2000 GT Rev. Problem.
Thread Starter
Joined: Mar 2006
Posts: 18
From:
2000 GT Rev. Problem.
Hi.
I've got a 2000 GT. Pretty well stock. K&N Filter, Magnaflow exhaust, that's about all.
My problem is...when I'm shifting through all gears, warm or cold outside....my rev's do not drop fast enough. My 92' notch was not like this. What I want to know is why? Why is it, even though it's warm outside, my rev's do not drop quick enough to let me jam into the next gear in a hurry...I have to wait for rev's to come down. I'm worried about wearing out the tranny syncro's, wearing my clutch, and wasting gas!!!!! Most of all it's a huge pain in my ***!! I want to be able to let off the gas, and have the rev's fall quickly so I can gain control when cornering and down shift quickly. Also, how can I stiffen up my gas pedal?
Any ideas?
Thanks;
Biltsy
I've got a 2000 GT. Pretty well stock. K&N Filter, Magnaflow exhaust, that's about all.
My problem is...when I'm shifting through all gears, warm or cold outside....my rev's do not drop fast enough. My 92' notch was not like this. What I want to know is why? Why is it, even though it's warm outside, my rev's do not drop quick enough to let me jam into the next gear in a hurry...I have to wait for rev's to come down. I'm worried about wearing out the tranny syncro's, wearing my clutch, and wasting gas!!!!! Most of all it's a huge pain in my ***!! I want to be able to let off the gas, and have the rev's fall quickly so I can gain control when cornering and down shift quickly. Also, how can I stiffen up my gas pedal?
Any ideas?
Thanks;
Biltsy
5th Gear Member
Joined: Feb 2004
Posts: 2,028
From:
RE: 2000 GT Rev. Problem.
To cause your idle to return to normal quicker you can make a restrictor for about .29 cents.
Go to your neighborhood hardware store and buy a couple of 1/2 inch copper pipe caps.Take them home and drill a 3/16 inch hole in one of them.Pull the 3/4 inch hose going into the front of the T/B off the T/B.This is the IAC hose.Insert the drilled pipe cap into the hose and put everything back together.Start the engine and see if the idle is high enough that the engine will run with the A/C on with the engine cold.If not you can adjust the idle by making the hole in the pipe cap larger.It don't take much to make a difference so go slow,but if you go too far that's what the second cap is for.
Go to your neighborhood hardware store and buy a couple of 1/2 inch copper pipe caps.Take them home and drill a 3/16 inch hole in one of them.Pull the 3/4 inch hose going into the front of the T/B off the T/B.This is the IAC hose.Insert the drilled pipe cap into the hose and put everything back together.Start the engine and see if the idle is high enough that the engine will run with the A/C on with the engine cold.If not you can adjust the idle by making the hole in the pipe cap larger.It don't take much to make a difference so go slow,but if you go too far that's what the second cap is for.
5th Gear Member
Joined: Mar 2005
Posts: 3,003
From:
RE: 2000 GT Rev. Problem.
why do u want ur rpms to drop faster? if they hang like that its almost like a way to cheat at a powershift. I have an 00 gt too, and the revs stayed high for a long time when I was stock. for some reason after doing the headers and intake they drop a little faster.
Thread Starter
Joined: Mar 2006
Posts: 18
From:
RE: 2000 GT Rev. Problem.
That's good and all, but high rev's staying up causes increase wear on my clutch! For some reason, the old 5.0 litres did not do this. A quick pop of the throttle, and the rev's dropped fast...very fast. I like that cause I feel I have more control going around corners / 2nd gear for turns etc...
Hoenestly, I don;t know what to do...getting f&&*&%#!^&*^ing annoyed!!!
What about vacuum leaks?
2nd Gear Member
Joined: Sep 2004
Posts: 490
From: Chicago 'burbs
RE: 2000 GT Rev. Problem.
Its just the way the engine was designed. Sure its a sports car, but they kept driveability in mind also. The revs staying up gives you more time to shift, but people like you and me dont need/want that...
The IAC valve shown in the picture below is what you are going to mess with. Theres two small bolts connecting it to the plenum. Take those bolts off and pull the IAC away from the plenum. There is a thin black gasket between the two. Take that gasket off but don't damage/loose it. You will see a hole in the gasket that lines up with a hole going into the plenum. What you want to do is to make a new gasket with a smaller hole (i forget how much smaller, i think i made it half as big as it was). I used the old gasket to trace out a new one but with the smaller hole. You can really just use a thin piece of cardboard(cereal box) to make the gasket, or get fancy like i did and buy gasket matieral for 3 bucks at autozone. One tip from my experience.... DON"T MAKE THE HOLE TOO SMALL. The car will die when you are driving and push the clutch in. You will probably have to experiment with different hole sizes till you find one that works well w/o killing the engine.
If you dont already know... The purpose of the IAC is to let air into the engine when you take your foot off of the gas pedal(if this wasn't there the engine would die b/c it wouldnt get any air). Ford designed it with a large opening, thus making the revs drop slowly, thus giveing you more time to shift as i said earlier.
ORIGINAL: Smooth_J
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[IMG]local://upfiles/14091/92E909F7F2004EDDA8FFDC7B5228C15E.jpg[/IMG]
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