Skip the auto shop - Our mechanics make house calls

Q: What other damages occur when the idler pulley freezes?

asked by on

I'm looking to buy a 98 legacy gt. The owner claims that the idler pulley froze and will need an engine swap altogether. He claims that with a new timing belt, it will run but it won't drive. What other damages occur when the idler pulley freezes? What causes it to not be able to drive anymore? What repairs specifically would it require if i wanted to repair it myself?

My car has 200000 miles.
My car has a manual transmission.

A: An idler pulley will never prevent an engin...

An idler pulley will never prevent an engine from ever running again. An idler pulley just has a ball bearing inside of it that can dry out over time causing it to get hot. If the issue is not resolved soon the pulley will eventually seize up and not spin anymore. Simply having the belt and the idler pulley replaced should resolve this issue and the vehicle should run and drive just fine. If the owner says the vehicle is not drivable, there may be other issues that he/she is not being upfront about.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: My car alarm no longer flashes when activated

Hey there, thanks for writing in about your 2004 Subaru Impreza WRX. If you replace the security module, it will most likely fix your the alarm, but you will need to reprogram the keys to get the new alarm to...

Q: Loss of power and rattling from back under part 1998 BMW 323

Hello - I believe you have 2 unrelated problems: the loss of power, and the rattle. I believe your loss of power problem is either a failing fuel pump, or possible a clogged catalytic converter. The fuel pump issue would...

Q: How Do Belt Pulleys Work?

Your car has two main types of pulleys, crank pulleys and accessory pulleys. The crank pulley delivers motion to the other pulleys by means of either a serpentine belt or a v-belt, and they in turn activate the accessories in...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...