Ticking coming from front of 4.0. - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > Ticking coming from front of 4.0.

Jeep Grand Cherokee Mirror - Side ViewJeep Grand Cherokee Headlight AssembliesThe Retrofit Source / JW Speaker LED Headlight GROUP BUY!

Reply
Unread 04-28-2013, 09:13 AM   #1
Tuffyace
Registered User
1998 ZJ 
 
Join Date: Apr 2013
Location: Columbus, Oh
Posts: 21
Ticking coming from front of 4.0.

I have a 98 ZJ and I have a ticking sound coming from front of engine. The ticking sound started or became noticeable after I cleaned the throttle body and ran Seafoam internal engine cleaner through to remove the carbon. I have read a few post that say the change the oil and use Lucas or Mystery Oil along with a higher weight oil. Other posts say change the lifters and other items that would require to pull the head. The performance has not gone done and everything seems to work fine. Can anyone shed some light on this situation?

Tuffyace is offline   Reply With Quote
Unread 04-29-2013, 07:24 AM   #2
Derph
Registered User
1994 ZJ 
 
Join Date: Apr 2011
Location: Del rey oaks, Ca
Posts: 173
image-3998886128.jpg

Here
Derph is offline   Reply With Quote
Unread 04-29-2013, 07:32 AM   #3
wj4play
Web Wheeler
 
wj4play's Avatar
1999 WJ 
 
Join Date: Apr 2010
Location: Des Moines, Iowa
Posts: 1,191
It's going to explode ... Be prepared .. My ticking turned into cracked piston skirt which ate itself ... Two separate motors

rebuild now before it recycles itself...

Sent from iPhone
__________________
99 Grand, 37" and mostly factory - Raised tank and trimmed fenders etc
wj4play is offline   Reply With Quote
Unread 04-29-2013, 08:46 AM   #4
bigb229
Registered User
1998 ZJ 
 
Join Date: Feb 2010
Location: ga
Posts: 679
x2 on piston skirt cracked.....I just rebuilt the 4.0 after discovering the #3 skirt was in the oil pan
bigb229 is offline   Reply With Quote
Unread 04-29-2013, 01:06 PM   #5
wj4play
Web Wheeler
 
wj4play's Avatar
1999 WJ 
 
Join Date: Apr 2010
Location: Des Moines, Iowa
Posts: 1,191
First you think it's a lifter . Then u think its a pulley ticking . Then you use some fancy STP motor hunny . Then change the oil.... When it actually starts knocking you try to race it home so your not stranded ... Then BOOM

Sent from iPhone
__________________
99 Grand, 37" and mostly factory - Raised tank and trimmed fenders etc
wj4play is offline   Reply With Quote
Unread 04-29-2013, 02:27 PM   #6
Tuffyace
Registered User
1998 ZJ 
 
Join Date: Apr 2013
Location: Columbus, Oh
Posts: 21
If I pull the head will i be able to see if the piston is damaged or the skirt is cracked or is that something you need to take the piston out to see.
Tuffyace is offline   Reply With Quote
Unread 04-29-2013, 04:56 PM   #7
Tuffyace
Registered User
1998 ZJ 
 
Join Date: Apr 2013
Location: Columbus, Oh
Posts: 21
Thanks for all the advice but figured out what the issue was. The spark plug in cylinder 1 came loose once I tightened that back up it sound like the engine I come to love.
Tuffyace is offline   Reply With Quote
Unread 04-29-2013, 05:24 PM   #8
bigb229
Registered User
1998 ZJ 
 
Join Date: Feb 2010
Location: ga
Posts: 679
Lucky fella.....might wanna play the lottery tonight.
bigb229 is offline   Reply With Quote
Unread 04-29-2013, 05:34 PM   #9
Tuffyace
Registered User
1998 ZJ 
 
Join Date: Apr 2013
Location: Columbus, Oh
Posts: 21
Never good at the lottery but have been winning pretty good at the casino. Thanks again fir the support.
Tuffyace is offline   Reply With Quote
Unread 04-29-2013, 06:39 PM   #10
wj4play
Web Wheeler
 
wj4play's Avatar
1999 WJ 
 
Join Date: Apr 2010
Location: Des Moines, Iowa
Posts: 1,191
Lol lucky dog.. How many miles on theclock?

Both motors of mine did it at 150k

I think the weak skirt is on the 99-04 motors never heard the older ones cracking

Sent from iPhone
__________________
99 Grand, 37" and mostly factory - Raised tank and trimmed fenders etc
wj4play is offline   Reply With Quote
Unread 04-29-2013, 07:06 PM   #11
Tuffyace
Registered User
1998 ZJ 
 
Join Date: Apr 2013
Location: Columbus, Oh
Posts: 21
I have just over 150k. Its been a great engine. Really looking forward to having it for a while.
Tuffyace is offline   Reply With Quote
Unread 05-07-2013, 01:06 AM   #12
xrunndonex
Registered User
1994 ZJ 
 
Join Date: Dec 2012
Location: coffeyville, Kansas
Posts: 1,666
Quote:
Originally Posted by Tuffyace View Post
I have just over 150k. Its been a great engine. Really looking forward to having it for a while.
My 94zj i6 has 218k so if you treat the motor good you should be fine
xrunndonex is offline   Reply With Quote
Unread 05-07-2013, 01:10 AM   #13
micellis
Registered User
1998 ZJ 
 
Join Date: Sep 2011
Location: Lakewood, Colorado
Posts: 136
Just rolled over 220k myself, have a slight tick and the oil pressure switch stopped working. Good weekend ahead of me to fix it

Sent from my Galaxy Nexus using JeepForum
micellis is offline   Reply With Quote
Unread 05-07-2013, 08:56 PM   #14
Tuffyace
Registered User
1998 ZJ 
 
Join Date: Apr 2013
Location: Columbus, Oh
Posts: 21
This is the only issues I've had with the motor in 9 years except for common wear items. They made a great motor when they designed the 4.0.
Tuffyace is offline   Reply With Quote
Unread 05-07-2013, 09:21 PM   #15
xrunndonex
Registered User
1994 ZJ 
 
Join Date: Dec 2012
Location: coffeyville, Kansas
Posts: 1,666
I'm thinking about seafoaming mine but sorta scared. Always told most additives are bad and cause problems. seafoam is different though so unno
xrunndonex is offline   Reply With Quote




Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.