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over heating?


mrblue's Avatar
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08-18-03, 06:44 AM   #1  
over heating?

2000 chevy 4x4 with 4.3 or 4.8 . This is the second time it has over heated.. First time it hit about 225 when i was sitting in the heat with running, and yesterday i was sitting in an open field during the heat of the day and it hit about 230 before noticed and shut her down.. Drove about an hour home and it was fine.
Any Guesses

 
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Joe_F's Avatar
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08-18-03, 06:53 AM   #2  
Joe_F
Have you ever flushed the cooling system or changed the thermostat?

 
mrblue's Avatar
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08-18-03, 08:32 AM   #3  
No i haven't done either..

 
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08-18-03, 08:45 AM   #4  
Joe_F
Good place to start. 3 years is too long on a coolant flush. Overdue for that.

 
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08-18-03, 08:53 AM   #5  
would it be wise to take to someone and have it done, cant they pressure test or something to make sure everything is ok.

 
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08-18-03, 08:59 AM   #6  
Joe_F
Sure, they can check it for pressure problems, not likely on a truck this new.

If you doubt your ability to handle it, leave it to a pro, but with a repair manual and your side, it should be pretty easy.

 
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08-18-03, 10:13 AM   #7  
darrell McCoy
Service system as Joe said, however, with no elec fans, sitting still and at an idle, you do not have the air going thru cond and rad that you would have on the hwy. How long do you let it idle?
I would say your symptoms are fairly normal if idling for extended periods of time, specially if outside air is really HOT.

 
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08-19-03, 09:26 AM   #8  
redneck
These new trucks run hot and 225-230 is not overheating. When coolant boils out of the rad cap then it is overheating. Your fine, but a flush could not hurt as routine maintence! If temps continue to rise to boil over, then you could have a stuck thermostat.

 
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08-19-03, 10:46 AM   #9  
Thanks, I will service sys. and go from there.. Yes it was running about 30 min. without really moving, and it was hot 100 or so.
It just normally runs on the mark below 210 on the guage..
Thanks for the help

 
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