Jeep Cherokee Forum

Go Back   Jeep Cherokee Forum > Technical Discussion > OEM Cherokee Tech
Register Forgot Password?
Register Photos FAQ Members List Social Groups Search Today's Posts Mark Forums Read GarageVendor DirectoryvBLive
Search

Welcome to Cherokee Forum!
Welcome to Cherokee Forum,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
submit to reddit
 
Thread Tools Search this Thread Display Modes
Old 09-23-2008, 03:53 PM   #1
Newbie
 
Join Date: Sep 2008
Posts: 8

View Redjeepster's Photo Album My Photos
Cherokee
Question knocking sound from bellhousing?

I have a 95' cherokee with a automatic. After my jeep gets up to running temp a knocking sound starts coming from the bellhousing area. It only makes the sound at idle speeds (brake applied or not). At first I though is was a rod bearing, but after closer listening it's definetly coming from the bell housing area. Could there actually be something wrong with the flexplate or torqueconverter that would make that sound?.
Redjeepster is offline   Reply With Quote
Old 09-23-2008, 07:28 PM   #2
CF Veteran

 
Howler_GT's Avatar
 
Join Date: Jul 2008
Location: Schnecksville, PA
Posts: 1,213

View Howler_GT's Photo Album My Photos
94 XJ Cherokee
Default

The autos are known for loose torque converter bolts.

Easy fix, in itself.
Have to remove the inspection cover on the front of the bellhousing.

Tighten up 1 bolt.
Turn motor (usually by hand w/big screwdriver)
Tighten next bolt.
Turn motor
Tighten bolt.

Put everything back together.

IF the noise still persists, mostlikely it is not coming from bellhousing.

While engine is COLD, shake the living daylights out of the catalytic converter.
Listen for anything that remotely sounds like a rattle.

XJ's are also known for faulty catalytic converters.
The catalyst inside breaks into smaller pieces. These pieces actually look like charcoal briquettes. And can sound like maracas inside the converter housing.
This is also an easy fix....replace catalytic converter. Great if you need to replace your exhaust system.
__________________
Howler_GT
Howler_GT is offline   Reply With Quote
Old 09-23-2008, 07:43 PM   #3
Senior Member
 
JeepersCreepers's Avatar
 
Join Date: Jul 2008
Location: Orlando, FL
Posts: 659

View JeepersCreepers's Photo Album My Photos
1992 Cherokee
Send a message via AIM to JeepersCreepers
Default

Quote:
Originally Posted by Redjeepster View Post
I have a 95' cherokee with a automatic. After my jeep gets up to running temp a knocking sound starts coming from the bellhousing area. It only makes the sound at idle speeds (brake applied or not). At first I though is was a rod bearing, but after closer listening it's definetly coming from the bell housing area. Could there actually be something wrong with the flexplate or torqueconverter that would make that sound?.
If your bolts are loose in the torque converter use some locktite. Locktite will hold on to those bolt really well. Whenever I build an engine I always use locktite. So remove that cover plate and check your bolts. Also when your tightening them down use a torque wrench and torque the bolts to 25ft lbs if there 10mm bolts or 42ft lbs if there 12mm bolts.
__________________
1992 Jeep Cherokee Sport.
4wd NP231. PORC HD SYE. Rusty's Track Bar. Rusty's Drop Pitman Arm. 6.5" Rough Country Lift. Rocky Road CAD. 35" BFG All Terran Tires. 16x8 Crager Soft 8's. Hella 500 Lights. Steel Braided Brake Lines


2004 Dodge Durango SLT

3" Lift Kit. 33" Maxxis Buckshots. 17x8 Crager Soft 8's. Westin Bull Bars. Off Road Lights. Dual Air Filter Intake.


Jeepers Creepers where did you get those peepers,
Jeepers Creepers where did you get those eyes
JeepersCreepers is offline   Reply With Quote
Old 09-23-2008, 08:47 PM   #4
Newbie
 
Join Date: Sep 2008
Posts: 8

View Redjeepster's Photo Album My Photos
Cherokee
Default

Thanks for the advise...I'm hoping that's all it is. I'll give a update after I look at it this weekend.
Redjeepster is offline   Reply With Quote
Old 09-23-2008, 08:50 PM   #5
Senior Member
 
JeepersCreepers's Avatar
 
Join Date: Jul 2008
Location: Orlando, FL
Posts: 659

View JeepersCreepers's Photo Album My Photos
1992 Cherokee
Send a message via AIM to JeepersCreepers
Default

Please do. If thats not the problem let us know so we can help figure out what else it could be.
__________________
1992 Jeep Cherokee Sport.
4wd NP231. PORC HD SYE. Rusty's Track Bar. Rusty's Drop Pitman Arm. 6.5" Rough Country Lift. Rocky Road CAD. 35" BFG All Terran Tires. 16x8 Crager Soft 8's. Hella 500 Lights. Steel Braided Brake Lines


2004 Dodge Durango SLT

3" Lift Kit. 33" Maxxis Buckshots. 17x8 Crager Soft 8's. Westin Bull Bars. Off Road Lights. Dual Air Filter Intake.


Jeepers Creepers where did you get those peepers,
Jeepers Creepers where did you get those eyes
JeepersCreepers is offline   Reply With Quote
Old 12-20-2009, 11:00 PM   #6
Newbie
 
Join Date: Dec 2009
Posts: 9

View 90whitelimited's Photo Album My Photos
Cherokee
Default

i have a 1990 limited cherokee auto 4.0 that i got yesterday, the noise is annoying ande feared it could be worse then the flex plate.....do i have to drop the tranny in order to tighten flexplate bolts?
90whitelimited is offline   Reply With Quote
Old 12-21-2009, 09:37 AM   #7
Junior Member
 
Timber Wolf's Avatar
 
Join Date: Sep 2009
Location: Vancouver, Wa.
Posts: 92

View Timber Wolf's Photo Album My Photos
1991 Cherokee
Default

Quote:
Originally Posted by 90whitelimited View Post
i have a 1990 limited cherokee auto 4.0 that i got yesterday, the noise is annoying ande feared it could be worse then the flex plate.....do i have to drop the tranny in order to tighten flexplate bolts?
No. Just remove the inspection cover.
__________________
LIVE YOUR LIFE SO THE PREACHER WON'T HAVE TO LIE AT YOUR FUNERAL!
Timber Wolf is offline   Reply With Quote
Old 12-21-2009, 10:16 AM   #8
Junior Member
 
Join Date: Jan 2009
Posts: 36

View seanf's Photo Album My Photos
Cherokee
Default

JeepersCreepers: Which locktite would you advise the blue or red? I think I have the same issue as well.

sean
seanf is offline   Reply With Quote
Old 12-22-2009, 12:52 AM   #9
Newbie
 
Join Date: Dec 2009
Posts: 9

View 90whitelimited's Photo Album My Photos
Cherokee
Default

thanks timberwolf, i did that today but that did not resolve the issue. Im pulling the tranny tomorrow to replace the flexplate and locktite everything. vancouver huh? thats where i got the jeep.
90whitelimited is offline   Reply With Quote
Old 12-22-2009, 06:48 AM   #10
Newbie
 
Join Date: Sep 2008
Posts: 8

View Redjeepster's Photo Album My Photos
Cherokee
Default Cracked flex plate....

Well...I know i took a long time to responed...so I apologize. I found that the Flexplate was cracked from one bolt to another, causing the flexplate to "pop" or "knock". It was an easy fix once I got the correct parts; a new flexplate from a jeep dealership and a Crankposition sensor located on the top of the bellhousing. It broke during the installation.

PLEASE READ; Do not try to use cheap off-shore parts for these jeeps....there were so many changes during the years...due to the changes of ownership of the "jeep" name. After trying a cheap replacement (made in Mexico) my jeep was running on 3 cylinders due to the position sensors located on the outer-ring of the flexplate. They did not match the original flexplate and caused the computer to receive false crank position data...which caused the jeep to run crappy. Once I installed the correct flexplate (from Jeep), two different ones for the same year, and a new crank position sensor, She ran like a dream
Redjeepster is offline   Reply With Quote
Old 12-22-2009, 10:11 AM   #11
CF Veteran
 
95Cherokee's Avatar
 
Join Date: Feb 2009
Location: Houston Tx.
Posts: 2,115

View 95Cherokee's Photo Album My Photos
1995 Cherokee
Default

How much was the flex plate from the dealership?
__________________
There's a hero in every CHerokee.
95Cherokee is offline   Reply With Quote
Old 12-23-2009, 12:38 AM   #12
Newbie
 
Join Date: Dec 2009
Posts: 9

View 90whitelimited's Photo Album My Photos
Cherokee
Default

ok....i might sound like a idiot but how many bell housing bolts are there? Dont have a manual so trying my best. I should probably go get one. But as of right now the jeep is on ramps in the garage torn apart ready to drop the tranny, how much did the new flexplate cost from jeep? did you order it off line? Any helpful tips in order to remove and or install the new flexplate?
90whitelimited is offline   Reply With Quote
Old 12-24-2009, 07:45 AM   #13
Newbie
 
Join Date: Sep 2008
Posts: 8

View Redjeepster's Photo Album My Photos
Cherokee
Default

I don't remember how much the flex-plate cost at the dealership. I do remember the difference in price between the "cheap" one I ordered on-line and the one I got threw Jeep (made in canada) was maybe $10 dollars more.

When I order threw Jeep, they needed my VIN # because there were two different flex-plates available for my 95' 4.0l with the AW4 automatic tranny. The only way to get the right one was by using the VIN #.

As far as bolts for the bell housing....maybe 5....three on the top and one on each side...don't remember. Don't forget to detach the flex-plate from the torque converter...you won't be able to pull the tranny out.
Redjeepster is offline   Reply With Quote
Old 12-24-2009, 05:54 PM   #14
Newbie
 
Join Date: Dec 2009
Posts: 9

View 90whitelimited's Photo Album My Photos
Cherokee
Default

redjeepster, could you give me a link or website name so i can order my flexplate from jeep? i only want to have to do this once so might as well do it right. also, has anyone used wheel spacers to gain width of the tires? read about it somewhere but not sure if it was a good idea. Did the automatic cherokees come stock with a transmission cooler?
90whitelimited is offline   Reply With Quote
Old 12-25-2009, 05:41 AM   #15
Newbie
 
Join Date: Sep 2008
Posts: 8

View Redjeepster's Photo Album My Photos
Cherokee
Default

As far as a web-site....I don't have a good one. The first flex-plate I order was threw a website called something like "auto-parts"...but that Flex-plate turned out to be completely wrong. The only reliable source I can give is to physically go to a Jeep/dodge dealership with your VIN#. If that's not possible, maybe you can call your closes dealership and order from them and have it sent to you.

As far as a transmission cooler....yes the automatic jeep comes stock with one. It's located within your Radiator. The Jeep's share the radiator to cool the engine coolant and transmission fluid. It work's fine for normal driving...however, if your plan on pulling your max gross weight for a long road trip or participate in extensive/severe of road fun....then invest in a external cooler and install it in-line with your existing cooler. If you live in a cold climate area it's best to install the external cooler inline with your stock cooler, this allows the radiator fluid to "warm up" or "transfer" heat to your transmission fluid. This is needed in colder climates. If you live in florida or something similar...then you could just us the after-market "external" cooler by it's self.
Redjeepster is offline   Reply With Quote
Old 12-25-2009, 05:41 AM
 
 
 
submit to reddit
Reply

Tags
automatic, knocking, noise, transmission
Go Back   Jeep Cherokee Forum > Technical Discussion > OEM Cherokee Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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
Clunking/Knocking from front end suspension adam01 Grand Cherokee Tech 14 12-11-2011 12:52 PM
weird sound Belto OEM Cherokee Tech 8 11-29-2008 10:43 PM
crazy sound from front of car when in 4wd moby OEM Cherokee Tech 16 10-15-2008 12:52 AM
Sound System big*blue*cherokee* OEM Cherokee Tech 10 07-21-2008 09:36 AM
Knocking in Rear dnaxj OEM Cherokee Tech 6 10-24-2007 10:56 PM


All times are GMT -5. The time now is 06:50 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.5.2
This site is in no way affiliated with Jeep or Chrysler.

Emails Backup