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front end noise driving me crazy! help please!

Posted: Mon Feb 08, 2010 7:35 pm
by chopper69
have a rather loud and pronounced noise in the front end of my fj62 wagon. cannot detect on the highway almost at all but the slower the speed the louder and closer together the 'krunk' noises occur. Only seems to make these noises when the suspension is flexing. have greased nearly everything and still there. Can feel this noise all through the truck and visibly see the front end 'click' or move slightly when it occurs..

Took the swaybar and the shocks out and still the noise was there. Doesnt make a difference whether steering is at full lock or straight so i guess i can rule out cv's?(noise still present whether hubs are in or out) The noise seems to relate to suspension travel. I have greased the greasable shackles in the front also, no difference.

Tie rod ends seem ok but could probably be better.

Could these noises possibly be the front leaf spring packs loading up and releasing? I am at a loss..

Any help would be muchly appreciated. I am just trying to make sure that it is not something that is going to cause somthing to fall of or cause an accident etc!!

Posted: Mon Feb 08, 2010 7:42 pm
by mike_nofx
Could the locating bolt which goes through the leaves be broken?

Posted: Mon Feb 08, 2010 7:45 pm
by chopper69
god i hope not. my back is stuffed and i really dont want to be taking springs out. How can i tell without taking them out of the car?

Was wondering whether the u-bolts might need tightening??

Posted: Mon Feb 08, 2010 7:53 pm
by Matt_85Lux
chopper69 wrote:god i hope not. my back is stuffed and i really dont want to be taking springs out. How can i tell without taking them out of the car?

Was wondering whether the u-bolts might need tightening??
could be the U bolts

Posted: Mon Feb 08, 2010 8:45 pm
by BundyRumandCoke
Have you got splash guards around the bottom of the engine bay? I had an annoying banging in my front end, that was worse when 4wding, and driving slowly. I was buggered if I could find it. It was even worse if I was 4wding in reverse.

It turned out to be a drooping splash guard, one mount had fatigued through, and it was just clearing the front end. On suspension compression, the guard would hit the axle, and make a racket.

Posted: Tue Feb 09, 2010 6:55 am
by bazzle
as mentioned check U bolts.
Also could be the wrap clamps rubbing on side of springpacks.

Also have a look at steering box to chassis.

Bazzle

Posted: Tue Feb 09, 2010 7:57 am
by ludacris
Check your body mounts. They can be very noisy when loose or brocken rusted out bolts.

Cris

Posted: Tue Feb 09, 2010 12:40 pm
by tufflux88
ill have a quick look at it for ya if your in newcastle sometime
cheers

Posted: Tue Feb 09, 2010 12:46 pm
by nayto
id be thinking u bolts, or broken centre bolt. U bolts u usually can seen on the axle housing where theyve been moving...usually. Try see if theyre loose anyways. In regards to centre bolt, it can be very hard to see without pulling them apart sometimes

Posted: Tue Feb 09, 2010 12:52 pm
by chunderlicious
Just To put it out there. Check your steering damper out. They can make alot of noise if rooted or the bolts are loose

Posted: Tue Feb 09, 2010 1:21 pm
by MightyMouse
Know nothing about FJ62's.... but one of my vehicles had a annoying clunk that turned out to be the pads loose in the calipers - previous "brain surgeon decided" the locating spring clips weren't needed and it rattled off road.

Took a long time to find.........

Posted: Tue Feb 09, 2010 5:25 pm
by NISDEO
check to make sure the welds on the leaf spring perches arent cracked on the chassis, this happened to a mate i work with not too long ago, same kind of noise your pronouncing on the passendger side...


Scotty