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Professional Automotive Repair Technical Discussions for December 11, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2002 Buick Rendezvous CX 3.4L interior lights VIN: 3G5DA03E52 One for you GoodWrench boys. Got this 02 Rendezvous that had the BCM replaced for intermittent operation of power windows etc. New BCM fixed that problem but now none of the interior lights work. Dash dimmer also doesn't work. The shop thought maybe they hadn'... |
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| 2006 Cadillac DTS 4.6L riding, tracking VIN: 1G6KD57996 The customer complained that when the brakes were applied he had a feeling that the car had a left to right pulling/sway motion and then track straight until you stopped. We checked the steering components and found that the wheels (when the car was in the air... |
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| 2004 Chevrolet Tahoe LT 5.3L Mechanical VIN: 1GNEK12Z04 Vehicle came in with a frozen left front caliper. Replaced calipers on front and all four brake pads and rotors. Went to manual bleed and lost brake pedal and red brake light came on. Now i have no brake pedal. The pedal does not come back up unless i pull it ... |
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| 2005 Chevrolet Trailblazer LS 4.2L ignition, fuel pump, etc VIN: 1GNDS13S05 We have a 2005 Trailblazer 4.2l with a no start condition. First thing I disconnected the battery and cleaned the throttle body with no luck. I hook my solus scanner up and it shows a p1682 igntion switch circuit fault. The code will not clear. The engine will... |
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| 2007 Chevrolet Silverado 1500 Classic LS 5.3L Failed Smog Test VIN: 2GCEC13Z17 Unable to complete Catalyst monitor. All monitors are competed except Catalyst. Both the customer & I have driven this truck hundreds of miles. I printed up & followed the procedure outlined in GM Doc.ID 744510 I've had a few stubborn vehicles in the past but ... |
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| 2008 Chevrolet Equinox Sport 3.6L ecu VIN: 2CNDL73738 replace battery on other shop and car wont crank or start. theft light wont light up get codes p0513 and p1631 only, on scanner when connected I can see key is learn but when turn the run position I also see crank request ok, but car wont start. any ideas |
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| 2005 GMC Sierra 1500 SLE 5.3L Valve Train VIN: 2GTEK13T45 Vehicle initially came in our shop after the customer attempted to replaced his stock exhaust manifolds with headers and broke the back stud off in the heads on both sides. Passenger side was easy enough but the driver's side we had to r and r the engine to ac... |
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| 2009 Saturn Vue Hybrid 2.4L code only no symptom VIN: 3GSCL93Z19 Im looking for a known good waveform for the cam crank correlation on this engine. any help would be great. thanks Trouble codes: P0340, P0431 |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2001 Buick LeSabre Limited 3.8L Brakes? VIN: 1G4HR54K71 As several of you mentioned the lower control arms were the problem. could not feel any play but after removal the problem was obvious. Thanks to all. |
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| 1982 Chevrolet C10 Scottsdale 4.1L Exhaust VIN: 2GCEC14D4C Wow one hell of a parts gal.. Thanks all found one.. White bro in Columbus Ga great ppl .. She was able to locate it in just a few hours.. Other failed me lol |
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| 1994 Chevrolet K1500 Cheyenne 5.7L Engine stall, rough idle VIN: 1GCEK14K0R David [...] was the most helpful, suggested replacing fuel injectors, which did correct the problem. Injectors ohms were correct. Injector voltages were all in line, spray pattern looked good, scoping injectors showed no problems. Which is to coin an old phras... |
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| 2000 Chevrolet K3500 6.5L No Start VIN: 1GCHK33F6Y ok the truck is fixed, even though the new pcm is not flashed to the veh it still should have data with a scanner. i went through 3 bad pcm's unitil i got a good one. and these were reman not used. thanks for the help everyone. |
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| 2002 Chevrolet Silverado 1500 5.3L Battery VIN: 2GCEK19T32 Since we had a security lamp staying on, and no communication with the cluster we decided to pursue that first. All the connections to the cluster were good. (power, ground and buss lines) We got a new cluster installed it and were able to communicate with the... |
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| 2005 Chevrolet Tahoe LS 5.3L No Start, Stall VIN: 1GNEC13TX5 SO WE SUBLET THIS OUT TO HAVE THE PCM REPROGRAMMED. THE PCM DID NOT FIX THE CONCERN. THE SHOP THAT DOES OUR PROGRAMMING FOR US HELPED US OUT WITH A LITTLE ADDED DIAG. ON THIS HUNK OF JUNK. TURNS OUT IT WAS A SECURITY ISSUE IN THE BCM THAT WASN'T PRODUCING ANY ... |
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| 2007 Chevrolet Avalanche LTZ 5.3L No Drive Or 3rd VIN: 3GNEC12007 well well, turns out I got a defective forward sprag overrun clutch element. Replace it, ran like brand new. I did update the tcm software though. |
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| 2012 Chevrolet Express 2500 4.8L traction control VIN: 1GCWGGCA0C Thank you members for the insight of testing a wheel hub bearing that shows up on "live data". Indeed the 2wd hub bearing was bad. Installed the new unit; started the vehicle and the light was not even on. |
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| 2005 GMC Sierra 1500 4.3L No Start Thanks For All The Help, I Was Checking Spark At Coil, I Did Try A Different Coil, We Use Delco Parts At Our Shop. What I Found Was The White Wire At The Coil Was Broke At The Terminal Up Inside The Connector. When I Was Checking It I Was Pushing It Back Toget... Trouble codes: N0NE. |
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| 2003 Pontiac Montana 3.4L Starting VIN: 1GMDX03E33 Glenn from Texas got me to thinking to go back and go over and stress test the wiring and I got numerous wires to break when I pulled on them. We don't use butt connectors and solder all wires. I think I rushed job because of thanksgiving weekend and I did not... |
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