Discussion in 'GM Powertrain' started by chevy country, Jul 27, 2011.

  1. chevy country

    chevy country New Member

    if im in stop and go traffic my 05 silverados temp starts to rise, but if im cruising down a highway its fine. any help?
  2. silveradotrailblazer

    silveradotrailblazer Epic Member 5+ Years ROTM Winner 5000 Posts

    Have you checked to see if your electric fans are turning on?
  3. dsfloyd

    dsfloyd Epic Member 5+ Years ROTM Winner 1000 Posts

    check that and also check the t-stat. similar problem in another car that i had and t-stat was problem.
  4. chevy country

    chevy country New Member

    how do i check that?
  5. dsfloyd

    dsfloyd Epic Member 5+ Years ROTM Winner 1000 Posts

    I'm sure there is a better way but one way is after driving and you see the temp getting hot like you explained if you are in a place you can pop the hood and see if they are on. they are set to come on at a certain temp. like I said I dont know any other way (my truck has the clutch fan). I can usually hear them in my two cars that have e-fans
  6. LoneWolf'burban

    LoneWolf'burban Rockstar 100 Posts

    This is outside of a fan problem. Have you changed from the red coolent yet? With the motor cool take off your radiator cap and look for gunk build up. The thermostat could be clogged up not letting it open or close all the way. I had a Chevy 305 that was missing the thermostat completely and it never got hot on the highway but was hurting in stop and go traffic. Coolent wasn't in the radiator long enough too cool down and coolent in the motor wasn't there long enough to absorb heat and pull it out of the motor. Make sure your sensor is working right and flush the coolent system and if that doesn't fix it, replace your thermostat. Almost forgot, the red coolent led to a massive recall due to it's corrosive attributes on intake manifolds and gaskets. Some vehicals may still be covered for repairs on this.
    Last edited: Sep 4, 2011

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