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Lost Oil Pressure
Boy’s 03 Denali 6.0 lost oil pressure at 235,000 miles. We tried the overfill the crankcase trick and that didn’t work. We found another engine with about 135,000. We resealed it buying all the special little tools and swapped it out. Runs like a top. We’re going to tear the other one down and...- mortten
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- Replies: 1
- Forum: Engine & Drivetrain
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Hydroboost
04 Yukon with hydroboost. There’s a hose that goes from the reservoir to a unit on the frame with an electric motor. What is that?- mortten
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- Replies: 1
- Forum: Engine & Drivetrain
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ABS RF wheel activation
Boy just picked up an 06 Yukon Denali. ABS and TC lights were on. Scanned it and had a RF Sensor circuit code. Found the sensor unplugged. Now it know why. Plugged it back in. No more codes. All sensors reading the same speed. When pulling away from a dead stop the RF activates. Let off the gas...- mortten
- Thread
- Replies: 6
- Forum: Engine & Drivetrain
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Heater issues
Not a Yukon but a 2014 Sierra. Guessing mostly the same. Has auto HVAC. Start the truck and after warmup heat works fine. After about 15 minutes air flow drops to almost nothing. I threw my scanner on it. No codes. Shut it down and let it sit 10 minutes and it works again after start up. Looking...
