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Help.oil fouled.

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Old 04-28-2007, 02:19 PM
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04z350
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Unhappy Help.oil fouled.
Hey guys i just decided to change out my spark plugs because my car has not felt so powerful as it used to. All of the plugs are oil fouled, and I can see oil residue coming from under the intake manifold, any information would be great, help!

Jeremy
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Old 04-28-2007, 02:23 PM
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mods? mileage?
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Old 04-28-2007, 02:40 PM
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headers, kinetix intake manifold, and intake, 48,542 miles
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Old 04-28-2007, 02:42 PM
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Sean
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any access to a compression tester?
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Old 04-28-2007, 02:45 PM
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Unfortunately no. Bought the plugs on friday because I just wanted to do some normal maintenance today now im worrying.
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Old 04-28-2007, 02:50 PM
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I am worried it's your rings, need to test to find out.
how low is your oil?
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Old 04-28-2007, 02:53 PM
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I just changed it recently 5 quarts. I can never tell with the stupid dip stick we have, it always picks oil off of the dipstick tube
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Old 04-28-2007, 02:55 PM
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did you put the plugs back in? I think checking to see how fast they foul will give you an idea of how bad it is....but you must get a compression test.
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Old 04-28-2007, 02:57 PM
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any chance you overserviced the oil? drive near red line often? went a while with low oil (more than a qt. low)
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Old 04-28-2007, 03:03 PM
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Well I don't believe I overserviced it, though I do drive spirited sometimes. I guess I will just change the plugs and check them next weekend, appreciate the help though really, thanks.
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Old 04-28-2007, 03:13 PM
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Originally Posted by 04z350
Well I don't believe I overserviced it, though I do drive spirited sometimes. I guess I will just change the plugs and check them next weekend, appreciate the help though really, thanks.

get a compression tester. good luck
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Old 05-03-2007, 10:23 PM
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Originally Posted by sean1967
get a compression tester. good luck
Can you do a compression check yourself or do you have to take it to a shop to do it?

How easy is it to do and what is needed or have to be disconnected from the engine for the tester to work?
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Old 05-03-2007, 10:27 PM
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Originally Posted by denchan350gt
Can you do a compression check yourself or do you have to take it to a shop to do it?

How easy is it to do and what is needed or have to be disconnected from the engine for the tester to work?
you can do it, the tester replaces a spark plug (one at a time). you dissconnect the spark for the engine. just using the starter motor to turn the engine over will give you the reading.
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Old 05-04-2007, 04:48 AM
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i had some blow by at 30k miles on the 2 back plugs...but it was normal, we pulled 2 other cars and they had the same signs...
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Old 05-04-2007, 05:06 AM
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Could be tube seals are leaking too. I had a few plugs with some oil on them.
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Old 05-04-2007, 08:07 AM
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Originally Posted by sean1967
I am worried it's your rings,
that's what I was thinking too.
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