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1989 F-250 Overheating problems

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Old Jan 4, 2007 | 12:51 AM
  #1  
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nova801428
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1989 F-250 Overheating problems

I have an 89 f-250, with a 460 acquired from my grandpa. He drove this truck everywhere. This year I took it hunting and towed a camper. I got home, parked it, let it sit for a couple of months. Now it overheats. I bought a new thermostat and that did not chang the problem at all, what could the problem be?
 
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Old Jan 4, 2007 | 12:52 AM
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taisa899
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From: Cookstown
waterpump maybe



Jim
 
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Old Jan 4, 2007 | 01:49 AM
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Water pump like taisa said, maybe change your radiador cap. Give the system a good flush and completely fill with good antifreeze. Could just be a partially clogged radiador try reverse flushing.
 
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Old Jan 5, 2007 | 02:37 AM
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The water pump pressure is good, how do you reverse flush the radiator?
 
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Old Jan 5, 2007 | 09:23 AM
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Make some adapters so you can hook a garden hose up to the lower radiador hose spud. then let it flush out the upper.
 
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Old Jan 5, 2007 | 02:52 PM
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When you say overheating, do you mean that the temp gage on the dash is showing higher than normal temps or are you having other indications?
I had the same problem just recently with my 89 F-150. Turned out the sensor for the temp gage was my problem and that I was not actually running hot at all. In the end it cost me just a thermostat and the worry about what the problem was.
 
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Old Jan 5, 2007 | 04:44 PM
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Does it overheat at all driving speeds? I would check the fan clutch as well as the other previous suggestions.
 
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