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post #1 of 6 (permalink) Old 08-14-11, 07:19 PM Thread Starter
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99 Cougar Overheating 2.5 174000 miles

I bought a 99 Cougar yesterday. Took it for a test drive and totally looked it over including looking at all the fluids and checking to see if it was running hot or anything. Took for a 30 min test drive with NO PROBLEMS at all.

I buy the car for 1300 it is a sharp looking car well taken care of at least it appeared.

This is what happened .... I have about a 80 mile ride home at about 40 miles into the trip I notice the temp gauge gettn hotter and hotter and finally hits the red so I pull right over let it cool and check water and when it cooled about to the middle I figure lets try it and see what happens....Now it took about 1 minute to get into the red.Im hoping it only the thermstat at this point....I wait for it too cool even longer and it needed watwer this time it seems its boiling out of the filler area.

I drive to advance now it was about 2 minutes away.I buy thermastat and change it in the parking lot.add fluid and start heading home...The car made it home without getting all the way into the red BUT it was sneaking up close a couple of times it was making all kinds of gurgling and the low coolant light came on.I added fluid and thats where im at now.

There is no milky oil or oil in the water the previous owner says the water pump was replaced a year ago and it still looks new.There is also no water coming from the tailpipe.

What is going on ? Why is the water boiling out ?I dont see any other leaks or anything. Please Help me diagnose whats up with this car.I was hoping to drive it lol.Thanks ahead of time for your help

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post #2 of 6 (permalink) Old 08-15-11, 08:09 AM
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Re: 99 Cougar Overheating 2.5 174000 miles

Make sure the cooling fans are kicking in . Could flush cooling system out and bleed same .Maybe a partially blocked radiator .
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post #3 of 6 (permalink) Old 08-15-11, 08:38 AM
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Re: 99 Cougar Overheating 2.5 174000 miles

A slow heating problem is usually a flow problem. Could be a plugged radiator or not enough flow through the fins.

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post #4 of 6 (permalink) Old 08-17-11, 07:58 PM Thread Starter
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Re: 99 Cougar Overheating 2.5 174000 miles

My Low coolant light is on even when I top it off.as long as I constantly add water this car running perfect lol.Boiling out of tank still.Going to flush rad in the next day or two
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post #5 of 6 (permalink) Old 08-18-11, 02:39 AM
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Re: 99 Cougar Overheating 2.5 174000 miles

Low coolant light could be faulty sensor . You might have to get a block test carried out if other suggested checks dont work out .
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post #6 of 6 (permalink) Old 08-25-11, 12:28 AM
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Re: 99 Cougar Overheating 2.5 174000 miles

Maybe the radiator cap isn't holding the correct amount of pressure.
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