Lifter Knock
04-07-2010, 08:22 AM
#1
Newbie
Thread Starter
Join Date: Apr 2010
Location: NY
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0l 6
Lifter Knock
Last night I changed the spark plugs and valve cover gasket on my 2000 Jeep Cherokee Sport 4.0l 6. After I finished the job I started it up and got a lifter knock that wasnt there before any ideas?
04-07-2010, 10:23 AM
#3
CF Veteran
Join Date: Jul 2009
Location: West Deptford, NJ
Posts: 1,839
Likes: 0
Received 7 Likes
on
7 Posts
Year: 97
Model: Cherokee
Engine: 4.0
if you didnt gap your plugs right it could cause i mis that sounds like a tap. or you may have gotten something under the valve cover when you had it off.
Trending Topics
04-07-2010, 08:05 PM
#10
CF Veteran
04-08-2010, 07:38 AM
#12
Newbie
Thread Starter
Join Date: Apr 2010
Location: NY
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0l 6
I didnt realize a plug could make so much difference, The plugs I used came with the jeep when I bought it time to stop by napa and get some champions!
04-08-2010, 07:54 AM
#14
Member
Join Date: Feb 2009
Location: Conroe, Tx
Posts: 156
Likes: 0
Received 2 Likes
on
1 Post
Year: 1996 & 2001
Model: Cherokee (XJ)
Engine: 4.0
Might try checking at night time to see if you have bad spark plug that causing the coil to jump spark to ground. Had less problems with Champions plugs on 4.0 engines.
04-11-2010, 05:48 PM
#15
Newbie
Thread Starter
Join Date: Apr 2010
Location: NY
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0l 6
Champions are champions!
I replaced the Bosch plugs with Champion Copper Plus plugs......Starts and no knock! Thanks to you all!!!!