Mechanics

FORD ESCORT THERMOSTAT PROBLEM

1999 Ford Escort • 150 miles

Have new radiator, new coolant, new thermostat, new hoses, car runs normally MOST times temperature guage registers around 11: 30(12 o'clock being straight up)sometimes while driving around 60 MPH the temperature guage needle will swing nearly over to the red, without slowing down the needle will hover close to the red then start dropping to its normal level. Heat is normal no loss of fluid car runs great
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Ldsteff
November 25, 2012.



Have a leak down test done to verify blown head gasket.

Roy

ASEMaster6371
Nov 25, 2012.
When the last time you have replaced the thermostat? Don't recall -replace it and then report back-possibly an out of calibration coolant temperature sensor or the gauge itself-

Rasmataz
Nov 25, 2012.
Roy, sorry didn't see you in there

Rasmataz
Nov 25, 2012.
Coolant temperature sensor was replaced when the thermostat was replaced, the head was replaced with new gaskets 15,000 miles ago. Could it be a faulty fan motor or possible fan relay?

Tiny
Ldsteff
Nov 25, 2012.
That's easy to observe-check if both fan for the radiator and condenser if its coming on while Ac is On-Again I still say recheck the thermostat-it controls the engine temperature and the CTS reads it

Rasmataz
Nov 25, 2012.