Losing coolant did pressure test help - Ford Mustang Forum
 
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post #1 of 8 (permalink) Old 11-25-2013
00mustang95
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Losing coolant did pressure test help

Ok so i just purchased a 02 gt. In the last two days i lost half the reservoir of coolant. I decided to pressure test it and in the last hour it only dropped from 16psi to 15psi. i cant see any leaks. How can i be losing so much coolant but have the pressure not drop by much. what can it be.

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post #2 of 8 (permalink) Old 11-25-2013
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Check your oil. If it's milky or opaque you could be leaking at a head gasket.


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post #3 of 8 (permalink) Old 11-26-2013
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Check the reservoir cap !

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post #4 of 8 (permalink) Old 11-26-2013
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Originally Posted by Yadkin View Post
Check your oil. If it's milky or opaque you could be leaking at a head gasket.
oil is good however the car doesnt get to normal temperature. the needle sits between cold and halfway never reaching the halfway mark.
post #5 of 8 (permalink) Old 11-27-2013
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Quote:
Originally Posted by 00mustang95 View Post
oil is good however the car doesnt get to normal temperature. the needle sits between cold and halfway never reaching the halfway mark.
The temperature gauge is designed to read at just below 1/2 to indicate normal operating temperature. Try replacing the reservoir cap as GTRaptor has suggested.

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post #6 of 8 (permalink) Old 11-28-2013
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The temperature gauge is designed to read at just below 1/2 to indicate normal operating temperature. Try replacing the reservoir cap as GTRaptor has suggested.
would you think it may be the thermostat
post #7 of 8 (permalink) Old 11-28-2013
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would you think it may be the thermostat
Your thermostat would not cause a coolant loss if your temp stays on the "cool" side but a bad pressure cap sure will. It'll
blow it out while you are driving down the road if it can't hold the design pressure.
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post #8 of 8 (permalink) Old 11-28-2013
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Your thermostat would not cause a coolant loss if your temp stays on the "cool" side but a bad pressure cap sure will. It'll
blow it out while you are driving down the road if it can't hold the design pressure.
thanks ill make sure i change it asap
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