Cooling Problem

GERHARD84

MEMBER
2008 MAZDA 3
2.0L
4 CYL
FWD
MANUAL
84,791 MILES

Hi there
My car blew headgasket and we replace it, but the car stil overheats. My heat says running temp but car overheats. I then changed the thermostat and same prob. I then bought a new engine cooler temp sensor, but now the fan goes on and temp gauge shows high when engine is cold. Just before you start the car, when on the heat gauge so high. Went back and got a other sensor and does the same.
Don't know what to do anymore

Regards
Gerhard Bergh
P.S Happy new year !

5 Replies

JOHNNYT73

MECHANIC
924 POSTS

Are you sure that you are burping all the air out of the cooling system?

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Friday, January 1st, 2016 AT 5:22 AM

GERHARD84

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4 POSTS

Yes I have done that aswell

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Friday, January 1st, 2016 AT 5:26 AM

JOHNNYT73

MECHANIC
924 POSTS

What was the condition of coolant originally? Was it filled with debris and rust?

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Friday, January 1st, 2016 AT 5:38 AM

GERHARD84

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4 POSTS

The coolent was clean and no rust or debris

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Friday, January 1st, 2016 AT 11:19 PM

GERHARD84

MEMBER
4 POSTS

Hi guys

Just wanted to hear, can you skim a madza 3 head or do you have to buy a new head. After skimming the head the timing chain is a bit loose, so is there a way to put more tension on the chain or must I buy a new head like mazda tech insist? And still got the cooling prob?