I recently bought an 06 stage 3 roush f150 with 55k on it and I have a few questions. This isn't my first f150 but my last one wasn't supercharged. At idle, my engine shutters a little every once in a while which I know is normal for f150's. I was going to try to clean the IAC but I can't seem to find it! I can find it on my dad's 05 but I can't on mine. Where is it? Also when I'm driving, if I'm going around 60 mph and let off the gas, there is a brief vibration that lasts for about half a second. What could that be? Lastly, as far as maintenance, is there anything special I need to do with a supercharged truck when it's serviced? Thanks for your time.

 

Don't think it has an IAC valve.

Clean the MAF, TB etc etc.

Who's tune are you running?

Infact what's the set up? Stock boost etc?

EDIT: Synthetic oil is recomended.

 

The iac is nonexistant on your truck....

Primary routine points of maintenance that are a must on your truck are.....

Cleaning the throttle body

Cleaning the maf with maf cleaner

Changing the fuel filter

Changing the sparkplugs ar 60k and i see you're at 55k.....theyre a PIA....

If your drive shaft is the slip yoke style it may need to be lubed possible cause of the vibration

Link>>> https://www.f150online.com/forums/articles-how-tos-119/

 

thanks for the quick replies. I used to be a member on cumminsforum and it took forever to get a response! Anyways, It's a completely stock set up like it came from the factory. Roush's tune and everything. I've read that their tunes suck.

 

If your drive shaft is the slip yoke style it may need to be lubed possible cause of the vibration

Link>>> https://www.f150online.com/forums/articles-how-tos-119/[/QUOTE]

I tried the link and it took me to a page full of articles and I couldn't find one about this. What exactly needs to be lubed?

 

I tried the link and it took me to a page full of articles and I couldn't find one about this. What exactly needs to be lubed?[/QUOTE]

I checked too and its not there....

the spline gears need to be cleaned and relubed with motorcraft x8 grease....

you could also be experiencing a ujoint that needs to be changed also....