5.0 Missing after plugs and leads change - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

NZ · 12-03-2003, 20:58

Ive changed the plugs and leads on the car after finally getting the right plugs but now the thing is missing!

At idle it misses occasionally but under any sort of load the thing misses steadily. Im pretty sure its only on one cylinder.

Plugs are NGK-R and the leads are Bosch. Its really annoying me now. Ive pulled all the plugs out and checked the gap, all are now 1.33mm gapped. One was way off but still about 1.45. It didnt change a thing. All the leads appear tight on the plugs and dizzy cap. The only other thing Ive done is used one of the feeler guages to clean the white crap tha had built up on the electrodes in the dizzy cap. Wheres the next place to look?

12-03-2003, 21:52

check the rotor. Inside the dizzy cap, there's a spring with an electrode on it, make sure that's ok, and check the dizzy shaft, and also check the dizzy module.

Keep checking those things off..

NZ · 12-03-2003, 22:45

All fixed. What happened space is especially at a premium where the #1 plug is. Basically my spanner didnt quite fit inthere and I must have cracked the porcilain on the plug when pulling the spanner out. The spark would have been arcking onto the head causing the miss.