Hi Scotty, I have a 1986 Ford f150, auto_4wd_ 80000miles? It sat for 10 years. We cleaned tank, new pump and FPR. It runs really rough at idle, but improves when warmed up. It act like your giving it…

Taurli

Hi Scotty, I have a 1986 Ford f150, auto_4wd_ 80000miles? It sat for 10 years. We cleaned tank, new pump and FPR. It runs really rough at idle, but improves when warmed up. It act like your giving it gas than letting off over and over. Replaced map, fixed vacuum leak to EGR. Plugs & wires good, injectors all fire. All of the emissions has been removed including cat convertor. Any ideas? Thank you

Comments (6)
No. 1-4
dil 89
dil 89

Maybe it's the ignition module or something in the ignition system itself

Scotty Kilmer
Scotty Kilmer

Editor

sitting 10 years, all fuel system will be clogged. May need new injectors or a pro flush of them all

Taurli
Taurli

Considered that, is there anyway around it.

Jackofall
Jackofall

Removing that stuff may be cause of fluctuations