Rough Idle problem, Need advice.

[Mireles Sr]

Hi I have a 03 Expedition FX4, just did
the spark plugs, and coils. Now it's got a
a little bit rough Idle. Also cleaned the
throttle body, MAF sensor, IAC. And still
Have a crappy idle and loss of power.
Need help.

 

[1997SCEBFEX]

welcome aboard.

have you pulled codes?
how many miles? Fuel filter? Air filter? Throttle position Sensor?

 

[1955moose]

Did you have the loss of power previously? Or is that something new since the tune up?

Sent from my N9131 using Tapatalk

 

[johnboneske]

Did you have the loss of power previously? Or is that something new since the tune up?

Sent from my N9131 using Tapatalk

Would like to know that too?? What codes is the scanner giving you, or isnt it giving any? Did you take off the throttle body when you cleaned it?

 

[StreetCreeper]

Hi I have a 03 Expedition FX4, just did
the spark plugs, and coils. Now it's got a
a little bit rough Idle. Also cleaned the
throttle body, MAF sensor, IAC. And still
Have a crappy idle and loss of power.
Need help.

Maybe you either busted an old vacuum line such as the PCV or possibly just left off a hose somewhere? The PCV lines are weak spots especially up near the throttle body.