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Professional Automotive Repair Technical Discussions for January 30, 2017 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2004 Chevrolet Trailblazer LS 4.2L Torque converter clutch VIN: 1GNET16S64 Thank you all in advance for any help. First of all let me state that I do work in a shop that is primarily a transmission shop but I am the diagnostic tech for every issue. I've only been working here for a year and transmissions aren't my strongest area of e... |
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| 2005 Chevrolet Tahoe LS 5.3L Head blots/threads VIN: 1GNEK13TX5 Hey everyone I am installing lifters in this truck. I am in the process of putting this back together. I have torqued the headbolts down once as follows 1)22 foot pounds, 2)90 degrees, 3)70 degrees. On the 70 degree step the three middle bolts under the valve ... |
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| 2006 Chevrolet Express 2500 4.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GCGG25V36 After engine swap vehicle road tested perfectly with no issues. verified fuel trims had returned to normal. Vehicle came in with same issue a week later, same cylinder for most part (cyl 7 almost constant dead miss). Sometimes misfire on counter increments on ... Trouble codes: P0300, P0171, P0174 |
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| 2006 Chevrolet Silverado 1500 LS 4.3L No Start VIN: 3GCEC14X66 Truck came in with no start.Had code PO341 CMP sensor circuit out of range.Check and test CMP sensor and no sensor signal..Removed cap and rotor and found cap got real hot and melted inside.Replaced cap,rotor and CMP sensor..Truck started hard like flooded out... Trouble codes: P0341 (Cmp sensor circuit out of range), P0335 (Ckp sensor a circuit problem) |
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| 2014 Chevrolet Impala LT 2.5L Screen/ Display VIN: 2G1115SL3E Hey guys have an impala that the radio/ info/ or telematics screen is blank/black. Have checked all fuses and double checked and ok, inlcuding radio fuse in left i/p panel area. Tried performing resets as a google search revealed its kind of a common problem a... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2000 Buick LeSabre Custom 3.8L Accessories VIN: 1G4HP54KXY Security light is back on. I will investigate this further when the customer's car is available. I will post results in the comments if we resolve the problem. Thanks all for offering help. |
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| 2008 Chevrolet Silverado 2500 HD WT 6.0L Hesitation, Surge, Misfire, MIL Lamp on VIN: 1GCHK29K38 Fix for this truck ended up being a new engine.As I mentioned truck was in a few months back with a noise in the cam and lifters.At that time there was no driveability issue and customer decided not to fix the noise.Some of you guys said the backpressure was t... Trouble codes: P0300, P1174 (fuel trim cylinder balancebank 1), P1175 (fuel trim cylinder balancebank 2), P2270 (O2 stuck lean [...] 2), P2271 (O2 stuck rich bank 1sensor 2). |
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| 2011 Chevrolet Aveo5 LT 1.6L Hesitation, Misfire, MIL Lamp on VIN: KL1TD6DEXB First thanks to the gentlemen who responded to my post. Timothy gave me a bit of information about the 2 different wiring diagrams, one showing 2 ic timing inputs and one showing 4. I'm still wondering how 2 ic timing inputs could control 4 coils I know thi... Trouble codes: P0300 (Missfires count up the most on cyl 3). |
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