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  1. #11


    mmine passed with 310,000+ miles and the tech said it was going to fail right off the bat so he cut the final somg check price for being way wrong.....not bad for a 93 vehicle....mike
    Michael Collins
    1993 4X4 Suburban
    many other toys as well

  2. #12
    Sr. Apprentice
    Join Date
    Oct 2007
    Houston, TX

    Thumbs up

    When I took our 1990 GMC Suburban(329,000 miles) in last time, the tech said that it looked as though it was going to fail, but when he revved it up a bit, it passed. He told me that the blended gasoline with ethanol made a big difference with these engines, (5.7L) and suggested that before I bring it in to get inspected the next time, that I run at least one tank full of pure gasoline, not that blended ethanol stuff.
    1990 GMC Suburban 329,000 miles

  3. #13
    Legend unplugged's Avatar
    Join Date
    Sep 2006
    High Deserts of SoCal


    Whooee! Ran it through the Cajon Pass HP test and it ran great. Before the cat back / magnaflow I could not use the cruise control to climb the 4% grade. It would start to slow, then the cruise would drop out. This time I set the cruise for 70mph and rode it all the way to the top without missing a beat.
    There is no way to happiness....happiness is the way.:yipi:  _vXMYypuKMJFw671uF2ZPhjez_j-atRmcjM2zQKpQi1JSsB75/burb1.JPG
    High Desert SoCal
    93 K1500 burb (personal) 350 AT 3" Lift 250K+
    02 Honda Civic LX
    Looking for a 1990's Miata for an engine swap

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