cooling system-overheat problem
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cooling system-overheat problem - 4/9/2006 10:41:09 PM
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bigcars
Posts: 2
Score: 0
Joined: 4/9/2006
Status: offline
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I've always liked big cars, and fords have always been good to me. I have a '98 crown vic xl hp that has a cooling system problem that has me stumped. Typically the temp guage will go up to normal (4 bars on the digital dash) and put out heat well. When it acts up it will start blowing cold air, and you can here than fan running real loud (louder than it does during normal operation). Then the temp guage starts to climb to the point of an overheat. When this is happening, and I check the reservoir with the car running, the coolant level in the reservoir is maxed out full to the top. I shut it off, give it just a little time, and then turn it on and off a couple of times, and the coolant level goes back down to within a couple inches of the top of the reservior (to the level it's at when everything thing is working normal). I can't figure out why its overheating. What is causing the coolant level to max out to the top of the reservoir and not go back down on its own? We've changed the thermostat twice, and put a new water pump on it too. Even worse, it will run great for a week, and then overheat, then be fine for another week or so. Any ideas on what's happening or what I should check next? Thanks in advance for your help. Eric
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