Ford Automobiles banner

1 - 5 of 5 Posts

·
Registered
Joined
·
44 Posts
Discussion Starter #1
I have a 94 F-150 with a inline 6 motor, 5speed. It has a hard start, and a rough idle. Sometimes it will start, and then imediatly drop to about 400rpm and then eventually die again. once its on and running it has a rough idle. I replaced the plugs last spring, and they look fine, no carbon. Fuel related problem?
 

·
Registered
Joined
·
1,184 Posts
Do the basics first.Start with the ign and check wires,plugs,cap and rotor.Then I would look at fuel system,then look for vacuum leaks.Most likely you have a vac leak by the sound of it.
 

·
Registered
Joined
·
5 Posts
Did you also change the distributor cap/rotor?? On my 66 Fairlane, inside the distributor cap at the top is a small round carbon?? dome. This had worn down flush to the plastic top. Changed out the cap and rotor and my rough idle and serging miss went away.
 

·
Registered
Joined
·
4,352 Posts
1 - 5 of 5 Posts
Top