Wobble on crank pulley. makes a noise. tighten, still wobbles, no noise, lasts for a day then noise back. 94 -- 3.1 td. cheers. steve.

no it is bad. 99%
new pump buy,
a real tech feels it belt off for lose bearings
or bend pulley
the blind here can't do that.
but bet the pump is bad PS.
no car told , no year.
the noise , is the best hint, bad bearing or wrong oil inside.
do not guess at the oil of wrong is used it foams up and whines.

make sure the pulley bolt is tight then check the pulley for being bent. if these 2 things are good then you may have a bent crankshaft at the pulley end or worn crank bearing causing it to wobble.

Possible water pump. Remove the belt and grab the pulley , wiggle and spin. Check the other pulleys as well.

Cranshaft pulley is bad,probably has rubber damper which is damaged or worn loose.Don't run it this way.Get the pulley replaced now. don-ohio

Hello: Remove the serpentine belt, see if the waterpump pulley wobbles/makes noise when you spin it. If thats not it then start the engine, belt still off see if noise is there also while engine is running see if vthe crankshaft pulley wobbles. Also check the A/C compressor pulley (engine off, belt off) spin it by hand and check for noise and wobble. If all the previous is ok then it could be the balance shaft front bearing and or the timing chain.

Was the timing belt replaced recently? If your crank pulley/harmonic balancer is wobbling, it is probably loose. Do not run the engine, if this part falls out, it will cause more damage.

Crankshaft Damper Pulley-- gone bad,replace it

Check all of the accessories that run off the belt. some may have loose or bent pulleys or the acessory itself may have come loose. Be careful to route the belt exactly as shown too. Tighten up or replace your wobbly pulleys.

The belt is automatically tensioned, if it wobbles you have a defective pulley or pulley bearing, check them all and replace as ness.

I don't have one. I have the same problem can someone help?