5.3

  1. Evildmanarc

    2001 Tahoe LS 4x4 build

    So just a little bit about my tahoe: it started out life in Texas where it was assembled. It must have lived life around there for quite some time due to the lack of rust before whoever had it decided to trade it in or what have you, because she ended up in Michigan for a while then came into my...
  2. Project Denali

    Build thread: Project Redfire

    Hey family, I was in the market for a truck and had been looking very hard for just over two weeks. I made a list of what I really wanted and stuck to it. Boy did I get more than I was hoping for! This beautiful 2003 Tahoe LT popped up for sale in West Virginia and after almost a week of...
  3. Police428

    Best Tuner for ‘04 Yukon 5.3(L59?)

    I just recently got into the sound of preformacne with these body styles of GMC/Chevrolet/Cadillac. After reading up on them and seeing the potential of the 5.3L V8. I want to get mine tuned, as I have already got a Flowmaster cat-back exhaust, and a K&N cold air intake. To me I want more out of...
  4. clemenshess97

    intake manifold noise

    Hello everybody, the last couple of weeks I noticed that I have a strange whistle sound coming from my engine, my first guess was the serpentine belt, but replacing the main belt didn't help, I took off the main belt and the AC compressor belt and let the engine run for a few seconds to be...
  5. PatDTN

    2009 5.3 engine

    Removed and replaced with 6.2 due in part to mistaken fault diagnosis. Engine was running strong with 220k miles just prior to removal. I mistook loss of oil to be failed AFM and bought a replacement engine to swap in to minimize downtime. Issue turned out to be completely clogged exhaust due...
  6. Squirrelsmith

    LS swap is happening

    A good friend of mine has two identical drive by cable 5.3 ls engines. He is using one on his 85 silverado and asked if I would like the other for my 98 2 door. So I figured it's now or never! He is first rebuilding them both with stage 2 cams that add 100 hp so I'll be pushing 430 - 450. We are...
  7. Peter Tremonti

    AFM Issues / Misfire

    I finally got the the oxygen sensor holes plugged today. New front sensors, wrong rears arrived but still plugged the holes nicely (Only 1 sensor came with the vehicle when I bought it...) Now that the front sensors are reading properly, the P0300 fault is showing up along with the P0315 (P0315...
  8. C

    Vibrating/Grinding Noise from top of engine

    I have an 07 Tahoe 5.3L V8, and about a month ago I started noticing a quiet noise when slowing down to a stop, when the engine returned to idle, for a brief second it sounded as though maybe a pulley was bad or AC clutch not disengaging all the way. As two weeks passed, it started lasting...
  9. P

    2005 Suburban Z71..When to repower rebuild? Newbie

    Hello everyone! My ride is a 2005 suburban Z71 current odometer is around 183k. 20” 275/60’s, flowmaster exhaust, spectre intake installed. 2” leveling kit in the box and some 295/65/20’s on deck for summer. Classic rust in rear quarters and bumper which I have the replacements for. We are a...
  10. J

    Trailer brake controller - 2018 Yukon XL 5.3L

    hey all, while I’m 6,000 miles away, it’s tough to check so I’ll ask you. I know my Yukon has a 7-pin connector but does not have an integrated trailer brake controller. Is it a simple plug & play with an aftermarket TBC? IIRC, I don’t remember seeing any wires bundled under the dash near the...
  11. X

    Tahoe PPV Help & Suggestions

    Just got rid of my last toy because we just had a baby and the car seat wouldn't fit. Starting my search for a 2012 and up PPV in order to get the 6spd transmission(I know it came in 2011, but heard that there were some issues with that year and to focus on 12 and beyond). While I'm searching...
  12. OKYukon02

    2002 5.3 Crank appears to wobble at idle

    Greetings everyone, and happy Easter if you observe it! Just picked up another Yukon. Also a 2002 like my first. After taking off the splash shield to change the oil, starting it up and checking to ensure no leak, I noticed the crank pulley appears to “wobble”. I can’t tell if it’s an optical...
  13. OKYukon02

    Greetings from Southeast Oklahoma

    Hello everyone! Hope you're all having a great week so far. New to the SUV world. Have always loved he Suburbans, Yukons, Escalades, Tahoes... Just bought my first. It was too good to pass up! 2002 GMC Yukon XL SLT 4 wheel drive. 220,000 on the clock, full maintenance records in the console and...

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