2008 Impreza 2.5L overheating

My car has been overheating, also leaking coolant quite quick. Its not the thermostat and it may not be the water pump as it’s not worn. Only thing I noticed was a gasket that looked rough on the bottom end of the water pump, which is where coolant was leaking from. Don’t think it’s the head gaskets because the oil isnt discoloured and it looks okay. What else could it be?

Posted Jan 16, 2021, 4:29 PM UTC

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uncle87OP•

Also, smoke only rolls from the exhaust on cold starts

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Treesnfees•

Most definitely the head gasket.

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cstewart_52•

Time for a head gasket, water pump, timing belt overhaul. Do it with quality parts and driver her another 5 years.

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uncle87OP•

Turned out to not be the head gasket

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Treesnfees•

Well thats good! What was it?

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uncle87OP•

Well, a mixture of two things. Water pump, and timing belt. The outside My water pump that gets spun by the timing belt was so worn out to the point where my timing belt wasn’t biting it to spin the propellers on the inside. Turns out I’m desperately needing a timing belt too. It’s starting to crack, and it’s super worn out. So I think maybe that’s why it would only occasionally overheat. Only happens at certain speeds

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uncle87OP•

Been 3 days now since the replacement, no signs of overheating. Doing the timing belt this weekend!

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[deleted]•

[deleted]

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