oil is leaking from my oil cap---what causes this? Oil cap seems to be fine should I replace this first or?
Thanks
Dec 15, 2007 at 3:37 PM
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MHPAUTOS
CAR REPAIR CONTRIBUTOR
31,937 POSTS
Hi there,
There should be a seal in the bottom of the cap (rubber "O" ring) it may have dislodged and fallen out, or has crushed past it usable thickness as a seal, or the cap may be cracked, Check for seal, replace seal or replace cap,
Mark (mhpautos)
Dec 15, 2007 at 3:51 PM
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FREDDDD
MEMBER
2 POSTS
Thanks for your prompt reply.
Everything looks fine with the cap but I will replace it. Also seems to be excess pressure. Could the pcv valve need replacing. Some sludge build up may have occurred in past?
Dec 15, 2007 at 4:37 PM
MHPAUTOS
CAR REPAIR CONTRIBUTOR
31,937 POSTS
Hi there,
if the crank case pressure is a bit high and the PCV is not working as it should than replace it to be safe, high crankcase pressure will cause a failure in other seals as well so best to make sure all is working as it should.