Thread: Strange Yellow Residue on Oil Cap?

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  1. #21 Re: Strange Yellow Residue on Oil Cap? 
    GXP Level Member boostedcompg's Avatar
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    ......ok
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  2. #22 Re: Strange Yellow Residue on Oil Cap? 
    Because Wet Leaves Hippo Machine's Avatar
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    Quote Originally Posted by boostedcompg View Post
    ......ok
    what?


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  3. #23 Re: Strange Yellow Residue on Oil Cap? 
    GXP Level Member Tuner-Extraordinaire's Avatar
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    Just drive your car till it knocks. Clean your oil cap.
    Whine with your Cheese?
    Stock+Self Tuned. Going for low 14's everyday.
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  4. #24 Re: Strange Yellow Residue on Oil Cap? 
    The Blue One blueguy's Avatar
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    Quote Originally Posted by Hippo Machine View Post
    what?
    Sarcasm added, young Hippo.
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  5. #25 Re: Strange Yellow Residue on Oil Cap? 
    Because Wet Leaves Hippo Machine's Avatar
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    Quote Originally Posted by Nixon View Post
    Just drive your car till it knocks. Clean your oil cap.
    I'm so tired of you guys giving me **** all the time.


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  6. #26 Re: Strange Yellow Residue on Oil Cap? 
    GXP Level Member Tuner-Extraordinaire's Avatar
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    Actually i wasn't giving you ****, Guy.

    I told you what to do in chat. Did you listen?

    Clean your ****ing oil cap, keep an eye out on things (Maybe take a road trip.) for the next few thousand miles and see if it comes back.
    Whine with your Cheese?
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  7. #27 Re: Strange Yellow Residue on Oil Cap? 
    I live here. TLSheff's Avatar
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    Quote Originally Posted by Hippo Machine View Post
    I'm so tired of you guys giving me **** all the time.
    If there is enough coolant in the oil to do that to the cap then there is enough in the pan to be noticeable. Pull the dipstick, if it is milky like the cap... you have coolant leaks... if not... it is moisture buildup on the cap. I see it alot in Oklahoma, on regular vehicles that aren't driven much or sit for a while.

    If the oil on the dipstick (that would be in the pan) is not milky, then there is no coolant in the oil... right? no risk of knocking... sheesh, stop scaring the poor kid.

    Clean it, go for a good long drive, check it again

    Quote Originally Posted by AmericanSoldier View Post
    ...not scanning/monitoring your motor is like bangin a hooker and you just HOPE your not infected.
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  8. #28 Re: Strange Yellow Residue on Oil Cap? 
    GTP Level Member BlackGT97's Avatar
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    ive had that before. not quite to that extent, but mine was just moisture. to be sure, clean the cap and do an oil change to inspect the oil, then take her for a drive of let it warm up to normal temps....then see if it reapperas.
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  9. #29 Re: Strange Yellow Residue on Oil Cap? 
    GTX Level Member industrialfish's Avatar
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    Quote Originally Posted by TLSheff View Post
    If there is enough coolant in the oil to do that to the cap then there is enough in the pan to be noticeable. Pull the dipstick, if it is milky like the cap... you have coolant leaks... if not... it is moisture buildup on the cap. I see it alot in Oklahoma, on regular vehicles that aren't driven much or sit for a while.

    If the oil on the dipstick (that would be in the pan) is not milky, then there is no coolant in the oil... right? no risk of knocking... sheesh, stop scaring the poor kid.

    Clean it, go for a good long drive, check it again
    My 3800 Firebird had that same crap in the oil cap. For 80,000 miles. Every 3000 miles the oil got changed, and the cap was gunked up with nothing at all in the oil.
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  10. #30 Re: Strange Yellow Residue on Oil Cap? 
    GXP Level Member z3r0's Avatar
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    that's not coolant, thats mustang sperm, looks like your car got raped

    Quote Originally Posted by TLSheff View Post
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  11. #31 Re: Strange Yellow Residue on Oil Cap? 
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    Hi Hippo,

    It's definetly coolant could be a blown head gasket, As for sittin causeing the problem, I used to live in NY where it got real cold and mositure was plentuful, I've left cars sit 9 months at time and NEVER had it cause that problem. I say do a compression test on all cylinders and YOU DO IT so you are sure it was done and done properly, low compression I'd say head gasket. See if Bill boost or drunkie back me up on that.
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  12. #32 Re: Strange Yellow Residue on Oil Cap? 
    Because Wet Leaves Hippo Machine's Avatar
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    Quote Originally Posted by Logan541 View Post
    Hi Hippo,

    It's definetly coolant could be a blown head gasket, As for sittin causeing the problem, I used to live in NY where it got real cold and mositure was plentuful, I've left cars sit 9 months at time and NEVER had it cause that problem. I say do a compression test on all cylinders and YOU DO IT so you are sure it was done and done properly, low compression I'd say head gasket. See if Bill boost or drunkie back me up on that.
    I also rarely drive it more than a mile at a time.


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  13. #33 Re: Strange Yellow Residue on Oil Cap? 
    Moderator dsmuts's Avatar
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    It's def not a head gasket they almost never fail unless tampered with before. If you fluid levels are not going down at all and your oil looks fine I'd just take it on a longer trip after cleaning out the oil cap and see if it returns.
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  14. #34 Re: Strange Yellow Residue on Oil Cap? 
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    Quote Originally Posted by dsmuts View Post
    It's def not a head gasket they almost never fail unless tampered with before. If you fluid levels are not going down at all and your oil looks fine I'd just take it on a longer trip after cleaning out the oil cap and see if it returns.
    Head gaskets DO fail overheating, running with coolant way too low, using and INTERNAL engine cleaner such as sea foam on an older engine (especially if it has not been rountinely maintained) can all cause them to fail, I have seen blown gaskets on a 1972 duster, 1963 Plymouth Belevedere, 2001 Chevy Venture Van and a 1972 Mach I mustang (with the supposedly indestructible 351 Cleveland engine). Been working on cars since 1970, and I did say to run a compression test first to be sure
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  15. #35 Re: Strange Yellow Residue on Oil Cap? 
    Moderator dsmuts's Avatar
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    Quote Originally Posted by Logan541 View Post
    Head gaskets DO fail overheating, running with coolant way too low, using and INTERNAL engine cleaner such as sea foam on an older engine (especially if it has not been rountinely maintained) can all cause them to fail, I have seen blown gaskets on a 1972 duster, 1963 Plymouth Belevedere, 2001 Chevy Venture Van and a 1972 Mach I mustang (with the supposedly indestructible 351 Cleveland engine). Been working on cars since 1970, and I did say to run a compression test first to be sure
    Have you ever seen hg go bad on a 3800? If it was overheated it's possible but i doubt it was
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  16. #36 Re: Strange Yellow Residue on Oil Cap? 
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    How long has it been since someone cleaned that cap off? That residue can be normal, it depends on how long it took to get there. It could be left on the cap from where the intake manifold gasket leaked before. If the oil on the stick looks good and you aren't losing coolant, do what someone else above suggested. Clean the cap off good and then drive your car.
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  17. #37 Re: Strange Yellow Residue on Oil Cap? 
    GTP Level Member BlackGT97's Avatar
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    if the oil itself looks good, then i beleive (for what ever thats worth) that it is not coolant. Did you change the oil yet Hippo?
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  18. #38 Re: Strange Yellow Residue on Oil Cap? 
    I live here. brandonl2000's Avatar
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    OMG 2 pages in and you have nothing but what somebody and others have told you.

    You, Hippo, Joe, GO yourself and look at that engine. You be a big boy and you pop that hood! Look at the valve cover, then look between the head and the intake (like blue said) and see if it's a piece of plastic there or a piece of metal. THEN you will know for yourself if you have the chance of a coolant leak. And we shall take it from there.

    Go on. Take the first step.
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  19. #39 Re: Strange Yellow Residue on Oil Cap? 
    SE Level Member deangtp's Avatar
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    My car had that stuff not that long ago. Changed the oil, nothing wrong with my oil.
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  20. #40 Re: Strange Yellow Residue on Oil Cap? 
    GrandPrix Junkie NegativeOne13's Avatar
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    Quote Originally Posted by Hippo Machine View Post
    I'm so tired of you guys giving me **** all the time.







    Waterfalls aside, it's probably just moisture buildup man. Clean out the cap, drive it and check it every so often.

    And smile it's Blacktooth Grin!
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