VERY Bad Cold Idle, Replacing Intake Gaskets - Taurus Car Club of America : Ford Taurus Forum
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post #1 of 19 (permalink) Old 09-09-2014, 03:39 PM Thread Starter
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VERY Bad Cold Idle, Replacing Intake Gaskets

No vacuum leaks. I've replaced IACV and PCV. Cleaned the manifold (Seafoam), entire throttle body.

The cold idle became a lot worse over the last few days. Starts up at 1500rpm, jumps up to 1800, drops to 1400, back up 1500 etc until it drops down to 1000rpm and even then it bounces 100-300 rpm until warm.
So to the point. I'm going to order the intake manifold gaskets via RockAuto but there's three choices. I've never done this before so should I get the most expensive (includes everything)? They all show the same thing. Should I also replace the EGR gaskets? I believe I have to remove that to remove the manifold.
TIA

Last edited by Rochev; 09-09-2014 at 03:49 PM.
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post #2 of 19 (permalink) Old 09-09-2014, 03:49 PM
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FelPro, that is all. I plan getting some for their gaskets for my Sable. Even Sam used FelPro gaskets when he did the intake gaskets on his old 2000 Sable.

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post #3 of 19 (permalink) Old 09-09-2014, 03:52 PM
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Felpro are the way to go and yes replace the EGR gaskets as well. It's good insurance and you'll need to pull it off anyway to get to the UIM/LIM.
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post #4 of 19 (permalink) Old 09-09-2014, 04:40 PM
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Felpro all the way, nothing else.

Do you have a TPS on that year? Might be a quick fix, just a thought.
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post #5 of 19 (permalink) Old 10-07-2014, 06:17 PM Thread Starter
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I just bought a 2004 Sable with the same 'Tec engine and it's in less than favorable shape. It is 10x quicker than mine. After driving mine again, it feels like a Vulcan motor.
When I get in the Sable and use the throttle like I do in my Taurus, I get pushed back in the seat.

I just want to make sure that the intake gaskets is a likely cause...I've replaced the PCV and IACV with Motorcraft, and cleaned the throttle body many times. I scanned it too even when cold starting, nothing came up.

After replacing the plugs back in March, the car felt a lot quicker and got better MPG. The intake gaskets weren't replaced. Shortly after that, it started cranking longer in the cold and idling bad when cold, and became a bit sluggish.
I don't have $300 to throw at it if it won't help, but it sounds like the culprit.
Any opinions on anything else to check?
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post #6 of 19 (permalink) Old 10-07-2014, 09:02 PM
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Quote:
I don't have $300 to throw at it if it won't help, but it sounds like the culprit.
Are you talking UIM/LIM gaskets here? if so, $10-$15 plus a couple of hours if it is your first time and you are being extra careful.

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post #7 of 19 (permalink) Old 10-08-2014, 07:13 AM Thread Starter
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Originally Posted by Dirty White Bull View Post
Are you talking UIM/LIM gaskets here? if so, $10-$15 plus a couple of hours if it is your first time and you are being extra careful.
Yes, I got all of them from Felpro. My mechanic quoted me that. It's too big a job for me and I won't have the time for it.
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post #8 of 19 (permalink) Old 10-08-2014, 08:12 AM
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Originally Posted by ShelbyRacer78 View Post
FelPro, that is all. I plan getting some for their gaskets for my Sable. Even Sam used FelPro gaskets when he did the intake gaskets on his old 2000 Sable.
This^^

I used the complete Felpro set on mt 01 and I have no issues with them roughly 3 years and 20K miles later.

If it's sluggish and doesn't feel like it has the power it used to I would be suspecting a blockage in the 3rd cat, which seems to be common. I have a topic about it(if you search )

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Last edited by sousa632; 10-08-2014 at 08:15 AM.
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post #9 of 19 (permalink) Old 10-08-2014, 12:37 PM Thread Starter
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Originally Posted by sousa632 View Post
This^^

I used the complete Felpro set on mt 01 and I have no issues with them roughly 3 years and 20K miles later.

If it's sluggish and doesn't feel like it has the power it used to I would be suspecting a blockage in the 3rd cat, which seems to be common. I have a topic about it(if you search )
Thank you, Ill look into that. It should be the intake gaskets. Around the time the plugs were done, right when the engine shuts down it makes a loud hiss from the intake area. Only for a second though as it shuts off, not like a leaking vacuum line after it shut off. The sable doesnt do that.
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post #10 of 19 (permalink) Old 10-08-2014, 04:40 PM
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Originally Posted by Rochev View Post
My mechanic quoted me that.
File for divorce from your mechanic ASAP!

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