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Prev Professional Automotive Repair Technical Discussions for June 18, 2014
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1995 Chevrolet Tahoe LS 5.7L courtesy and dome lamps VIN: 1GNEK13K4S
As stated: courtesy lamps dome lamps ... all lamps (courtesy and dome. not map or reading or glove box) on fuse ckt 156 will not shut off. The customer disconnected all the door pin switches and I have unplugged the h/lamp-c/lamp switch. as per the diagram th...
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2000 Chevrolet Corvette 5.7L Head light Door problem VIN: 1G1YY32G2Y
Hello Friends This 2000 Corvette came to my shop with a new dead battery. When I hooked up the battery charger I found that both headlight cover motors turn, but the headlights won't come up. I disconnected both headlight motor assemblies and charged the batt...
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2005 Chevrolet Trailblazer EXT LT 5.3L No Start VIN: 1GNET16M85
HELLO everyone , thanks in advance for any help. I was told that the customer came out one morning and this vehicle would crank over but not start. after that it ended up at a shop who replaced the crank sensor twice, a used computer then replaced the engine c... Trouble codes: P0335 (Crankshaft sensor circuit)
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2007 Chevrolet Equinox LT 3.4L Mechanical
Hi guys and gals, I have a head scratcher here. A 2007 AWD Equinox with 269k on the clock. The problem I am having is this thing wont act up until it's 130 miles from my shop.With no input from driver this thing will start shaking violently at 55, applying the...
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2007 Chevrolet Silverado 2500 HD LT 6.6L Starting VIN: 1GCHK23697
This truck was towed in customer stated he left key on for 4 hours then he was unable to jump start - Customer replaced batteries and ignition switch (OE switch) I found no communication with ECM and BCM replaced and programmed both - performed theft relearn o...
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2007 Chevrolet Colorado LT 3.7L 2ND gear shift VIN: 1GCCS13E17
Came in on the hook. Customer stated no power. Check engine light was on. Only code was p0520 OPS circuit. Was told it seemed to be in limp mode. Replaced OPS\cleared code. P0520 fixed. Test drove and was told it still seems to have shifting/limp issues. There...
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2014 Chevrolet Silverado 3500 HD LTZ 6.6L backup carera
backup camera wires pulled out of 6 pin connector when tailgate was removed, can somebody with dealer wiring information tell me which color wires go into each pin on camera plug. I have a yellow-red-white-black-black-tan the plug is numbered 1-6 in anybody co...
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Fixes & Summaries for GM
Fix/Summary Answers
1987 Buick LeSabre Custom 3.8L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall VIN: 1G4HP5130H
Hi Everyone, Sorry for the delay. Well, as most of you said it was the new MAF sensor we had installed. I knew the reading were weird but just could not tell if it was because of the computer or the data was real. It runs as good as it is going to now consi... Trouble codes: 34 (Mass air flow), 13 (Oxygen sensor).
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2008 Buick Lucerne CXS 4.6L Engine VIN: 1G4HE57Y98
Thank you for all the useful information. [...] this is a Northstar engine w/possible head gasket issues we decided to ship it out and not attempt the repair. Just not enough information to be even remotely confident of a repair. This is evident based on th...
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2003 Cadillac CTS 3.2L valve lifters VIN: 1G6DM57N13
As mentioned in the update, the vehicle was towed to another shop after the exhaust cam seized causing the timing belt to snap. The shop owner working on the car read through the write-up on our paperwork calling out the evident lack of oil pressure and the r...
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1999 Chevrolet Cavalier LS 2.2L Cuts out, Stall VIN: 1G1JF5246X
First thanks to all for your input. As it turns out the ground cable was indeed the problem and at the battery tray where the cable bolts to it. even though it looked good it wasn't until i pulled the cable off and found that just under the insulation the cabl...
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2003 GMC Sierra 3500 8.1L transmission VIN: 1GDJK39G23
Thanks everyone for your assistance. I ordered a reman transmission for the customer. Vehicle runs great.
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