Idle air control system problems, help please
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Idle air control system problems, help please
Hello , new to this forum , pleasure to be here , owner to an 2005 expedition with a 5.4L. with 150000 miles have this truck sense new , never had any trouble out of my expedition , is a true exellent machine , lately however i've been seeing that my rpms when coming to a traffic light come way down like to 500 then down to 450 , i feel a little movement shaking of the engine ,then starts climbing higher on rps to about aprox. 550 ,then ok no ather signs , this couple of days the little engine sign came up , erased it and came back up again , took it to the autozone and gave a code : idle air control system revolutions per minute lower than expected . i think its the same low rps i've been noticing , any ideas as what to check for , planning on working on it tomorrow , thanks in advance to you all .
Post Fiend
Joined: Feb 2008
Posts: 10,977
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From: Lancaster, Pa.
Welcome to FTE, glad to have yaa aboard. As for the part your looking for I tried to look it up for you but it didn't show that part for your 05 on Rock-Auto. If its anything like my 97 this is the part and what it should look like. RockAuto Parts Catalog Not sure the difference between the 4.6 and 5.4. What I would do is check all the hoses first, they become brittle from the under the hood heat and crack, its what happened to me, and I replaced mine, didn't need no IAC.
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thanks B.P. done the service today and it worked just fine cleaned the throtle intake with carb cleaner spray really good and down thru some of the pipes conduits coming to the throtle intake and perfect back to the 600 rps running also smoother , thanks
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yes sir, went out yesterday afternoon with family , and everything was back to normal 600 rps and i notice the truck with a better response , exellent truck i will probably own it for the rest of it's life , thank you all .
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buddss
1997 - 2006 Expedition & Navigator
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Sep 21, 2015 08:37 AM
