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Professional Automotive Repair Technical Discussions for November 15, 2012 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2006 Buick Rendezvous CXL 3.5L Fuel Guage VIN: 3G5DA03L06 We have this Rendezvous that has issues with an erratic fuel guage. When it first came in it was all over the place. It was diagnosed as a bad fuel level sender. We replaced and it was better but still moved around. We reprogrammed the pcm for the erratic fuel... |
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| 2008 Cadillac DTS 4.6L MIL Lamp on VIN: 1G6KD57948 This appears to be a just a case of the pressure sensor zero point not being set. This is a foreign car to me as we repair mostly BMW, MB and Porsche. Can anyone tell me how to program the zero point as the live data is fo .21 with the purge line disconnected ... Trouble codes: P0454 |
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| 1999 Chevrolet Tahoe LS 5.7L 1-2solenoidvoltage VIN: 1GNEK13R7X setting po753,checked ingition switch good,checked 12v at solenoid good checked wire that controls solenoid good.computer is grounding when unplugged from trans.suspect computer??? |
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| 2002 Chevrolet Avalanche 1500 5.3L Instrument Cluster VIN: 3GNEK13T82 This truck came in with a cluster problem . We checked power and ground at the cluster and both were there so we tried a used cluster[was told that this vechicle didnt need to be flashed as it was too old] this cluster did the same thing. If i plug the scanner... |
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| 2004 Chevrolet C5500 Kodiak C5C042 6.6L limp mode VIN: 1GBE5C1114 hello to all members and hope all is well with everyone,got this c5500 that goes into limp mode right before 5th gear,the speedo dont work, so with the tech 2 hooked up and watching the speed sensor im doing 80 mph right before 5th gear so it governs it down,i... |
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| 2004 Chevrolet Silverado 2500 HD 6.6L No Start VIN: 1GCHK29204 Hello everyone and thanks for reading. Im in over my head here because a buddy that talked me into working on his duramax. I have a 04 Duramax that the customer drove in for a no start issue. He can start it by using starting fluid. Rail pressure mirrored the ... |
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| 2005 Chevrolet Aveo LS 1.6L Airbag Light VIN: KL1TD52665 I need to know how to reset airbag light on this model without using a scanner as I have completed the vehicle repairs but cannot read the codes or reset the airbag module. I went through this in 2008 with a 2005 Suzuki Aerio and there is a data connector that... |
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| 2007 Chevrolet Express 3500 6.0L rear heater/ac VIN: 1GAHG39U97 I am the third person to work on this van. I will do my best to explain the problems as i understand them. The rear actuator was a partial fix. After it was installed there was still no control of heat or a/c at the rear. You could change to heat or a/c by mov... |
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| 2007 Chevrolet Silverado 3500 Classic LS 6.6L Poor Idle Quality, Knock VIN: 1GCJK33D97 Hello all, need help with this diesel today. As stated above we changed the oil and filter along with a fuel filter yesterday and this morning the customer came in complaining about this problem and of course It was fine until it was brought here. I have what ... |
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| 2008 Chevrolet Silverado 1500 LT 5.3L Radio VIN: 2GCEK13398 This one has me stumped so some idea would be great. Visit # 1 Volt gage was going from 16v down to 10v and radio was reseting time or shuting down by itself. Found a bad Alt. and replced it. 2 weeks later custome returned complant was that volt gage still goi... |
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| 2009 Chevrolet Traverse LS 3.6L MIL Lamp on VIN: 1GNER13D59 Engine runs strong on acceleration, O2s go rich on VE run and truck pulls hard, VE results 93.668%, but this a variable cam engine so not sure if it's a good number. Scanner data indicated 100% on VE run. Code sets according to GM when ECM detects the MAF sens... Trouble codes: P0101, P2177 (Fuel trim lean bank 1 on cruise or accel), P2179 (Fuel trim lean bank 2 on cruise or accel) |
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| 2001 GMC Sierra 2500 HD SL 8.1L trans VIN: 1GTHK23G41 transmission has been scanned with a tech 2 for codes and relearn and had a update done at the dealer.when you drop it in gear it a bang.when it shifts it will hit hard but on time.3rd and 4th not bad.downshifts also hits hard coming down.atsg says line pressu... |
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| 2003 GMC Envoy XL SLE 4.2L No Start VIN: 1GKET16S93 Good Morning. This envoy VERY intermittently will not start and sets the four codes above afterwards. Never have I experienced the symptom or these codes while in our possesion. Anyone know of a common link that triggers this combination and symptom. Many tha... Trouble codes: U1000 (class 2 data malfuction), B2955 (Security system daya ckt), B2960 (Security System sensor incorrect but valid), B2961 (Key in ignition malfunction) |
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| 2011 GMC Savana 2500 4.8L steering VIN: 1GTW7GCA3B Hi every one.Hope you can help,I had this truck came in whit (the driver described) a vibration in the steering when applying the brakes at hi speed over 80 kms hr.Same complains before from this company on same trucks,because they load-up this trucks to the m... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1992 Buick Century Custom 3.3L Poor Idle Quality, Cuts out, Stall thank you everyone for your time! this vehicle is fixed. I came to work monday and had 1 delco reman pcm and 2 reman injectors. once installed, vehicle never missed a beat. idle was steady without surges or flair ups. no stumbles or stalls. fuel trims always w... |
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| 2005 Cadillac STS 4.6L right side valve cover VIN: 1G6DC67A95 Pulled right side cover again and found no broken springs, chains tight, dealer stocked lifters so took that as a sign that it was worth trying, replaced right side lifters and engine quiet now, did not suspect chain due to noise was from rear of valve cover a... |
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| 2004 Chevrolet Classic 2.2L Remote Keyless Entry Thanks for the replies. Now I know where the module hides. The customer is content to do without the fobs for now. I explained that I'd warranty the BCM if that's what it took, but the system [...] be dealer installed and suggested they contact a GM dealer who m... |
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| 1999 Oldsmobile Silhouette Premiere 3.4L Gear VIN: 1GHDX03E1X Thanks for replies,but fault lies in that someone opened this request and it was not me!! Thanks to a great group!!! (I hope whomever opened this,that they have their answer.) Time to change passwords. |
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| 2003 Oldsmobile Alero GLS 3.4L No Start VIN: 1G3NF12E13 Well we will call this one fixed. Found that the A/C clutch relay would hang up at times. Still does n't make total sense in my mind. But replaced relay and everyting works customer took car a week ago. reported back yesterday at all is good. Thanks to all tha... Trouble codes: B1374 (Divice ignition 1 circuit open). |
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