Oil inside intake manifold.. - Taurus Car Club of America : Ford Taurus Forum
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post #1 of 15 (permalink) Old 05-25-2018, 09:03 PM Thread Starter
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Oil inside intake manifold..

Not too long ago, I made a post about a P0174 code I was getting in my Taurus. Tried some of the suggestions, most of which were vaccuum leak related. Today I decided to finally check the runner control valve gasket, and the gasket was fine. However, there was oil on the control valve part itself. After a little further investigation, it looks like there's oil inside the cylinders as well.


Does anyone have any idea what kind of repair this might hint at? Doesn't look like there's any water inside, and it doesn't seem to be a blown head gasket. I will say the car has been running strangely for a while, and based off of the P2198 code it was throwing, an AutoZone employee said it could be a misfire on cylinder 2. There are a couple spots on both sides of the engine that look like burnt oil possibly, one looked like it was on cylinder 2 and the other possibly cylinder 4. I'll post pictures for clarification tonight.


Really appreciate any advice right now, I'm supposed to be moving soon so I need to get this moving quick. Depending on if it's a smaller deal than what it seems, I may just bring it in to a shop and pay to get it done quick (hopefully).


Link to my original post if anyone wants to look through symptoms. Let me know if you need any more info, the weather isn't letting me get out to do anything tonight.

https://www.taurusclub.com/forum/82-m...em-issues.html

Last edited by braxton665; 05-25-2018 at 09:33 PM.
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post #2 of 15 (permalink) Old 05-26-2018, 01:22 PM
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How did you check the runner control valve gasket? Just because it didnt fall apart in your hands doesnt mean it is good. I would have replaced it.

A small amount of oil in the intake is normal. It comes in thru the PCV system. Lots of oil, like puddles, indicated a problem.

Your comment about oil in the cylinders makes no sense. Did you pull the plugs and use a bore-scope to look in them? Pull the heads?

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post #3 of 15 (permalink) Old 05-26-2018, 05:00 PM Thread Starter
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Quote:
Originally Posted by Jeff K View Post
How did you check the runner control valve gasket? Just because it didnt fall apart in your hands doesnt mean it is good. I would have replaced it.

A small amount of oil in the intake is normal. It comes in thru the PCV system. Lots of oil, like puddles, indicated a problem.

Your comment about oil in the cylinders makes no sense. Did you pull the plugs and use a bore-scope to look in them? Pull the heads?

Fair points made, I'm not too experienced with cars yet. It looks like just a light coat, and doesn't look fresh. I actually didn't investigate too far, the wind was getting bad and I didn't want to risk dirt getting into the engine. My cousin made an observation, and he's not exactly a gold-thumb mechanic but he insisted on helping with taking off the plenum.


Anyway I haven't put it back together yet, should I just get an oil filter gasket like others have mentioned to replace it? Thanks for the heads up on replacing that while I'm still in. I'm also taking a look at the fuel injectors because the car has some hesitation issues, and there's a sputter in the exhaust that smells like gas. It idles sporadically and somewhat high.
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post #4 of 15 (permalink) Old 05-26-2018, 08:30 PM
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Injectors rarely fail. I would look elsewhere for your issues.

I would spend the $10 and get the correct gasket from the dealer or online versus using an oil filter gasket.

Remove and inspect the coil pack. If there are ANY cracks, no matter how small, replace it with a Motorcraft or BWD unit only. How old are the plugs and plug wires? Wires properly routed? Are the plugs the correct Motorcraft or NGK plugs?

Idle issues are either a vac leak or IAC issues. Try cleaning / lubing the IAC, and make sure it is a Motorcraft unit and not some aftermarket POS.

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post #5 of 15 (permalink) Old 05-27-2018, 09:50 AM
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Agree with the IAC, get oem, during my diagnosis of my issues, which I have fixed, I tried an aftermarket, echlin\standard ignition, same, idle was all over the place, cleaned and put the oem back on, no issues, actually runs good now.
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post #6 of 15 (permalink) Old 05-27-2018, 09:44 PM Thread Starter
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Quote:
Originally Posted by Jeff K View Post
Injectors rarely fail. I would look elsewhere for your issues.

I would spend the $10 and get the correct gasket from the dealer or online versus using an oil filter gasket.

Remove and inspect the coil pack. If there are ANY cracks, no matter how small, replace it with a Motorcraft or BWD unit only. How old are the plugs and plug wires? Wires properly routed? Are the plugs the correct Motorcraft or NGK plugs?

Idle issues are either a vac leak or IAC issues. Try cleaning / lubing the IAC, and make sure it is a Motorcraft unit and not some aftermarket POS.

Good suggestion! I also haven't checked the coil pack yet, but the plugs and plug wires are ~a year old. The wires should be properly routed, and I'm not certain on the brand of the plugs because they were changed before I owned it.
They make IAC cleaner, correct? I'm not certain, but I think I may have cleaned the IAC a while back. I'll get back to you tomorrow when I have a chance to check it out.


Quote:
Originally Posted by dirtcrew51m View Post
Agree with the IAC, get oem, during my diagnosis of my issues, which I have fixed, I tried an aftermarket, echlin\standard ignition, same, idle was all over the place, cleaned and put the oem back on, no issues, actually runs good now.

Did you buy the IAC online? Hoping to spend less than the $60-100 I've seen looking for prices if this is my problem ..but I'd rather not skimp on quality. Thanks for the suggestion!
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post #7 of 15 (permalink) Old 05-28-2018, 08:52 AM
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Quote:
Originally Posted by braxton665 View Post
Good suggestion! I also haven't checked the coil pack yet, but the plugs and plug wires are ~a year old. The wires should be properly routed, and I'm not certain on the brand of the plugs because they were changed before I owned it.
They make IAC cleaner, correct? I'm not certain, but I think I may have cleaned the IAC a while back. I'll get back to you tomorrow when I have a chance to check it out.





Did you buy the IAC online? Hoping to spend less than the $60-100 I've seen looking for prices if this is my problem ..but I'd rather not skimp on quality. Thanks for the suggestion!

I would take a JY oe IAC and clean it over any new one. See pic, this one from Lincoln but looks the same as Vulcan, different size opening. I took this and cleaned it up and traded it on my '02 Lin Cont. Works exactly the same as OE on the car which was very clean anyway. Just a test to see if a very dirty stuck one can be cleaned and same as new. Yes it can. But, the prime reason for any IAC not being totally clean in use is the PCV not up to par or aftermarket PCV. Only clean filtered air should pass through this part. For cleaning I use household ammonia and a Q-Tip holding the solenoid up and in a sink. Use a tooth pick to move the piston back and forth until the shaft is clean and free. Drop of oil on the moving surfaces and wipe the excess. I dry mine with a hair dryer before oiling.
Pic of my DOHC IAC, pull off and check for clean as in this pic. It stays this way, but if I see any sign of oil or water, time for PCV replace with only OE part. This car has 170K on it and stays clean.
-chart-
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post #8 of 15 (permalink) Old 05-28-2018, 04:18 PM
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Quote:
Originally Posted by braxton665 View Post
Good suggestion! I also haven't checked the coil pack yet, but the plugs and plug wires are ~a year old. The wires should be properly routed, and I'm not certain on the brand of the plugs because they were changed before I owned it.
They make IAC cleaner, correct? I'm not certain, but I think I may have cleaned the IAC a while back. I'll get back to you tomorrow when I have a chance to check it out.





Did you buy the IAC online? Hoping to spend less than the $60-100 I've seen looking for prices if this is my problem ..but I'd rather not skimp on quality. Thanks for the suggestion!

I work at NAPA got one there.
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post #9 of 15 (permalink) Old 05-29-2018, 07:34 AM
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^^^^^ The ONLY IAC's that work correctly are the MOTORCRAFT ones. ALL other brands are hit or miss....mostly miss.
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post #10 of 15 (permalink) Old 05-31-2018, 09:02 AM
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I learned a long time ago get oem parts for sensors and other sensitive things.
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