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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 5, 2020
International Automotive Technicians' Network (iATN) - Members Only
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1994 Buick Roadmaster 5.7L No Start VIN: 1G4BN52P8R
Helping a fellow tech working on his moms old Roadmaster. Very clean car. Has had this intermittent starting problem for awhile, but last year finally went to full time no start. Tech replaced several pieces including opti-spark, coil, ignition module and ... Trouble codes: 36 (OPTICAL RESOLUTION HIGH short to voltage)
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2015 GMC Yukon Denali 6.2L Poor Idle Quality, Cuts out, Misfire VIN: 1GKS2CKJ1F
Truck came in with misfire on #4. Found broken push rod and stuck afm lifter. Replaced all afm lifter and broken pushrod, and had head checked and cleaned at machine shop since they were off. Put everything back together and truck started up hard. When fin... Trouble codes: P228D
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Fixes & Summaries for GM
Fix/Summary Answers
2005 Buick Rendezvous CXL Plus 3.6L MIL Lamp on VIN: 3G5DA03755
Unfortunately I may never know what the problem was with this vehicle. The customer took the car and was going to bring it back in several days later for us to try some things, possibly battery disconnect, possibly reflash, etc. The customer came back 3 days...
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