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Thread: Thermostat problems!!!!!!!!!

  1. #1

    Smile Thermostat problems!!!!!!!!!

    My 2002 Silverado - DM (189K) started to spit out coolant as soon as I switched it off. People came after me and said "Your truck is leaking"
    Observing the temp gauge jerking up to above 100C then down to 75 and back up again I decided to change the two Thermostats.
    A piece of cake! (Well done DURAMAX Engineers!) A 2 hour job,drain, refit, refill, run up to temp and blead air.
    RUNS LIKE NEW / NO LEAK's / NIECLY CONTROLS TEMP AROUND 90C
    COST $62.00CAN
    Great,ehhhhhhhhh

  2. #2
    Join Date
    Mar 2000
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    Loyal WI US
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    10,792

    Default

    Boy I hope that's all it is, but it's hard to believe that it's fixed that simply. If it was summer and you were running hot enough to boil I might buy that.
    Kennedy Diesel-owner
    More than just a salesman-I use and test the products that I sell on a daily basis!
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  3. #3
    Join Date
    Feb 2000
    Location
    Montana
    Posts
    11,382

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    I agree with Kennedy. GM used two thermostats, in part, to provide redundancy. Unfortunately, most cooling system over-pressure or coolant loss problems are due to either injector cup seals (only the LB7) or head gasket leaks.

    Jim

  4. #4

    Default

    I never heard of a truck doing what you described. How is it running now?
    [CENTER][FONT=Comic Sans MS][COLOR=red]04' Dmax [EMAIL="11.44@121"]11.44@121[/EMAIL] on #2 only 791rwhp[/COLOR][/FONT][/CENTER]
    [CENTER][FONT=Comic Sans MS][COLOR=#ff0000]3rd place super street NHRDA AZ nationals 3-6-10[/COLOR][/FONT][/CENTER]
    [CENTER][FONT=Comic Sans MS][COLOR=#ff0000]1st place modified Dyno AZ nationals 3-6-10[/COLOR][/FONT][/CENTER]
    [CENTER][FONT=Comic Sans MS][COLOR=#ff0000]1st place Diesel Wars drags 3-20-10[/COLOR][/FONT][/CENTER]
    [CENTER][URL]http://www.youtube.com/watch?v=qz7u-auSEv8&feature=player_embedded[/URL][/CENTER]
    [CENTER]^^11sec video^^[/CENTER]

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