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Can you add a coolant sealer into the reserve antifreeze bottle I have a leak

(2002 Mercury Sable)
in Cincinnati, OH on February 19, 2013
I have a leak under the timing belt cover
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Popular Answer
on February 19, 2013
It has a timing chain for both pushrod and DOHC engines! Have system pressure tested to FIND your leak.
of Greg's Orange Auto on February 19, 2013
never use sealant. get an insp for poss water pump as #1 said
on February 19, 2013
If the leak is under the timing belt cover i would inspect further and make sure it is not coming from the water pump and if so i could recommend replacing the water pump because the sealer will more than likely not help your issue
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