correctly.I've never been a big fan of used modules, but I know people who do it-Usually the customer trying to save money.I thank everyone who offered their opinion and we used that... |
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