2.4 tc misfiring

[jeffharley]

I have a 96 twin cam 2.4 liter, it started misfiring so I replaced the sparkplugs but it still is misfireing. I'm looking for suggestions before I just start throwing parts into this.

[NEp8ntballer]

how many miles?

[jeffharley]

121000 miles, fuel pump replaced and filter, also just replaced the plugs. the miss is intermittant

[MT-2500]

Originally Posted by jeffharley

121000 miles, fuel pump replaced and filter, also just replaced the plugs. the miss is intermittant

What kind of plugs did you feed it.
Does a scanner show what cylinder is missing?
Are the coils and ign cover good shape?
MT

[jeffharley]

I put in autolite platinum plugs, coils look fine if appearence means anything. boots and cover look fine also.

[jeffharley]

Engine code did not specifically state which cyl. was misfiring just that it detected misfires.

[MT-2500]

Originally Posted by jeffharley

I put in autolite platinum plugs, coils look fine if appearence means anything. boots and cover look fine also.

If you ae using autolite plugs.
First thing to do is.
Pitch the autolite plugs in the trash can and get the AC Delco plugs that the good book calls for.

If you can feel a engine miss on it.
Check coil output spark to plugs and check the plastic coil cover for shorting across.
Look at it for carbon tracking or a burnt spot.
The coils and cover is a weak spot on them.
To test coil output I get a long set of plug wires and flip the cover over and check spark output from each coil tower.
Let us know how it goes.
MT

[jeffharley]

I'll pick up the plugs in a day or two and post

[jeffharley]

I replaced the plugs with ac's and also replaced the coil cover. It now runs perfect

[MT-2500]

Thanks for posting back with how it went.
Glad all is well.
MT