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Recent content by csmpez
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2017 GMC Yukon Denali Transmission / Throttle Nightmare
It started with the transmission shutter... that was really bad. After the transmission fluid and valve body replacement (this was done twice), it started this crazy behavior with the revving and "neutral dropping" into first gear scenario. Dealership had our yukon towed to them with a loaner...- csmpez
- Post #3
- Forum: Engine & Drivetrain
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2017 GMC Yukon Denali Transmission / Throttle Nightmare
Back in 2020, our 2017 Yukon Denali with the 8-speed transmission started to shutter badly like others here. We took it into the dealership for service where they replaced the transmission valve body. After getting our yukon back, we started to experience a throttle/transmission issue. For...- csmpez
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- Replies: 3
- Forum: Engine & Drivetrain