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1994 Ford Taurus Engine Temperature
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kheredia
New User
Jun 4, 2007, 6:18 PM
Post #1 of 4
(2773 views)
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1994 Ford Taurus Engine Temperature
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I have a 1994 Ford Taurus that is not cooling effectively. I have replaced a radiator, thermostat, and water pump over about a year's time but it still runs hotter than it should and does not cool well when driving. The water in the radiator's expansion tank gets hot enough to boil and when it circulates through the engine it is not cooling down before recirculating again. The fan is running properly too. Is there something other than the thermostat that controls when the water circulates or how it cools during circulation that could be my problem?
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jun 4, 2007, 7:47 PM
Post #2 of 4
(2770 views)
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Re: 1994 Ford Taurus Engine Temperature
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Check coolant at the radiator - it should be full there all the time. If it starts bubbling into the reservoir it could have way too much air in the system or a head gasket is allowing exhaust bubbles to get in and that prevents proper cooling.
Hope that's not it but check that the rad is full first,
T
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kheredia
New User
Jun 6, 2007, 4:10 PM
Post #3 of 4
(2765 views)
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Re: 1994 Ford Taurus Engine Temperature
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Thanks for the advice. I checked the radiator and cannot see water in there. There is water in the expansion tank though. Since you mentioned the dreaded head gasket thing, i also checked the oil and it is not looking milky. Wouldn't that also happen if the head was blown? I do not seem to be leaking coolant from the system either. Would you recommend a flush to make sure there is no air in the system? Is it possible that i could have a hole in a hose that brings air into the system but does not leak?
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jun 6, 2007, 8:21 PM
Post #4 of 4
(2761 views)
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Re: 1994 Ford Taurus Engine Temperature
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Unfortunately a head gasket can put exhaust into cooling system, or coolant into intake, or leak out oil or coolant or any which way. It's sealing all of them from each other.
Coolant in recovery tank and none in radiator is indicative of a leak and the system can't draw back into radiator when it cools down.
For now fill it up and just watch what happens. Does it start filling up the recovery tank right away. It normally would go up some and down some when hot or cold respectively. The radiator cap allow this if system is tight. Flushing system out won't solve this right away but could be something you would want to do.
Remeber that filling the cooling system full at the radiator and the recover tank to proper level doesn't mean all the air is out yet. You let it warm up and cool down a few times to purge out air and when you do that keep checking and filling the radiator while cooled down till it's always full. If you can't get it to do that there's a problem consistant with a head gasket failure -- sorry if the case -- they are costly,
T
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