Lifter Knock

Reply Subscribe

Thread Tools

Search this Thread

Apr 7, 2010 | 08:22 AM

trapper96

Thread Starter

Newbie

Joined: Apr 2010

Posts: 17

Likes: 0

From: NY

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?

Apr 7, 2010 | 09:49 AM

x91j

CF Veteran

Joined: Oct 2009

Posts: 5,390

Likes: 3

From: Chicago IL

Year: 1997

Model: Cherokee

Engine: 4.0 Straigh 6

maybe you didnt gap your spark plugs right and its causing a tick?

Apr 7, 2010 | 10:23 AM

RoyalXJ

CF Veteran

Joined: Jul 2009

Posts: 1,839

Likes: 7

From: West Deptford, NJ

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.

Apr 7, 2010 | 04:26 PM

trapper96

Thread Starter

Newbie

Joined: Apr 2010

Posts: 17

Likes: 0

From: NY

Year: 2000

Model: Cherokee

Engine: 4.0l 6

thanks

used bosch +2 plugs no gap needed, I gues I will check under the cover thanks!

Apr 7, 2010 | 04:27 PM

RoyalXJ

CF Veteran

Joined: Jul 2009

Posts: 1,839

Likes: 7

From: West Deptford, NJ

Year: 97

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by trapper96

used bosch +2 plugs no gap needed, I gues I will check under the cover thanks!

junk plugs. you should do some research before you use a plug like that

Apr 7, 2010 | 04:34 PM

LCFRJEEP

Seasoned Member

Joined: Nov 2008

Posts: 452

Likes: 0

From: Virginia

Year: 1997

Model: Cherokee

Engine: 4.0 H.O.

Yeah stick with Champion plugs. Jeeps seem to do better with Champion truck plugs

Apr 7, 2010 | 04:46 PM

UserID6095

Newbie

Joined: May 2009

Posts: 3

Likes: 2

Model: Cherokee

Quote:

Originally Posted by trapper96

used bosch +2 plugs no gap needed, I gues I will check under the cover thanks!

Thats your problem.

Trending Topics

AW4 Breather Tube to Case Fitting

10

5.6k
Is it safe to drill here.

2

85
Regearing expensive but worth it

23

1.8k
Transmission blowing fluid out of breather tube

94

155.7k
Mechanic near Monterey Peninsula

2

303

Apr 7, 2010 | 05:02 PM

djb383

CF Veteran

Joined: Nov 2009

Posts: 8,172

Likes: 17

From: The Republic of TEXAS

Year: 1998

Model: Cherokee

Engine: 4.0L HO

Champion copper..........didn't Model T's come with those?

Apr 7, 2010 | 07:52 PM

trapper96

Thread Starter

Newbie

Joined: Apr 2010

Posts: 17

Likes: 0

From: NY

Year: 2000

Model: Cherokee

Engine: 4.0l 6

Quote:

Originally Posted by trs80

Thats your problem.

Nice attitude, I'm new here good first impression

Apr 7, 2010 | 08:05 PM

#10

89Laredo

CF Veteran

Joined: May 2009

Posts: 10,436

Likes: 72

Year: 2000

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by trapper96

Nice attitude, I'm new here good first impression

Sarcasm? If so, I saw nothing wrong with that comment honestly.

Hes right though, stick with Champions. You need RC12LYC plugs for yours, IIRC (someone correct me if Im wrong, thats what my girlfriends 96 uses)

Apr 7, 2010 | 08:05 PM

#11

93XJLI

CF Veteran

Joined: Jan 2008

Posts: 3,671

Likes: 11

From: LI, NY

Year: 1998

Model: Cherokee

Engine: 4.0, bolt ons for days...

turn up the radio

Apr 8, 2010 | 07:38 AM

#12

trapper96

Thread Starter

Newbie

Joined: Apr 2010

Posts: 17

Likes: 0

From: NY

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!

Apr 8, 2010 | 07:51 AM

#13

RoyalXJ

CF Veteran

Joined: Jul 2009

Posts: 1,839

Likes: 7

From: West Deptford, NJ

Year: 97

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by trapper96

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!

get copper cores

Apr 8, 2010 | 07:54 AM

#14

McRay

Member

Joined: Feb 2009

Posts: 158

Likes: 2

From: Conroe, Tx

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.