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  • Jeep Compass overheating

    From Tom Del Rosso@fizzbintuesday@that-google-mail-domain.com to rec.autos.tech on Wed Nov 12 04:32:20 2025
    From Newsgroup: rec.autos.tech

    2014 Jeep Compass overheats (red light) if it goes gradually uphill for
    a long time, like driving away from the coast. On the return trip
    downhill it doesn't happen.

    Turning the heat on brings it down very fast. Is that just because of
    where the sensor is, or is it really cooling the engine coolant?

    Does all this point to the need for a radiator flush or what?
    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From Paul in Houston TX@Paul@Houston.Texas to rec.autos.tech on Wed Nov 12 12:26:03 2025
    From Newsgroup: rec.autos.tech

    Tom Del Rosso wrote:
    2014 Jeep Compass overheats (red light) if it goes gradually uphill for
    a long time, like driving away from the coast. On the return trip
    downhill it doesn't happen.

    Turning the heat on brings it down very fast. Is that just because of
    where the sensor is, or is it really cooling the engine coolant?

    Does all this point to the need for a radiator flush or what?

    Things to check. First one first:
    Radiator fins clogged with dirt and debris.
    Thermostat may not be opening all the way.
    Radiator fan (or fans) may not be turning on.
    Temp sensor (or sensors) may be going bad.
    Hoses may be collapsing.
    Cooling systems rarely clog up, unlike in the old days.
    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From The Real Bev@bashley101@gmail.com to rec.autos.tech on Thu Nov 13 14:32:48 2025
    From Newsgroup: rec.autos.tech

    On 11/12/25 10:26, Paul in Houston TX wrote:
    Tom Del Rosso wrote:
    2014 Jeep Compass overheats (red light) if it goes gradually uphill for
    a long time, like driving away from the coast. On the return trip
    downhill it doesn't happen.

    Turning the heat on brings it down very fast. Is that just because of
    where the sensor is, or is it really cooling the engine coolant?

    Does all this point to the need for a radiator flush or what?

    Things to check. First one first:
    Radiator fins clogged with dirt and debris.
    Thermostat may not be opening all the way.

    Maybe one of the easier fixes. It's amazing how far you can throw a malfunctioning thermostat when you really want to.

    Radiator fan (or fans) may not be turning on.
    Temp sensor (or sensors) may be going bad.
    Hoses may be collapsing.
    Cooling systems rarely clog up, unlike in the old days.
    --
    Cheers, Bev
    "By the time they had diminished from 50 to 8, the other
    dwarves began to suspect 'Hungry.'" -Gary Larson
    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From Tom Del Rosso@fizzbintuesday@that-google-mail-domain.com to rec.autos.tech on Thu Nov 13 21:28:52 2025
    From Newsgroup: rec.autos.tech

    On 11/12/2025 1:26 PM, Paul in Houston TX wrote:

    Things to check.-a First one first:
    Radiator fins clogged with dirt and debris.
    Thermostat may not be opening all the way.
    Radiator fan (or fans) may not be turning on.
    Temp sensor (or sensors) may be going bad.
    Hoses may be collapsing.
    Cooling systems rarely clog up, unlike in the old days.

    Thanks!

    --- Synchronet 3.21a-Linux NewsLink 1.2