Over Heating

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  #1  
Old 02-13-06, 10:52 PM
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Over Heating

I have a 1988 GMC K2500 4x4, 5.7 engine, the temp gage goes as high as it can then goes back to normal. It does this all the time. I am thinking the thermostat is the problem but not sure. Any advise would be greatly appriciated. Thanks
 
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  #2  
Old 02-13-06, 11:38 PM
v8driver's Avatar
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Yes, even if you think it might be..... why not go ahead and try a new one? They are cheap. You risk warping the heads or block, and cooking the oil if you keep running it in its condition.
 
  #3  
Old 02-14-06, 04:40 AM
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Location: Cape Cod
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I'm not one for throwing parts at a problem, but if you don't know how old the t-stat is, I'd agree with just replacing it
They are cheap

Question:
Is there any pattern the the OH?
Like only at idle or only on the highway? something like that?
 
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