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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 19, 2019
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Open Help Requests for GM
Help Request Answers
2010 Buick Allure CX 2.4L Power Reduced light VIN: 1G4GH5EC5A
The engine we put in ran smooth, no check engine light. My manager to it for a test drive, after a mile(?), the reduced power notice came on, as did the check engine light, showing codes P0089, and P228D. We replaced the direct injection fuel pump, didn't ... Trouble codes: P0089 (Fuel pressure regulator performance), P228D
2001 Cadillac Eldorado ESC 4.6L Remove & Instl VIN: 1G6EL12Y31
Vehicle came in with P0741 TCC code performance. Dealer replaced solenoid but no help. Our tech drove vehicle and could see a 250 rpm slip on the converter when lock-up up. Have seen this before, problem is definately the torque converter is slipping. Yes ...
2012 Chevrolet Silverado 1500 LT 5.3L ABS System VIN: 1GCPKSE75C
I have a 2012 Silverado 1500. Customer complaint is an ABS and traction control light. Scanning system reveals C0050 RR abs sensor plausibility code. All circuits tested good. Removing both ABS speed sensors revealed the RR tone ring is loose and spinning ...
2016 Chevrolet Silverado 2500 HD LT 6.0L Body module VIN: 1GC0KUEG8G
Keeps setting U0401 code in BCM have ran what little diagnostics there in Mitchell with no answer, also perfomed bulliten repairs with no fix, also reflashed ECM and BCM. Code is U0401 symtom 71 invalid data recieved from ECM. Checked all communication wir...
2015 GMC Yukon XL Denali 6.2L electrical VIN: 1GKS2JKJXF
This truck has an electrical problem thats driving us crazy..Intermittently it will not start no power at push button, when it does start the dash gages will drop out, radio and hvac will not light up, had many codes stored in many modules, sometimes no co...
2015 GMC Yukon Denali 6.2L undercarraige VIN: 1GKS2JKJ8F
I have this car with a vibrating/scraping noise under slight load at 20 mph. the noise is loud in the rear drive shaft but lower in the transfer case. keep in mind we already changed 2 transfer cases(used with under 10 miles) and the rear diff unit new fro...

Fixes & Summaries for GM
Fix/Summary Answers
2009 Buick Enclave CXL 3.6L Stall VIN: 5GAER23D09
rechecked timing and it was off cams seemed in time with each other. Really had me guessing with having good compression and seemed to run smooth the few seconds it would run. Thank you all that gave advice very much appreciated Trouble codes: P0336.
2012 Chevrolet Equinox LS 2.4L Ebcm Pscm VIN: 2GNFLCEK7C
A new rear clutch control module fixed this. Special thanks to Danny Kern for a 2015 post on calibrating this module. His post answered what GM techline couldn't about numbers on a connector. Bill, I tried a hard reset many times with no luck. The only modul...
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