Hello I have a 2004 f150 that has missfire issues. When I first start the truck it runs fine after it warms up it start to have misfires especially when acceleration. Runs fine when idle any help would be appreciated

 

- confirm this is a new style ‘04 (and not a heritage)

- identify engine and mileage

- scan for codes and post exact code #s

- give some background on how long you’ve had it, status/age of: plugs and boots/springs (on coils), and last throttle body cleaning.

 

maintenance history if known ?

 

Autozone or other will read codes for free, takes five minutes.