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Is it safe to drive with a bad idler pulley?

Is it safe to drive with a bad idler pulley?

So, how long can you drive with a bad idler pulley? The safety recommendation is not to drive the car at all and take it to a mechanic immediately. You should be concerned if the vehicle makes squeaking or rattling noises. The car can still run for months or break after a few days.

What causes serpentine belt noise in Ford truck?

If you lube a belt it changes the frequency of the sound the belt makes to one you can’t hear but will not drive the pulleys fast enough and you may end up with a dead battery, dim lights, poor AC, or high engine temps, etc. The slippage and lubricants work together to produce heat in the belt which will destroy the belt rapidly.

Why does my serpentine belt Squeak in cold weather?

Whatever problem your serpentine belt is facing, colder temperatures can exacerbate them. As those problems get worse, the noises get louder and more annoying. Of course, cold weather can cause squeaks and squeals to come from any number of components in your vehicle.

Why does my serpentine belt make a flash?

-The bearings in the tensioner and idler pulleys can go bad. To test this put some chalk or whiteout on the edge of those pulleys so it makes a bright “flash” you can see when it rotates. If the chirp is in time with the flash on one of the pulleys most likely you have a bad bearing in that pulley.

Why are the pulleys on my Ford truck making noise?

This is because the old belt was slipping and has polished the pulleys or “glazed” them. So before you replace that noisy belt scrub all of the pulleys well with a scotch brite pad, or a good wire brush to remove the glaze and rough up the surface.

Why does my idler pulley squeal when I Turn on the engine?

Another common symptom of a possible issue with the idler pulley is squealing from the engine belts. If the surface of the idler pulley wears, or the pulley seizes or binds it may cause the engine belt to squeal as a result of it rubbing against the surface of the pulley.

If you lube a belt it changes the frequency of the sound the belt makes to one you can’t hear but will not drive the pulleys fast enough and you may end up with a dead battery, dim lights, poor AC, or high engine temps, etc. The slippage and lubricants work together to produce heat in the belt which will destroy the belt rapidly.

What makes a serpentine belt squeal when accelerating?

Serpentine belts are a great invention but unfortunately they drive everything on a modern engine which places a lot of load on them. When your belt displays any of the following: -squeals when accelerating. -or any combination of the above.

This is because the old belt was slipping and has polished the pulleys or “glazed” them. So before you replace that noisy belt scrub all of the pulleys well with a scotch brite pad, or a good wire brush to remove the glaze and rough up the surface.

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Ruth Doyle