I Need Help!!!

Reply Subscribe

Thread Tools

Search this Thread

Dec 18, 2006 | 03:38 PM

raballi

Thread Starter

New User

Joined: Dec 2006

Posts: 4

Likes: 0

I Need Help!!!

I have a 1998 Ford Expedition and we have not had any problems with it. This weekend I went to turn the car on while I put the kids in the car and it turned on just fine, but shut down after about three seconds. I turned it on again and the same thing. The third time I turned it on I kept my foot on the gas pedal and it stayed on. As soon as I took my foot off of the gas pedal it idled down and shut off. Does anyone know what this could be, and is it something I can fix by myself?!?

Dec 18, 2006 | 03:41 PM

thefarelaneman

Posting Guru

Joined: Oct 2006

Posts: 1,175

Likes: 0

From: charlotte nc

the TPS isnt working

Dec 18, 2006 | 03:43 PM

raballi

Thread Starter

New User

Joined: Dec 2006

Posts: 4

Likes: 0

What is that and can I fix it on my own?

Dec 18, 2006 | 03:44 PM

amm888

Elder User

Joined: Dec 2004

Posts: 724

Likes: 0

From: Woodland Hills

i was thinking IAC (idle air control) myself. if it is this it's a pretty easy fix. take the IAC out, clean it (or replace it), and put it back.

al

Dec 18, 2006 | 04:48 PM

orleec

Senior User

Joined: Aug 2004

Posts: 304

Likes: 0

From: Connecticut

Quote:

Originally Posted by amm888

i was thinking IAC (idle air control) myself. if it is this it's a pretty easy fix. take the IAC out, clean it (or replace it), and put it back.

al

+1 on IAC valve

Had this issue before, removed and cleaned the valve and I'm still good after almost a year now.

Haynes has a good picture of it on page 4-13. Or search the forum about the subject. The part is not that expensive, so replacing it with a new one is your option - supposedly available in car parts store and not just in dealer.

Position of the valve will make the job a bit of a hassle but overall is not that hard a job. Can't remember the size of the bolt, should be in some threads here... Good luck.

Dec 18, 2006 | 07:05 PM

sbclemens

Elder User

Joined: Aug 2004

Posts: 551

Likes: 1

Check the hoses going to the throttle body. If one comes off, the engine won't be able to idle. I also had a small leak in a hose that runs behind the throttle body that would cause the engine to die at idle.