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  1. I

    Another P0300

    So its cold and snowy where I live so I've kinda back-burnered this. But I was thinking... My driver's side motor mount is shot. Could a little bit of clunking of that motor mount trip the knock sensor, causing some of this surging?
  2. I

    Just had my 6l80 in my 2019 Yukon rebuilt .98k miles. Wondering if I got taken to the cleaners on the build.

    I paid $4600 back in the summer for a total rebuild on my 2020.
  3. I

    Another P0300

    That's a good idea. I had a Buick that had the MAF completely fail. Wouldn't run. Unplugged it and it went into a 'safe' engine map and ran fine.
  4. I

    Another P0300

    I did check my MAF sensor, didn’t see any dust or buildup on it. I hit it with a little canned air just to be sure it was clean, put it back, still runs the same.
  5. I

    IS AFM DISABLEMENT NECESSARY??

    I drove a 2013 Silverado for 3 years and about 75,000 miles with a disabler. Maybe more. Then when they lifter noise got too excessive, I did a full-on AMF delete with a new cam and lifters. Never missed the AFM either way.
  6. I

    Rear window washer

    I've never noticed anything on the ground, but I'll check it out. Does the washer line run on the bottom of the vehicle?
  7. I

    Rear window washer

    When I got my 2020 Tahoe, everything worked. Somewhere in the last 3+ years, the rear window washer quit working. Front windshield washer still works, rear wiper still works, rear washer pump runs when turned on, no washer fluid comes out. Ideas?
  8. I

    Another P0300

    Fuel pressure: 40-50 psi Fuel rails: 450-600 psi
  9. I

    Another P0300

    I have a 2020 Tahoe LT, 5.3 Flexfuel, 110,000 miles. It has a stored P0300 code. This code was set during a hard acceleration event (merging on an on ramp). Engine backfired, lost power, engine light came on and was flashing. I let off the gas and everything returned to normal. Engine light...
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