vortec

  1. davidavidd

    Summoning the geniuses of the forum: Problem accelerating from a stop / hill, engine stumble [updated]

    Hi TYF friends, I'm having a hard time finding a diagnosis for this problem on my Tahoe (2007, stock Engine 5.3, RWD, 218.000mi, 275/55/R20) so I humbly ask for your collective help, sorry for the long post: When accelerating from a stop the engine acts as if it freezes for 1 second, as if I...
  2. davidavidd

    Can anyone help me find out what happened here?

    Hi TY forum members happy new year from Colombia, long story below: I have a 2007 Tahoe, stock 5.3 engine (I've only added an oil catch can and transmission radiator), 180,000 miles with all the maintenance routines. Four days ago I did a little 300 mile round trip (mixed road between flat and...
  3. 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...
  4. YukonGTmaster

    5.7L Vortec Problems

    I was having a rough idle, and the Amber engine light would flash (Random misfire) when I started up in the morning. I would cycle the key off for ten seconds, the light would go out and I would drive to work. It was not latching any codes. I had a bad coolant leak as well. Then I started to...
  5. T

    Vortec 454 and 4l80e swap

    Hey yall I have a 1996 Chevy tahoe affectionately named tina the tahoe but I was wondering if anyone on here has ever done a vortec 454 and 4l80e swap I know the motor will basically bolt right in and wiring and fuel is pretty straightforward but I'm curious about trans cross member such as can...
  6. 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...
  7. MartyMcFLy

    Deciding on how to clean up rust (video included)

    I recently got a 2003 chevy suburban 2500 w/ the 8.1L vortec. One of the big deciding factors was the engine...it's hard to find nowadays and for cheap. Video: excuse the editing, I threw it together really quick. Anyway, it is pretty rusty underneath and on the rocker panels and rear quarter...
    • MartyMcFLy
    • Thread
    • 8.1l removal rust rusty sandblasting suburban vortec
    • Replies: 2
    • Forum: Exterior
  8. R

    5.7 Engine Misfire (P0300)

    Hello, I have a 2000 Tahoe z71 classic (2000 model year, 1999 body style) that I'm having a misfire issue on. It started as a P0303 code, now it's the random p0300. The issue isn't constant, but seems to be more pronounced if I'm going uphill and I'm light on the throttle I'll get a vibration...

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