Has anyone else had this issue... my truck has a rough idle when it gets up to normal operating temperature. only problem is that it does this every now and then. i think i have it narrowed to three things, EGR, fuel filter, or coil/plugs. any advice??

 

What truck?
How many miles?
What mods?
Service history (breif)?

 

04 FX4 3valve 5.4l. no mods 152000 km. as for service history, unknown as i had bought it used from a dealer. i just did the oild and before i took the truck home i had the dealership change all the other fluids.

 

Start with cleaning the IAC-it's easy, and the maf then go from there. Are there any codes?

 

have you gotten any codes ? sounds like a plug ti me mine dones the same it the #7 plug that gets wet

 

No IAC on that one. Fuel filter and clean the throttle body. What's 152 kms?

About 94,500 miles so a plug change is due IMO.

 

Like others have said.. cleaning the throttle body and MAF should help a lot..

How to Clean MAF-2005 5.4

Cleaning the Throttle Body

 

My bad!:o

 

thanks guys...it was the fuel filter and throttle body....i am still gonna do plugs, but the current repair seems to have made a difference