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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 15, 2020
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Open Help Requests for GM
Help Request Answers
2010 Buick LaCrosse CXL 3.0L Engine VIN: 1G4GD5EGXA
Car came in with P0016, P0017 and P0172. Changed all timing chains and cam actuators for both cams on bank 1 after using scan tool to actuate both the solenoid and then cam actuator. Was able to clear code long enough to perform test. Data pid for exhaust ...
1998 Chevrolet K1500 Suburban LS 5.7L 4x4 VIN: 3GNFK16R4W
4wd drive high will engage, 2wd and auto will engage, go to put vehicle in 4 low encoder motor engages then cycles and defaults back to 4 high, checked power and grounds and did have 5 volts at encoder motor. mode switch does light up and indicates 2wd and...
2006 Chevrolet Colorado LT 2.8L MIL Lamp on VIN: 1GCCS14866
This one is killing me (P0171). All issues are at idle, fuel trims are acceptable at cruise and under load -3 / 4 STFT and -3/ 3 LTFT. At idle the fuel trims will show 0 STFT and 5/ 8 LTFT at times which id not bad, but will intermittently go to 0/ 3 STFT ... Trouble codes: P0171 (Lean Bank 1)
2007 Chevrolet Express 2500 4.8L No Third Gear VIN: 1GCGG25V87
Hello fellow techs, Thanks for taking the time to read my call for help and responding. I'll start by saying I am not a seasoned veteran of transmission rebuilding but I know enough to get them done and make them function, so please bear with me if I'm ...

Fixes & Summaries for GM
Fix/Summary Answers
1997 Chevrolet Tahoe LS 5.7L No Start VIN: 1GNEK13RXV
Hi all. Thank you for all your replies. All were used but no results in the getting this Tahoe to run. Due to work load and holidays (and being this is my own vehicle and not a customers car) in the last month I have had little time for diagnosing this problem...
2008 Pontiac G6 3.5L chugs VIN: 1G2ZG57N48
We replaced the torque converter. The problem did not go away, it has lessened greatly. I can still get the car to act up, drive 50mph, slow to just above 40 and accell easily. Now it feels like a slight misfire, missing only once or twice as opposed to jer...
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