97 4.2 engine missfiring

Reply Subscribe

Thread Tools

Search this Thread

Dec 20, 2006 | 03:59 PM

#16

nascar88ford

Senior User

Joined: Aug 2005

Posts: 319

Likes: 1

No, it is always a different one. The most common is cylinder #3 though...... Could the coil pack be sending out too much power to cause them to crack?

Dec 20, 2006 | 04:15 PM

#17

KingRanchMan02

Posting Guru

Joined: Oct 2005

Posts: 2,209

Likes: 1

From: Louisville, Kentucky

Is it clean and dry in the plug well for the cracked plug?

Dec 20, 2006 | 07:25 PM

#18

projectSHO89

Hotshot

Joined: Jan 2004

Posts: 19,768

Likes: 1,082

From: St Louis

Quote:

Originally Posted by nascar88ford

No, it is always a different one. The most common is cylinder #3 though...... Could the coil pack be sending out too much power to cause them to crack?

Coil pack only sends out enough power for the plug to fire, then it stops...

Steve

Dec 21, 2006 | 12:38 AM

#19

nascar88ford

Senior User

Joined: Aug 2005

Posts: 319

Likes: 1

That is what I thought but just wanted to make sure......And yes, the plug is dry and the same color as the rest of them.... The funny thing is my cousin has the same problem with his 98 F-150....Can't figure it out. The "Service Engine Soon" light has never come on. I thought it was supposed to blink or something when a misfire was occuring. Maybe it has to be continuious. Sorry to take over your thread Two Slow, our problems seem to be somewhat similiar....Thanks for your input guys...
-Matt

Dec 22, 2006 | 12:17 PM

#20

two slow

Thread Starter

New User

Joined: Feb 2006

Posts: 24

Likes: 0

I put new plugs and wires on it today. Judging be the plugs that came out of it I don't think that was the problem. I'll take her out for a good dive here in a little while.