plastic deflector under oil filter
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Mountain Pass
Joined: Aug 2004
Posts: 215
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From: Massachusetts
plastic deflector under oil filter
so on my '04 4.6L F150, while doing the first oil change, I noticed a small plastic deflector right under the oil filter. I assume it's there to catch any oil from the filter, at the time of replacemtn, and direct it away from the front axle. my problem with it is that to get my hands in there and get the filter off I have to remove the plastic thing.
so i have done my second oil change today, and had to go through and remove this piece again. my oiil change takes about 20 minutes longer now, b/c I have to take this piece off. so this time, I didn't put it back on.
anyone think this is a bad idea? and why?
~Su
so i have done my second oil change today, and had to go through and remove this piece again. my oiil change takes about 20 minutes longer now, b/c I have to take this piece off. so this time, I didn't put it back on.
anyone think this is a bad idea? and why?
~Su
Posting Guru
Joined: Dec 2003
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I have changed my oil 7 times so far (23k). I have yet had to take the plastic piece off. Do you do this to get the filter off or to put the new one on. If off, just use a filter wrench that fits over the end of the filter, a 3/8" ratchet and about an 8" extension. This is on a 5.4, but I don't think there is that much difference with oil filter placement.
Last edited by kingfish51; Sep 20, 2004 at 03:45 PM.
Senior User
Joined: May 2004
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From: Cincinnati, Ohio
I have changed the oil on my 4.6 3 times and haven't had any problem with the plastic thing. I always come in from the top to loosen it with the filter whrench and then unscrew by hand from the bottom. I like this feature since the oil drains into the pan instead of all over the crossmeember.
Junior User
Joined: Aug 2004
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From: Eastern Pennsylvania
I have the 5.4L. I changed oil for the first time last week. Although I don't have to remove the plastic deflector, I ran into problems when I asumed that the oil would run down the deflector. After positioning the oil pan below the deflector, I spun off the filter to find that the oil stream runs straight down onto the floor without a drop hitting the deflector. Next time, I'll put the pan directly under the filter and ignore the deflector. Anyone else experience this or is my deflector positioned incorrectly?
Senior User
Joined: Sep 2003
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I think the "deflector" might be a type of air-dam to help get air up to the filter for extra oil cooling. I do not think it is ment to guide the dripping oil. You're right, the oil falls straight down on my 4.6 as well.
Last edited by ejpreston; Sep 21, 2004 at 01:24 PM. Reason: added info
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Originally Posted by ejpreston
I think the "deflector" might be a type of air-dam to help get air up to the filter for extra oil cooling. I do not think it is ment to guide the dripping oil. You're right, the oil falls straight down on my 4.6 as well.
Junior User
Joined: Aug 2004
Posts: 82
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From: Eastern Pennsylvania
I never thought of it directing cool air toward the filter. If you look closely at the detail at the front, it is made to channel liquid into a small portion of the plastic. It could be there in case additional oil pours from the filter as you're removing it from the truck. It's a nice thought, just deceptive the first oil change. I've had bigger messes on the floor that that before.
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