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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 8, 2023
International Automotive Technicians' Network (iATN) - Members Only
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
2015 GMC Yukon SLT 5.3L Right Rear Turn Signal VIN: 1GKS2BKCXF
This vehicle has LED exterior lighting (RPO code X88) No output from BCM X4-4 to RR LED turn signal. No problem with LR (BCM X5-1). Input from R turn signal switch to BCM X3-24 good (same as L turn signal to BCM X3-12). Input from Hazard switch to BCM X2-2...

Fixes & Summaries for GM
Fix/Summary Answers
2015 GMC Terrain SLE 2.4L Excessive Emissions, Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: 2GKFLVEK5F
Thanks for all of the replies, this car ended up having a defective High Pressure Fuel Pump. Customer had it done at another shop, so he went and got a replacement one that we installed for him. Started and runs good, problem gone. It was a delphi pump.Thanks ...
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