Question about Toyota 4Runner

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94 toyota 4 runner overheats, overflow boiling over when engine heats up. no heat inside of vehicle.....we are trying to change themostat but are not able to free housing. we remove bolts, hose but housing still wont free up....

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Use a 2x4 place it against or 1x4 then hit wood with hammer should break housing free without breaking it.sounds like closed thermostat for sure.

Posted on Mar 19, 2011


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2. Get a new thermostat that is the correct spec for the vehicle. If you don't know check with the dealer.

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4. Importantly make sure that when connecting the cooling system back up and after topping it up with the correct coolant you purge the cooling system of air. If you do not do this the vehicle will overheat and potential engine damage will result.
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