Can't find oil leak!!!

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Thread: Can't find oil leak!!!

  1. #1
    1.8 Liter ECOTEC 1low1's Avatar
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    Can't find oil leak!!!

    So 3 nights ago on my way to work I smelled burning oil just as I got to work, when I checked under the hood I found oil all over the last two coil packs on the pass. side of the engine right by the firewall. It was a real cold night and thought maybe my PCV valve froze and maybe burped some oil out the dipstick. It had recently been replaced at an oil change shop and I figured cheap/faulty valve? I wiped it down the best I could and all seemed fine,I ordered GM valve drove home and to work next night nothing. Then it happened again last night,another cold night, and I haven't picked up valve yet.
    What confuses me though is there is nothing on the outside of the dipstick tube like the first time. Other than the oil pressure sending unit which I believe is on the drivers side and it is dry on that side,where else could it be leaking that high up on the engine? It is pretty difficult to see back there and was just wondering if anybody had any ideas??

    It is a 2003 Silverado 2500HD 4x4 with the 6.0.

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    2.4 Liter SIDI ECOTEC
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    Re: Can't find oil leak!!!

    !st was the dipstick in the whole way????

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    1.8 Liter ECOTEC 1low1's Avatar
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    Re: Can't find oil leak!!!

    Was just browsing and saw my old post,thought I would share what happened. I picked up the PCV valve and it was different, the new one had a tapered valve inside that looks like it would stop very little airflow when engaged,where as the one they installed would stop the airflow almost completely. After changing it I've had no problems. I looked online and apparently I was lucky as it could have caused alot bigger issues.

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