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Anonymous Posted on Jun 20, 2011

My differential on my ford falcon au series 2 is making a grinding noise at a certain rotation, there is plenty of oil so it maybe the axels, i have it up on stands and when its running the hubs look like they are whobbly as it rotates, any ideas

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  • Master 1,902 Answers
  • Posted on Jun 20, 2011
Anonymous
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Check the wheel bearings, if its not the wheel bearings then its your axles. A grinding noise would be a sign of bad wheel bearings. If the rear end is off the ground grab the top and bottom of the tire. Can you wiggle it REALLY good? If so bad wheel bearings.

  • Anonymous Jun 27, 2011

    yeah a friend said its probably wheel bearings, ive got everything off except the hub, it looks like i need a allen key (big one) to do this is this correct, and do the wheel bearing come as a whole to the hub or do i buy them seperately.

  • Anonymous Jun 27, 2011

    To remove the wheel bearings you are going to need a special puller to get them off.

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Hi I have a ford falcon au 2001 it keeps trying to stall when driving below 60km an hour and when I turn corners any ideas on what it maybe

could ve your diff trying to lock up.
have you checked the oil colour and level?
maybe you could have your gearbox oil and filters replaced and check for swarf in the oil.
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Hello my question is I have a 2002 ford explorer Im hearing a loud constant noise when accelerating and breaking just wondering if its my differential and do i have to replace it if its having problem

Noise usually indicates worn part. Lubricating it can help, but it won't solve the problem. Once a bearing starts to wear, it develops a flat spot on the bearing. If the wear is significant, rotating the tires individually off the ground will sometimes be enough to indicate if it's the wheel bearing ( you can hear/feel it at only one tire ) or a differential bearing ( you can hear/feel it on both sides of the same axel )

A bearing in the transmission or the transfer case will sound central to the vehicle...much easier to identify if a passenger in the vehicle can try to pinpoint the sound while the vehicle is being driven by someone else.
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Wheel bearing

If grinding noise is heard coming from front side, lift up both the front wheels and rotate the wheels one by one to listen to the sound, if any. If a noise is heard, replace the front wheel bearings as a set.
If the front wheels do not produce any abnormal noise when rotated, lift down the front vehicle. Lock the front wheels with blocks, release the hand brake. lift up the rear wheels and try to listen to the abnormal noise. If the noise is heard, replace the differential bearings and seals. Top up the differential oil to the mark.
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How do i replace diff oil in my au falcon

Ther is a plug on the differential
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Reset security code on AU Falcon

turn key to <acc> turn radio will blink err. leave on for at least half hour.err will be replaced by enter code.
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