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Professional Automotive Repair Technical Discussions for May 8, 2017 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 Monitor VIN: 3G5DB03E72 Have been trying to smog this Buick for 3 weeks, but the AIR monitor will not set. All other monitors set (except Evap). In California, only the EVAP monitor may be outstanding. The SUV starts, runs and drives perfect. Tested the ETC, IAT, MAP, MAF. New O2 se... |
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| 2010 Buick Enclave CXL 3.6L steering pump VIN: 5GALRCED5A Hey guys i need some guidance on this one. Customer brought this enclave in saying there was a whining sound when started after it had been parked for a few hours. Complaint was confirmed as it had a power steering pump noise for about 30 seconds then it gets ... |
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| 1999 Chevrolet K1500 Suburban 5.7L MIL Lamp on VIN: 3GNFK16R2X light on p0171, p0174 adding 25 % both banks at idle. adding 18% both banks at cruise. 60 psi fuel pressure. new mass air flow. smoke test found no vac leaks. if i add carb cleanner o2s respond and fuel trims drop. cleaned fuel injectors with top engine cleane... Trouble codes: P0171, P0174 |
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| 2011 Chevrolet Silverado 2500 HD LTZ 6.6L Cuts out VIN: 1GC1KYE88B According to the customer while driving the ignition power is lost and the engine stalls with no ingition lights coming on the dash, customer selects neutral and cycles the key and starts the car without having to pull over. This is a intermittent problem an... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2004 Cadillac CTS 3.6L No Start VIN: 1G6DM57724 I appreciate all the replies confirming what I think I already knew. The PCM (and used PCM's) were all faulty. Got a new PCM and installed and programmed. Verified it was going into sleep state and as soon as key was cycled DIM sent the wake up message and PCM... Trouble codes: U0100 (Lost Communication With PCM), U1000 (Class 2 Problem), U1016 (Loss of Class 2 with PCM). |
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| 1969 Chevrolet Camaro Z28 4.9L Hesitation, Stall VIN: 124379N558 WOW, what an overwhelming response. Lots of Z28 specialists on IATN. Thanks to all. Sorry to take so long to close. Had to work on some customer's cars. I'll cut to the chase so you don't have to read this entire "article" unless you want. The final timing set... |
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| 2009 GMC Yukon Denali 6.2L Transmission VIN: 1GKFC032X9 Thanks Everyone for the replies. According to my symptoms I had the only thing that made sense was a valve body issue. Michael [...] nailed it on the head. Pulled the valve body and found check ball stuck in separator plate on the Drive 1-6 and Drive B fluid p... |
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