1999 Ford Contour engine cooling issue

Tiny
NAHAN L
  • MEMBER
  • 1999 FORD CONTOUR
  • 2.0L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 71,000 MILES
I own a 1999 Ford Contour se I recently had a blown head gasket replaced head gasket timing belt water pump thermostat housing thermostat temp sensor o2 sensors valve cover gaskets basically tore apart and rebuild except for rings and pistons and lower bearing stuff upon a nature. After running the car for awhile at least half hour the temperature gauge barely read above cold used an infrared thermal gauge and the radiator hose Read hundred ninety five degrees the radiator itself read 195 degrees the thermostat housing reads 195 degrees the engine block reach 220 but the fans never kick on and the water never transfers from radiator to engine engine to radiator I did however remove the coolant reservoir cap and it seemed to release of vacuum allowing the water transfer into the reservoir and the fans to kick on I replaced the reservoir cap but still seem to have the same issue I did use a ohm meter and I do have resistance to the sensor I have resistance through the sensor plug I have a brand new thermostat twice still not 100 percent sure what my issue is but when I did release the pressure in the reservoir the temperature gauge did rise as the coolant transferred from the engine to the radiator and to make sure I clarify I do have heat the heater works great
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Thursday, February 13th, 2014 AT 5:41 PM

3 Replies

Tiny
HMAC300
  • EXPERT
Groundout the coolant sensor if the gauge goes to high it amy be a sensor or wiring gissue.
Temperature F ( C)(2) Volts(3) Ohms
50 (10)3.5158,750
68 (20)3.0737,300
86 (30)2.6024,270
104 (40)2.1316,150
122 (50)1.7010,970
140 (60)1.337600
158 (70)1.025370
176 (80)0.783840
194 (90)0.602800
212 (100)0.462070
230 (110)0.351550
(1)Values may differ by as much as 15 percent. For additional testing, see TEST DA under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V article.
(2)Measure by backprobing signal circuit to ground.
(3)Measure resistance between sensor terminals.
Temp left then ohms far right that is what it should be if the sensor is good. The gauge could just beoff as well if you have heat don't worry about it.
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Friday, February 14th, 2014 AT 8:17 AM
Tiny
NAHAN L
  • MEMBER
Thing tested good I still am having the issue with the coolant transferring normally while I am running it the fans never kick on and this concerns me. I fear it will lead to a head gasket blowing again as I stated in my post everything seams to work except the temp gauge it I pull the temp sensor plug the fans kick or if I remove the cap they kick on but that's the only time not sure where to go from here
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Friday, February 14th, 2014 AT 5:19 PM
Tiny
HMAC300
  • EXPERT
Keep in mind that fords were notorious for nteh temp gauge not working that well if everything checks out ok then it may be the dash or a wire h itting someplace that has broken or chafed. Check the things tha ti've pointed out in pics for your cooling fans as these may be the cause of not working. Also what temp t stat was installed your temps seem about right but it shold be a 195 tstat in it. I kinda think your gauge is off and has been for a long time but since the head gaskets were blown you are thinking it bad now.
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Saturday, February 15th, 2014 AT 5:58 AM

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