New member!

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Shay

New Member
Joined
Aug 5, 2019
Messages
3
Reaction score
0
hey everyone! My name is shay. Have a 2004 Jeep Liberty for about 3/4 years now. Joined in because recently I have had a multiple engine misfire for a while now and seems to be getting worse. I’ve changed o2 sensors, converters, fuel packs to spark plugs and just seems to be getting worse. Is anyone else know what I could do to help it??
 

Shaggy

Active Member
Staff member
Administrator
Joined
Mar 17, 2010
Messages
862
Reaction score
62
Location
Arizona
hey everyone! My name is shay. Have a 2004 Jeep Liberty for about 3/4 years now. Joined in because recently I have had a multiple engine misfire for a while now and seems to be getting worse. I’ve changed o2 sensors, converters, fuel packs to spark plugs and just seems to be getting worse. Is anyone else know what I could do to help it??

Welcome to the forum! Were the spark plugs in bad shape when you pulled them?
 

LibertyTC

Well-Known Member
Staff member
Moderator
Joined
Oct 24, 2008
Messages
9,185
Reaction score
1,831
Location
B.C. Canada
Welcome to the Forum Shay.
What P codes are you getting?
 

Shay

New Member
Joined
Aug 5, 2019
Messages
3
Reaction score
0
The old spark plugs were gapped way too much. And I’m getting a P0300 which is multiple/random engine misfire.
 

LibertyTC

Well-Known Member
Staff member
Moderator
Joined
Oct 24, 2008
Messages
9,185
Reaction score
1,831
Location
B.C. Canada
Random misfires can be a PITA. The Jeep likes copper core plugs.
Did you use these?
You must be registered for see images attach
 

Shay

New Member
Joined
Aug 5, 2019
Messages
3
Reaction score
0
Random misfires can be a PITA. The Jeep likes copper core plugs.
Did you use these?
You must be registered for see images attach
I got platinum plugs and gapped them at about .042
 

LibertyTC

Well-Known Member
Staff member
Moderator
Joined
Oct 24, 2008
Messages
9,185
Reaction score
1,831
Location
B.C. Canada
The jeep may not like the plugs you have in there.
The KJ specifications as posted above is for copper core, and gap at .040 is best, start there.
 
Top