Banging noise in 4wd -
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 > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > Banging noise in 4wd

Introducing MONSTALINER™ UV Permanent DIY Roll On Bed LineRubicon Express Suspensions from CCOR 706-207-4140Smittybilt Hard Tops @ Oconee Off-Road! 706-534-9955

Unread 07-21-2001, 06:30 PM   #1
Registered User
Join Date: Jun 2001
Location: utah
Posts: 22
Banging noise in 4wd

I just started having problems with my Wrangler in 4wd, (high and low) It makes a loud banging, or knocking noise whenever it's engaged and I'm moving forward, it seems to be coming from the transfer case. Any idea what this could be?

mikeyjph is offline   Reply With Quote
Unread 07-21-2001, 06:48 PM   #2
Registered User
Join Date: Mar 2001
Location: Michigan
Posts: 472
Check the u-joints on the front driveshaft - you may have lost a bolt on the saddle strap which holds the u-joint of the front driveshaft to the transfer case output. When you engage 4 wheel drive, the output shaft starts spinning and would throw the driveshaft all over the place if it's loose, making one heck of a banging sound. You wouldn't feel it in 2 wheel drive if its only the front driveshaft.
89' YJ - 4.2 - NV4500 - NP231w/sye - 1" Body Lift - 2 1/2" Rancho Suspension Lift - 31" Firestone MTR - AR Outlaw II - Tomken Bumpers F & R - Warn 8000 front - Warn 6000 rec. mount rear - FlowFit Seats - Tom Woods Rear & Custom 2" front driveshafts
FLHT_FXRS_YJ is offline   Reply With Quote
Thread Tools

Suggested Threads

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