4.0 ticking and misfiring at certain RPM
#1
Newbie
Thread Starter
Join Date: Oct 2009
Posts: 11
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1999
Model: Cherokee
Engine: 4.0 L6
4.0 ticking and misfiring at certain RPM
Just yesterday, my XJ started doing this. After running for about 5 min or so, when you rev the engine, it has a slight tick at about 1800 RPM. It also "shudders" like it's missing or misfiring. The noise doesn't get louder at higher RPMs, but I never revved it that high since the problem started. I recorded a clip, but it's kinda hard to hear:
I got this thing put back together earlier this week from replacing the head and has been driven a few times since then. No problems until yesterday.
I did pull the valve cover off and checked the torque on all the rockers. All were still right where they should be. I also made sure all the bolts for the manifolds were tightened down as well. Could this be a bad lifter or something a little bit more serious?
I got this thing put back together earlier this week from replacing the head and has been driven a few times since then. No problems until yesterday.
I did pull the valve cover off and checked the torque on all the rockers. All were still right where they should be. I also made sure all the bolts for the manifolds were tightened down as well. Could this be a bad lifter or something a little bit more serious?
#3
Newbie
Thread Starter
Join Date: Oct 2009
Posts: 11
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1999
Model: Cherokee
Engine: 4.0 L6
Thread
Thread Starter
Forum
Replies
Last Post
96Co
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
12
01-10-2024 06:17 AM
jeefersjeepers
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
09-20-2023 12:51 PM
jmarzo
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
16
10-18-2022 04:11 PM
Calikingcrawler
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
09-07-2021 07:14 AM
Ye Ol' Cherokee
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
10-09-2015 10:29 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)