2008 Wrangler 3.8 4dr Engine Knock - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > Community Forums > WF New Member Check In

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 01-27-2012, 08:06 PM
Thread Starter
Join Date: Jan 2012
Location: Medford, NJ
Posts: 23
Cool 2008 Wrangler 3.8 4dr Engine Knock

Hi Guys. I have been a mechanic for 28 years now. I have run training centers for Goodyear and Precision tune . I had been a master ASE technician for most of that time. I just bought a used 08 wrangler. Love it. Second Jeep I have owned. It has 22000 miles on it and I noticed a Small knock at start up. It only last for a second. I noticed a Mopar filter on it and wondered about the check valve in the filter. Since it is horizontaly located this would be my first guess. It also was 1/2 qt low but It was that way when I picked it up. No leaks from timing cover, and everything else is dry. After eading some other posts I have some advice to offer.

During engine builds its not uncommon for the rings to be improperly clocked. the should be placed at 120 degrees of eachothers ring gap.. I have seen this often over the years in high oil consumption vehicles. Just a thought for you guys. I will try the Wix filter for this engine and synthetic oil for the next oil change I do. I will post any updates on the knocking and consumption if it continues or if its corrected. Great job on the Forum guys..

lame is offline   Quote
Old 01-27-2012, 08:19 PM   #2
Templar's Avatar
Join Date: Dec 2011
Location: Maryland
Posts: 2,421
Welcome to WF

17' Wrangler Sport
2012 Wrangler (SOLD)
2012 Wrangler (SOLD)
U.S. Army 88-93
Templar is offline   Quote
Old 01-27-2012, 09:41 PM   #3
I am JD & It's my dream

WF Lifetime Member
WF Supporting Member
::WF Administrator::
JDsDream's Avatar
Join Date: Jan 2009
Location: The Peach State
Posts: 30,770
Welcome to the Forum
The kind of woman that when my feet hit the floor each morning the devil says "Oh Crap, She's up!"

To All Of Our Forum Veterans and Active Service Members.
Our Debt To You Is Greater Than We Could Ever Repay.
Thank You


Become a Supporting Member!
JDsDream is offline   Quote
Sponsored Links
Old 01-27-2012, 11:53 PM   #4
Join Date: Jan 2012
Location: Chicago
Posts: 20
thesanerone is offline   Quote
Old 01-28-2012, 04:58 AM   #5
blkrubi88's Avatar
Join Date: Nov 2009
Location: Clayton NC
Posts: 33,278
I can only please one person a day and today is not your day and tomorrow is not looking good either!

blkrubi88 is offline   Quote
Old 01-28-2012, 06:48 AM   #6
MrSig's Avatar
Join Date: Aug 2011
Location: Davie, Fl
Posts: 33,783
Welcome and enjoy the forum!
07 JKUSR to see my mods or Jeep in action go to http://www.aaof.us/jeep.htm
CEO of Black Sheep 4x4s org,
Member of CCJ, White Jeep Club Member #137.
MrSig is offline   Quote
Old 01-28-2012, 12:19 PM
Thread Starter
Join Date: Jan 2012
Location: Medford, NJ
Posts: 23
Thanks for the great welcome folks. I hope to contribute to the forums as much as possible.

lame is offline   Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Continued Hesitation Mystery Solved!! BuckNutz1070 TJ Tech Forum 21 10-14-2013 05:24 PM
2008 Jeep Wrangler make ticking noise from engine !!! Chiorny General Jeep Discussion 15 04-04-2013 05:42 PM
2008 Jeep Wrangler Unlimited - Ticking noise from engine when hit 2000 RPM Chiorny WF New Member Check In 3 09-16-2011 03:19 AM
UT: 2008 Wrangler Unlimited X JK TeraFlexed TeraFlex Classifieds Archive 4 09-06-2011 06:23 PM
Need help!! 40,000 mile 2006 wrangler engine fail mdubbs TJ General Discussion Forum 21 01-17-2011 11:03 PM

All times are GMT -5. The time now is 06:17 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.1
User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.

Jeepģ, Wrangler, Liberty, Wagoneer, Cherokee, Gladiator, Mopar and Grand Cherokee are copyrighted and trademarked to FCA US LLC.
Wranglerforum.com is not in any way associated with FCA US LLC.