2003 Pontiac Aztec is running hot. have changed the thermostat, water pump and sensor. what else could it be?

Asked by Lisa Jan 17, 2016 at 07:54 PM about the 2003 Pontiac Aztek AWD

Question type: Maintenance & Repair

6 Answers
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Rowefast answered 8 years ago

Air possibly needing to be purged from the cooling system, Possible fans not working, Possible head gaskets.

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Rowefast answered 8 years ago

If you do a compression test on each cylinder, 1 or 2 cylinders would be low in compression.

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Lisa answered 8 years ago

On the Head Gasket….if it's the gasket, wouldn't my oil be milky? Meaning, oil and water mixed together?

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Rowefast answered 8 years ago

All depends where it is leaking from. Yes it can get into the oil, and thats the way it would look, but it could be by a water jacket hole,

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223,905

Rowefast answered 8 years ago

....water jacket hole then only seep into the cylinder.

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