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cold oil leak

the other morning I started my truck up cold to move it into the garage to do some work on it, in the 90 seconds it was running It leaked out about 3 quarts of oil. I had a heavy trail of oil . I coldnt find the leak, I toped off the oil and warmed it up and not a drop came out, and it hasnt leaked any since?
also my trans fluid wasnt showing on the dipstick at all, filled it up too, and its not leaking?
 

blacksnapon

Moderator
Staff member
the other morning I started my truck up cold to move it into the garage to do some work on it, in the 90 seconds it was running It leaked out about 3 quarts of oil. I had a heavy trail of oil . I coldnt find the leak, I toped off the oil and warmed it up and not a drop came out, and it hasnt leaked any since?
also my trans fluid wasnt showing on the dipstick at all, filled it up too, and its not leaking?
Where was the leak coming from (passenger side rear of engine, etc.)?
 
turned out to be the oil cooler, cheep parts, major work.
iv been using the block heater. it only leeks when its real cold,
anyone know what the labor should be to replace the 0rings?
 

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