Comments on: 3 Causes of Idler Pulley Noise (and Replacement Cost)

By: Sean

Sean — Mon, 10 Oct 2022 12:55:37 +0000

Can you please describe the loud noise? Otherwise I’m completely guessing as to what the problem is.

If it’s a loud squeal, your serpentine belt could be loose. If your serpentine belt is in bad shape (cracks or broken ribs), you should just replace it entirely.

By: Gala mixon

Gala mixon — Fri, 07 Oct 2022 22:12:36 +0000

I hear a loud noise in my car when my air conditioner is on
But when I turn it off,I don’t hear it,can you help me,please???

By: Sean

Sean — Thu, 17 Mar 2022 16:52:04 +0000

In reply to morrison. Can you tell where the groaning noise is coming from? Does it increase with engine RPM or as you drive faster? Does turning the steering wheel change anything?

By: morrison

morrison — Tue, 15 Mar 2022 22:19:13 +0000

i hear a squeaking or groaning noise when i start my toyota corolla 2010 model and drive for about 5minutes.the noise therefore increases but reduces when i stop the car

By: Sean

Sean — Mon, 18 May 2020 22:49:31 +0000

In reply to Brian King.

You’ll need to pinpoint the exact location of the coolant leak before driving too much further. It could simply be a coincidence, but since the idler pulley failed I am inclined to believe the coolant is coming from the weep hole on the water pump.

Water pumps are designed with a weep hole to inform you the seal is leaking and the water pump is nearing its failure point. It’s best to address this as soon as possible so you don’t overheat the engine.

Before driving again, make sure your coolant is topped up. Check the overflow reservoir to make sure the coolant is at the proper level. Once the engine has cooled completely, check to make sure there is enough coolant in the radiator as well. If you don’t have coolant on hand, you can use distilled water.

Never open a radiator when the engine has been running, as the coolant will be very hot and under pressure! Allow the car to cool completely before touching the radiator cap.

By: Brian King

Brian King — Sat, 16 May 2020 07:18:16 +0000

Hello, I have a 2001 Mercury grand Marquis and my idler pulley just seized up, I immediately drove car home which wasn’t far at all driving it easy and it did not overheat, but after I parked it, I noticed coolant leaking under the engine area, again the engine did not overheat and it looked like the coolant was leaking from a hose behind the water pump so not sure it was damaged or anything else damaged.