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  #1  
Old January 7th, 2013, 20:44
joedurt1 joedurt1 is offline
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Exclamation overheating issues

Blew out the water pump...Replaced water pump...thermostat and hoses.
Temp will not maintain steady. Sometimes too hot and some times too cold.
Heater blows fine when at at idle but cold when going down the interstate and at times the engine totally overheats. What the heck ?
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Old January 7th, 2013, 21:02
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Ecomike Ecomike is offline
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Re: overheating issues

Year, specs, OEM, MODs... details????

T-stat may be sticking, even new ones. Sounds like the new stat may be bad, but we need the details above.

Is the water pump impeller the correct rotation?
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Old January 7th, 2013, 21:28
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MaxxXJ MaxxXJ is offline
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Re: overheating issues

Radiator could be restricted.

Random thought, you didnt get the failsafe thermostat did you? Those will lock wide open when you overheat and that would cause the engine to get hot at idle and cold while driving at freeway speeds.

flush your system, run a water hose into the inlet side with the engine running and let it flow out onto the ground out the outlet hose, that will push out any debris inside your engine restricting flow as well...
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Old January 8th, 2013, 12:50
joe_peters joe_peters is offline
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Re: overheating issues

Quote:
Originally Posted by Ecomike View Post
Year, specs, OEM, MODs... details????

T-stat may be sticking, even new ones. Sounds like the new stat may be bad, but we need the details above.

Is the water pump impeller the correct rotation?
What Ecomike said.

If a closed system, did you BURP it?
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  #5  
Old January 8th, 2013, 21:34
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MaxxXJ MaxxXJ is offline
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Re: overheating issues

Quote:
Originally Posted by joe_peters View Post
What Ecomike said.

If a closed system, did you BURP it?
Burping it is kind of a PITA if your not totally sure what your doing...
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