Engine miss

[2000GT]

So a had a catalytic converter break up in the housing so it was rattling like crazy. I drove it to work this morning with no issues. However it developed a severe dead miss on the way home and a severe loss of power. My dad and I cut the cat off to see if that cleared up the miss thinking it was clogging the exhaust. I cannot tell if that did the trick because one side it open header practically and the other is closed. To me it seems like it is still there. I did a compression check and it's perfect. Do you think I have a bad coil pack as well?

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[somethingclever]

I would pull the whole exhaust and confirm pieces of the cat aren't clogging anything.

Although a dead miss sounds like something else. A bad coil pack would throw a cel for misfire for that cylinder.

[Dan B.]

My bad coil didn't throw a CEL. Even drove it about 100 miles to see if it would kick the light on. Never did. Took it to a buddy and ran a cylinder balance test with his Snapon diagnostic scanner. That showed that #7 was the dead hole.

I also had no problems leading up to when it instantly died. Installed new clutch and was out on a leisurely drive with the family. About 200 miles into breaking in the clutch I decided to romp on it a bit. Just then the COP died and it ran like crap the rest of the way. Wifey was growling all the way home. She was more annoying than the misfire!

[2000GT]

Lol. I am going to pick up a coil pack on the way home to have it handy once I replace the exhaust in case it's still has that miss.

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[Dan B.]

I've had my 2001 F150 for 12yrs and only put one coil on it. Had the GT for three weeks and it puked one. I think they are almost something you need to have in the glove box.

[2000GT]

Well, the cats must have been severely plugged. I replaced the old catted X pipe with a new one from BBK. The miss is gone and I have to tell you, it must have been plugged for quite sometime as it is running WAY better. It feels so strong now that it feels like I gained about 30HP! I'm happy! Now all I have to to do is get it cleaned up really well before I put it away for the season.

[somethingclever]

glad to hear