Showing articles & questions for topic
pulley

Related articles

Symptoms of a Bad or Failing Water Pump Pulley
Common signs include physical damage to the water pump pulley, extensive wear on the water pump, grinding sounds, and the engine overheating.
How to Buy a Good Quality Idler Pulley
The idler pulley system drives a car’s alternator and is part of a belt and pulley system that also covers power steering, the air compressor, and other devices. The pulley is essential;...
Symptoms of a Bad or Failing Idler Pulley
Common signs include a damaged bearing or pulley, squealing from the engine area, and visibly worn pulleys.
How Belt Pulleys Work
There are two main types of car pulleys: crank pulleys, and accessory pulleys. Most pulleys are driven by a main crank pulley, which is bolted onto the crankshaft. When the engine is operating, the...
How Long Does a Crankshaft Harmonic Balancer Last?
The crankshaft harmonic balancer is also known as the crank pulley damper. It is connected to the crankshaft on the engine and reduces vibrations that originate from your engine. In addition, it...
The Mechanics of Cars: Simple Machines in Automobiles
Simple machines are single, mechanical devices that help improve the daily life of humans by allowing them to work faster, easier, and more efficiently. Simple machines are considered...
How to Replace Your Car’s Idler Pulley
A serpentine belt is guided by an idler pulley. Repairing a bad pulley involves removing the belt, replacing the pulley, and reinstalling the belt.
How to Replace a Power Steering Pump Pulley
A power steering pump pulley helps you turn the steering wheel with ease. If broken, it should be replaced to ensure a seamless drive on the road.
How to Replace a Water Pump Pulley
The serpentine belt or drive belt drives an engine’s water pump pulley, which rotates the water pump. A bad pulley leads to a failure of this system.

Related questions

Question
AC clutch making squealing noise
Of course, make sure the oil and refrigerant charge are correct. Too much of either will create an excessive load on the compressor. Also, check the operating pressures to see if they are within an acceptable range. Check belt alignment...
Question
A/C V-belt keeps going bad within six months.
Hi there. Check the angle of the V-belt as its mounted on the air conditioner pump. For the belt to burn off or decay that fast, either the belt is too tight, too loose, or the pulley is offset from...
Question
Ac pulley faulty
Hello. If you choose to not use the air conditioning, there is no issue with bypassing the compressor altogether. There are several options for you to choose from when it comes to bypass pulleys. Most of them are available online....
Question
My serpentine belt & pulley fell off
Hello there, a variety of failures will cause your 2004 Ford Crown Victoria to have a drive belt and pulley fall off. The steering will become difficult when the drive belt comes off the engine as the power steering pump...
Question
Trying to find the best way to change a tensioner pulley.
Hi there. The best thing to do is get a serpentine belt tool to remove the belt. Then you can get the tensioner out of the vehicle. You may have to remove the inner fender to the vehicle to reach...
Question
Loud roaring sound from right lower side when in drivers seat 2001 BMW 540i
Hi there - I suspect something driven by the serpentine belt has seized, putting a shock load on the belt, and snapping it. Could have been the AC compressor or compressor clutch (lower right front of the engine), power steering...
Question
Crankshaft pulley not turning
The crankshaft damper has a broken rubber insulator and no longer turns the outside of the pulley moving the serpentine belt. The accessories are not being turned causing the loss of power steering, charging and any other accessory that is...
Question
Defroster and heater blows cold air while idling - 2005 Ford Escape
Hi there - the lack of heat from your HVAC system could be a couple of things: bad thermostat, heater control valve, or air in the cooling system. If the engine come up to proper temperature and stays there (i.e....
Question
Noise coming from power steering belt area.
The serpentine belt should be removed and then the engine run momentarily to see if the noise goes away. If the noise goes away, obviously the cause is one or more faulty rotating elements in the belt circuit. A mechanic...
Question
What is the cost to replace the tensioner pulley, idler pulley, and the drive belt?
Billing question sent to CS for the cost to replace the tensioner, pulleys, and the drive belts.
Question
New timing belt broke?
Timing belts are rubber based products. Rubber deteriorates with age and that deterioration can be accelerated by storage conditions. I have seen belts vended that are 6 years old or older, which is well past a reasonable interval. Consequently, if...
Question
I'm having problems with the serpentine belt, is it caused by my power steering hose?
This is quite likely not a power steering pump or a rack and pinion problem, as neither of these would cause the serpentine belt to fall off. The rack and pinion is a part of the power steering system; however,...
Question
How much will it cost to tighten the tension pulley and repair power steering leak?
Hello there, you have several different issues going on with your 1999 Pontiac Bonneville. If the tensioner pulley is loose, it most likely needs replaced as it has become damaged on the inside and tightening it will not fix this....
Question
I have a wobble on the pulley and an oil leak, is it going to need a main bearing?
Hi there. The two symptoms you're describing (the front oil leak and the crankshaft pulley wobble) are two of the best indicators that a professional mechanic should use to diagnose that the issue is the pulley or the seal behind...
Question
The car through a serpentine belt
If the coolant leak still exists, the recommended service would be a leak diagnostic(https://www.yourmechanic.com/services/coolant-is-leaking-inspection). It is possible that a seized water pump bearing can throw the belt but all other causes, including bearing roughness in additional pulleys, have to be...
Question
What's the best way to get bolts off of the water pump pulley
I will usually try to break the bolts free from the pulley before I remove the belt. Sometimes you can put a little extra tension on the belt by pressing on the tensioner, while using another wrench to break the...
Question
Does my car have two belts? One for the ac pump that can be eliminated?
Hello. Thank you for writing in. When it comes to bypassing a belt pulley, the system is designed to utilize that pulley in order to work correctly. Despite how many belts you have, that pulley must be compensated for. The...
Question
What could happen by driving without a bolt on a pulley?
The consequences in regard to the pulley depend on which pulley was vandalized (there are quite a few on a engine). If it was the crank pulley, such could fall off (eventually) and if it does cause a fair amount...
Question
my serpintine belt snaped, i noticed the power steering pulley was bent i re placed it but am not sure if the pulley should spin
If there is no drive belt on the pulley that is on the power steering pump, you should be able to turn the power steering pump pulley freely and easily by hand. If the pulley (shaft) does not turn, that...
Question
serpentine belt keeps breaking
The belt is either too tight or too loose, pulleys (including that on the harmonic balancer), the tensioner, and accessories are out of plane, and/or the belt driven accessories are binding, that is they are not turning freely because the...

Need a mechanic?

Our certified mobile mechanics make house calls in over 700 U.S. cities. Fast, free online quotes for your car repair.

Get a quote

Post a question and get free advice from our certified mechanics.


Ask a question