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Knocking in front end f-150 4wd

When I drive I get a knocking sound from my front end. It only happens when Im moving. It was only once in a while when I was turning now its constant. It can be felt on the floor board of the truck and lightly in the wheel. I was told it might be the ball joints but I jack the tire only up and try to pry it it doesnt seem to move at all. I do know that the truck has been leveled before by cranking on the torsion bar and one of the cv axles has been replaced but I dont know which one. I used to get a very bad shimmy when I would hit a bump on a paved road going between 20-40 mph. It got to the point I would have to almost stop for it to. I drove the truck about 1200 miles straight and it hasent done it since but now it kocks when driving constantly. 1997 F-150 4wd 190000 miles.

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  • gbc_cmc May 11, 2010

    Knock when hit bump or when wheels go round and round? The wheels on the bus go round and round... sorry, I digres. Ball joint are not as easly checked as in old days... jacking the tk up and prying dones not really work since when you lift the tk it unloads the suspention and in some designs actualy puts a great deal of spring tention through the ball joint making that type of test worthless. Test when loaded (weight on wheel) Try (will take two people) bouncing the front end up and down while cupping the ball joint in your hand feel or use a mechan's stethascope. Then test same way with someone turning the stearing wheel back n forth. It may be more likly that the other suspention mounts or bussings even tie rods can have the same movement or rattle. So while feeling for the problim fell ALL moving parts (sway, tie, idler, shock, A-arm mounts) NOTE you will not likly hear the noise in this test, it will be more a feel since the tk in not likly to be driving down the highway.



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Posted on Jan 02, 2017

  • 208 Answers

SOURCE: 1998 ford explorer font end

Has the car been in an accident? You may have to replace the upper ball joints as well. And you will have to get an alignment after that. I would get the tire set correctly before I started changing bearings. Of course it may be that the bearing is so bad that that is what is causing the wheel to lean so badly?
With the car jacked up, can you move the wheel laterally - it should be very tight.

Posted on Aug 10, 2008

  • 783 Answers

SOURCE: front end clunk

The problem could be caused by the jounce bumper rubbing against a dry strut plate. Here is a pic of it.

Posted on Feb 02, 2009

  • 2559 Answers

SOURCE: Loud squeaking noise from front end wheel or axle area.

It can be from both the struts and any piece of frame or body that has a rubber mount.(most likely struts and A arms making the noise)

Please rate this a fixya

Posted on Feb 04, 2009

  • 147 Answers

SOURCE: clunking sound while driving

inner joints a plunging joints have problems acceleration jolts from a dead stop... the outer rezzepa joint clicks usually when turning thats the balls falling out trunion..... not usually clunking ... possible wheel bearings they are pressed in on front wheel drives... or even a tranny mount maybe almost sounds like somethings loose ...its hard to diagnos online..srry i need more info about the symptoms...

Posted on May 07, 2009

  • 776 Answers

SOURCE: how do i remove the drivers side cv axle on a kia.

The answer is NO... you do not pry it 'OPEN." I'm assuming you've already removed the cotter key and the 1 1/4" nut from the axel hub? The DOJ (Dual Offset Joint) that is inserted into the differential side of the trans has a retaining ring which "COMPRESSES" when you pry the DOJ out using a large pry bar or extra large screwdriver. The same 'COMPRESSION' happens to the ring when you install the new axel.... once fully inserted, the ring 'EXPANDS' inside the differential splines creating enough tension to keep the DOJ in place.

Posted on Jun 20, 2009

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