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Discussion in 'Technical Chat' started by kayakingguy, Jul 28, 2017.

Page 3 of 3
  1. Aug 9, 2017 at 5:40 PM
    #41
    kayakingguy

    #41
    kayakingguy [OP] Ask about my custom truck detailing!

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    OutsidaTampa
    It runs cool 99% of the time, then one percent of the time, usually at sustained highway speeds the gauge goes up to 3/4 temp, then revving the engine brings it back down.

    Far as I know the most affordable way to test for a head gasket/head crack is to pressurize the cooling system and see if it holds?
     
    kayakingguy, Aug 9, 2017
    #41
  2. Aug 9, 2017 at 6:13 PM
    #42
    07 sport 4x4

    #42
    07 sport 4x4 Well-Known Member

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    Have you made sure the condenser isn't clogged up? We had a dodge that was getting hot on the highway, the radiator and condenser were clogged up with grass seeds from driving around in a field. Yeah you could pressurize the system and see if it holds. A leakdown test would tell you as well. A compression test would catch it if it's leaking fast enough.
     
    07 sport 4x4, Aug 9, 2017
    #42
  3. Aug 10, 2017 at 11:44 AM
    #43
    Taco TRQ

    #43
    Taco TRQ Well-Known Member

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    Key question: Are you losing any coolant or water from the radiator? (not the overflow tank). No lost coolant = blown head gasket unlikely.
     
    Taco TRQ, Aug 10, 2017
    #43
  4. Aug 10, 2017 at 1:25 PM
    #44
    Taco TRQ

    #44
    Taco TRQ Well-Known Member

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    Key question #2: Are you determining the temperature strictly via the factory gauge?
     
    Taco TRQ, Aug 10, 2017
    #44
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