Close
a missing in my truck
1990 Ford F-350

A missing in my truck

(1990 Ford F-350)
my truck idles fine but when I go down the road it gets a mis in it I changed the plugs, coil, wires, cap, rotor, cap and plugs and still cant find the problem anyone out their help me out I hope someone has some ideas
Ask a Question
1 answer & 1 comment
Popular Answer
of Gillespie's Auto Service on December 15, 2013
Are the #7 and #8 cylinder plug wires running side by side? If so separate them in the plug wire retainers.

Try running the KOEO (Key On Engine Off) and KOER (Key On Engine Running) tests and post all the codes (including any historical codes) that are generated.

Sign in to reply
on December 15, 2013
thank you I will try that tomorrow and get those codes out didn't know I could do that my self
Oil Leak Diagnosis
$88 - $111 Learn More
of Gillespie's Auto Service on December 15, 2013
Are the #7 and #8 cylinder plug wires running side by side? If so separate them in the plug wire retainers.

Try running the KOEO (Key On Engine Off) and KOER (Key On Engine Running) tests and post all the codes (including any historical codes) that are generated.

Sign in to reply
on December 15, 2013
thank you I will try that tomorrow and get those codes out didn't know I could do that my self

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
Misfire runs sluggish up hills (no power) changed pcm.from flagshipone inc new coils..& injectors..and fuel...
When i press the button to shift into auto 4 or 4hi i can hear the transfer MOTOR shifting however the light on the...