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Professional Automotive Repair Technical Discussions for November 4, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1987 Buick Regal GNX 3.8L Power brake VIN: 1G4GJ1176H We have this Grand National the had the brake boos system quit working. I have read where a vacuum booster could be installed with a kit to make everything work, without the hydraulic boost system. Has anyone had any experience with this situation? Thanks! |
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| 2002 Buick LeSabre Custom 3.8L heating VIN: 1G4HP54K72 heater hose are hot . use scanner to command to go hot ,last about 2 months atcm were is it locator? is dorman #20956 control module what do I have to take apart? don't work on hvac very much thank you don't have Mitchell thank you |
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| 2005 Chevrolet Silverado 2500 HD 6.0L No Start VIN: 1GCHK24U55 I have hit a brick wall on diagnosing this one. Where to turn? vehicle was towed to shop for no start condition. Upon initial checking found fuel pressure good. Spark good on multiple plugs. Injector pulse good on multiple injectors. Graph cam and crank sensor... |
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| 2007 Chevrolet Suburban 1500 Z71 5.3L Oil pressure VIN: 3GNFK16367 Hey folks, could use some help on this one. To give you the whole story I will start at the beginning. Customer brought this vehicle to the dealership, with a misfire, and engine noise. The dealer diagnosed it as a valve seating issue, and recommended the eng... |
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| 2008 Chevrolet Avalanche LS 5.3L high pitch whine VIN: 3GNFK12388 customer says that after she drives the car about 30 miles this high pitched whine comes out of the speakers, It gets less if the radio is turned off, but is still there. The GM dealer replaced the alternator, no change. The noise is above the way my old ears ... |
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| 2009 Chevrolet HHR LT 2.2L Speedometer VIN: 3GNCA23B79 The owner of the this HHR states that mostly driving up hills between 40 and 70 mph that the speedometer will drop to zero and at the same time the red brake warning light in the cluster comes on. They also state that at that moment the engine seems to lose po... Trouble codes: P0013 (Exhaust CMP Actuator Solenoid Control Circuit Symptom 00) |
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| 1981 GMC C2500 High Sierra 7.4L Cuts out, Stall VIN: 2GTGC24W0B Thanks for being there, The problem with this vehicle is repeated control module failure. We have installed new; Cap, Rotor , ignition control module, Coil, Spark plugs. Vehicle is on it's 4th control module in 6 months. The primary waveform pattern doesn't l... |
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| 1990 Oldsmobile 98 Regency Brougham 3.8L No Start, Poor Idle Quality, Cuts out, Misfire VIN: 1G3CW54C6L I found the new coil was hot on 1/3 of it so I replaced the ignition module to solve that problem. Then car would start but not idle below [...]. I read iatn fixes and saw alot of comments about new defective crank sensors and Ignition Modules so I replaced... Trouble codes: 27 (2nd gear switch) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2005 Cadillac SRX 3.6L MIL Lamp on, Pinging VIN: 1GYEE637X5 Yeah, chain. One of the serp tensioners was buzzy, we pulled the belts, and chain noise was clear. Rescanned the cams and there was random plus or minus 2 deg at idle, though driving actual and desired were on the money. As far as I could tell there is one fue... |
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| 2008 Saturn Astra XE 1.8L steering column control module VIN: W08AR67198 Information was not available through conventional sources so scoured Google for any and all post related to this subject, fount a post on a blog where a tech was having trouble with the system recognizing his security and way down in the post was a brief ment... |
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