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new engine put in, overheating issues

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Old May 1, 2013
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new engine put in, overheating issues

I blew the engine in my 2003 honda civic so i replaced the block. Everything is now put together and the car runs fine. But when i took it for a test drive the temp gauge shot right up to high in less then a minute. I was wondering what you guys think could cause this, im fairly sure i didnt miss any plugs except for one coming off the a/c pump which i cant find where it goes.im fairly sure it isnt the head gasket i cant find coolant in the oil its blowing hot air And its a new gasket . Im thinking it could be a bad water pump or something else idk any help would be great

Last edited by 2oo3EX; May 1, 2013 at 05:03 PM.
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Old May 1, 2013
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Re: new engine put in, overheating issues

sounds like the system may just need to be bled or "burped"

however, do not let it overheat during the process
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Old May 1, 2013
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Re: new engine put in, overheating issues

temp gauge shot right up to high in less then a minute.
ONLY one minute?

First thought: Something electrical is lying, or the water pump has no impeller (or it is slipping on the shaft).

A good wire diagram can be your best friend. So can a scanner.


i didnt miss any plugs except for one coming off the a/c pump which i cant find where it goes
It's attached to the fan shroud.

it isnt the head gasket i cant find coolant in the oil
Meaningless. That's only one of about 15 different ways a head gasket can fail.

Last edited by ezone; May 1, 2013 at 11:45 PM.
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