SOURCE: wheel ticking
A couple things it could be.
1 : An axle joint clicking away (which would probably be under warranty anyways)
2 : A bearing can click like this when first starting to let go (some bearings don't last 5,000 miles when new due to flaws)
3 : Imperfection on the tire, causing a ticking like sound when a certain spot is hitting pavement.
4 : It could even be as simple as a brake bad vibrating which I've seen a few times!
SOURCE: ticking noise
A small exhaust leak can sound like a ticking noise during acceleration and can get better or worse as the system heats up. I had a similar problem when the engine was cold that was solved with a new exhaust manifold gasket.
SOURCE: 1999 GMC SAFARI VAN REAR END HUMMING
This rear end needs to be replace or re-built
This rear end needs to be replaced or re-built. The gears and or bearings are worn/shot. May be able to get a complete rear end from a Junk yard for much less, one in good condition. Good Luck
SOURCE: whining engine noise
If the noise increases when idling and reving up the engine then you must check on the engine pulley, the belt idler pulley, the water pump , alternator or the a/c. But if the noise increases when you are moving then you must check on the wheel bearings, the drive shafts and the inspection of the mudguards for tyre rubbing. If so you will have to jack up the car and check for faulty bearings, drives or tyres. SInce the noise can be traced to the point of generation , you will have to have a friend also to check on one side for pinpointing the sound and identifying the part. This must be easier to find and you can easily replace/repair/change the part concerned. Hope you try. Good day
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