Well this weekend my truck started idling bad. In park it idles anywhere from 450rpm to 700 rpm and sounds like its gonna die. But in drive with foot on the break its about 600. It seems like it might be missing some power too. I might just be me but it doesnt seem right. Anyone have any ideas?

 

Check your fuel filter and plugs

 

I was think plugs since they havnt been changed for a few years...wheres the fuel filter? On the frame im guessing?

 

Drivers side frame. Really easy to swap out a new one. How long since youve cleaned throttle body and maf? Also check for vaccuum leaks around the intake.

 

The man is right^ lol

 

Replace your IAC valve. Very common on Ford.


PS. I take donations for correct answers.

 

cleaned and put a new to me bbk throttle body on in the fall. Cleaned the MAF maybe a 2 weeks ago. Tomorrow I may clean the MAF if this second storm doesnt hit us.

 

hahaha

check all of the above.

plugged fuel filter can really mess stuff up especially at WOT. the IAC is another great place to look as well as any bad hoses. i had a hose with a hole in it that was giving me 3 or 4 different codes.

clean your TB, MAF, clean or replace your IAC.i dont think theyre too pricey, and check for bad vacuum lines.

 

I'll check all those tomorrow after class. I havnt had any codes come up yet.

 

Did you ever figure out the issue with your truck?