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Professional Automotive Repair Technical Discussions for May 23, 2017 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2007 Chevrolet Cobalt LS 2.2L long crank/start VIN: 1G1AK55F57 This one has a very long crank before it finally starts. when it does start it runs a little ragged but in about 15 seconds smooths out and idles fine. CEL is off but code p0315 is stored and will reset when cleared. One of the first things I noticed is no tac... Trouble codes: P0315 |
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| 2008 Chevrolet Silverado 1500 LT 5.3L No Start VIN: 3GCEK13J78 after installing engine,extended crank..eventually will start,code 335...scanner shows no engine speed rpm,and tach not working..but can see cam and crank rpms on scanner..cant do a relearn because of no rpms readings.checked all grounds...car runs perfect whi... Trouble codes: 335 (Crankshaft circuit) |
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| 1998 GMC C1500 Sierra SL 5.7L MIL Lamp on VIN: 1GTEC14R7W Hi there, I have a 1998 chevy 1500 5.7L came in with a p0446 so I went and had the check valve and the tank pressure sensor replaced. customer left 2 weeks later it cam back with a p440 code smoke it and found a leaking hose from charcoal canister to fuel tank... Trouble codes: P0440 |
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| 2005 GMC Sierra 1500 SLE 5.3L Over Heating VIN: 2GTEK13T15 Vehicle came in with an extreme overheating condition. Customer had removed thermostat in an attempt to eliminate that. I installed a new t-stat and burped the cooling system. Vehicle overheated rather quickly. I performed a block test and found it failed. Rem... |
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| 2009 GMC Yukon Denali 6.2L No Start VIN: 1GKFK032X9 This Denali will not crank over and I have no communication with the scan tool. Check all fuses, power and grounds. Started disconnecting modules and when EBCM was disconnected I got scanner communication and vehicle started. Put a used EBCM in it and same iss... Trouble codes: U0122 |
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| 1994 Pontiac Grand Prix SE 3.1L window switch VIN: 1G2WJ52M8R I bought a replacement driver window switch module Standard Motor Products DS-2141 but it doesn't work on my 1994 Grand Prix SE 3.1l 4-door sedan. I need a electrical diagram for the vehicle and the pinout labels for the Standard Motor Products DS-2141 switch. |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2002 Buick Rendezvous CX 3.4L Monitor VIN: 3G5DB03E72 I would like to thank everyone for their help. Unfortunately the problem persists. I have tried all of the drive cycles posted and many other things. I have tested the AIR pump output, the vacuum solenoids, made sure the tubes were clear. I tested the output a... |
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| 2008 Cadillac CTS 3.6L MIL Lamp on VIN: 1G6DT57V58 Thank you for your help those who spent the time to respond. We have installed new chains and tensioners on this caddy and i will be uploading the know good wave form asap. Once again thank you for you assistance. |
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| 1986 Chevrolet K5 Blazer Silverado 5.0L convertor/flywheel VIN: 1G8EK18H2G Thanks for all the info. I would have posted fix sooner but we closed before I could get back on here. I pulled the transmission Saturday and found flex plate cracked, almost all the way around center bolt holes. Thank God I took it down then because I had a l... |
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| 2007 Chevrolet Trailblazer LT 4.2L MIL Lamp on VIN: 1GNDT13S87 A new timing chain fixed this one. Read on for some helpful information. I forgot to mention that we had energized the solenoid and verified that it and the sprocket were working. We looked closer at the cam and crank patterns and, after comparing them to a kn... Trouble codes: P0017 (Ckp to exhaust cmp correlation). |
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