 Prev |
Professional Automotive Repair Technical Discussions for April 4, 2018 International Automotive Technicians' Network (iATN) - Members Only |
Next  |
| (Also Available: All, Asian, Chrysler, European, Ford, GM.) | ||
| Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder. | ||
Open Help Requests for GM
| Help Request | Answers | |
| 2009 Buick Enclave CX 3.6L Misfire VIN: 5GAER13D09 Car has misfires on all cylinders under slight load about 1800 rpms. Scan data shows ckp glitching all over the place. Scope pattern looks perfect. Supply fuel pressure looks good. Ignition patterns look good. Cam/crank looks good. NO CODES. Anyone been here b... |
View | |
| 2006 Chevrolet Express 3500 LS 6.0L Misfire, MIL Lamp on VIN: 1GBJG31U56 at highway speeds scanner indicates misfires on all 8 cylinders even though it seems to be running fine and no miss is evident during misfire counters going up. Have check O2 operations and fuel output, new ignition parts, multiple relearn attemps with crank ... Trouble codes: P0300 |
View | |
| 2007 GMC Sierra 1500 WT 5.3L 1-2 Shift VIN: 2GTEK13MX7 Customer complains of harsh 1-2 shift. It only occurs under very light throttle at lower speeds. Transmission fluid quality and level seems ok. no trouble codes are stored. Under normal acceleration it does not act up, only in cases like stop and go traffi... |
View |
Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2011 GMC Acadia SLT 3.6L fuel injector VIN: 1GKKVSED4B A heartfelt appreciation to all the techs who responded, Thank You! The issue was traced to the PCM connections, specifically the process used to initially identify the correct wiring to the injectors. The tool used was just a little too large and caused sprea... |
13 | |
| 2005 Pontiac Vibe 1.8L engine output Well in closing I have replaced pcm in an attempt to improve vvt operations. Seemed as pulse width was kinda sporadic on when it worked. Got a little more consistent with cam degrees up to 4 degrees. According to service information every degree is actually 5 ... |
11 |
