Forum Index
Jeep Horizons HomeLinksJeep Horizons Tech Write-upsJeep newsLand useContact

 Watched TopicsWatched Topics   FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Knock Knock,Whos there?

Post new topic   Reply to topic     Forum Index -> Grand Cherokee Forum
View previous topic :: View next topic  
Author Message

Joined: 23 Jun 2005
Location: quebec canada

PostPosted: Fri Feb 02, 2007 5:10 am    Post subject: Knock Knock,Whos there? Reply with quote

Well I had a bad feeling that the wife blew up the 4.0 liter motor in my 93 JGC yesterday when she got home all I could here was a really bad knocking sound coming from the front of the engine .It sounded like the wrist pin or crank bearing was gone,PS I have been a mechanic for over 15 years and have seen lots of bad motors and heard lots of knocking sounds,But this was bad and was ready to order anouther engine and thought I should really check it out.As a result with my stethiscope could only here the knock in the front very 1st cyland bad I might add.Well I removed the front drive belt in the thought that I have seen this before with a lot of fords that the harmonic or vibration damper was a culprit to making a pile of noise but this was a bad knock.Well after removing the belt and restarted the jeep all was perfect YAHOO.After looking and finding out that the problem was nothing more than the idler wheel that the belt runs on was shot the bearing hadlet go inside.Well called the dealer and they wanted $75.00 for the whole pully and they tell me they dont just sell the bearing so I bought just a bearing from my autoparts store for $8.00 replaced and problem solved.WELL moral to this story is dont give up so soon and make a bad call I know that this has fooled many people if you here a bad knock in the front of the engine it will come with no sign PLEASE remove belt and check again could be the same problem HOPE THIS IS OF SOME HELP TO SOMONE.
1967 chev shortbox stepside
1988 gmc 4x4
1989 gmc 2x4
1993 jeep grand cherokee
Back to top
View user's profile Send private message

Joined: 14 Oct 2006
Location: New Mexico

PostPosted: Sun Feb 04, 2007 9:02 pm    Post subject: Reply with quote

great post man!!!! thanks a bunch! i hope his saves some heads some loot!
RE,adj tb,cold air,str8 pipe to flowmaster,242,boredTBwspacer, msdboxwirescoilpump,moparpcm, Efan,5.9alte,sytem2sick,tirerack,oba
Back to top
View user's profile Send private message Yahoo Messenger
Display posts from previous:   
Post new topic   Reply to topic     Forum Index -> Grand Cherokee Forum All times are GMT - 8 Hours
Page 1 of 1

Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Visit for write-ups, forums and clubs

Jeep®, Wrangler, Cherokee, Liberty and Grand Cherokee are copyrighted and trademarked to Chrysler LLC. is not in any way associated with or endorsed by the Chrysler LLC.
All other content is copyright Jeep Horizons 2004-2008.
Tech write-ups Links Discussion board Land use News Site Map Terms of Use

Powered by phpBB © 2001, 2005 phpBB Group