GM Truck Club
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 6 of 6
  1. #1

    Default 97 Yukon Radiator Flush

    I am trying to save some money and wondering if anyone has any knowledge and instructions on how to do this. I've watched videos on utube but nobody has done a 1997 Yukon. Any help and instruction is welcomed.

  2. #2


    They all work the same way. Get a Prestone flush kit, and go for it. As a word of warning, I have on good authority that the flush will likely take the seal out of your water pump.
    When you hear hoofbeats, look for horses not zebras.

  3. #3


    The out of the water pump? That $90 flush sounds pretty good now.

  4. #4
    Master Mechanic Dr_Zero's Avatar
    Join Date
    Mar 2006
    Sunny Florida


    I have always flushed mine every year or so and havent had any issues.

    Depending on the system it might be a good time to replace the hoses and thermostat also if the system has been neglected it could be full of sludge and scale.
    My trucks!

    1996 GMC Suburban SLT
    1997 GMC Yukon SLT

  5. #5


    I think the combination of a chemical flush on a neglected cooling system combined with a high mileage pump is probably when it's a problem.

  6. #6


    CLR in a 4:1 ratio following the same instructions on the prestone bottle works the same and cost $5 Just make sure U flush it out or it can eat more then calcium

    99 tahoe 2 dr. 4x4 7.4 4L80-e NP246, SAS, dana 60 hp, sterling 10.5 rear, gibson headers, and alot of tricks of the trade !!!!!!IF YOU'RE NOT CHEATING YOUR NOT TRYING!!!!!!!!

Similar Threads

  1. Radiator flush
    By Bobby1021 in forum General Chevy & GM Tech Questions
    Replies: 3
    Last: 01-22-2010, 06:59 PM
  2. need a flush floor
    By yoshi in forum Chevy Truck Accessories
    Replies: 2
    Last: 11-03-2009, 10:43 AM
  3. Transmission flush
    By Restlessone in forum GM Powertrain
    Replies: 19
    Last: 08-29-2009, 05:26 PM
  4. tranny flush
    By will454 in forum Chevy Suburban Forum (GMC Yukon XL)
    Replies: 7
    Last: 05-04-2009, 03:04 PM
  5. Transmission Flush
    By bzboardco in forum General Chevy & GM Tech Questions
    Replies: 5
    Last: 01-15-2009, 03:16 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts