Squeezing noise after engine wash?

2014 SUBARU LEGACY

114,000 MILES • 2.5L • 4 CYL • 4WD • AUTOMATIC

FADZ101

MEMBER
1 POST

There is a squeaking noise coming from my engine after having the engine washed. The noise got better after spraying the belt with wd40 however it has become really terrible.

Oct 20, 2023 at 2:12 PM

JACOBANDNICKOLAS

✓Experienced Mechanic
110,246 POSTS

Hi,

If the belt was wet, it could have caused the noise. However, WD40 is a lubricant. It will allow the belt to slip more easily.

The belt tension is controlled via an automatic belt tensioner. Is the belt tight? If it is and the belt is wet with oil (WD 40), it will likely need to be replaced. If you replace it, before installing the new one, make sure to check the belt pulleys with something like brake cleaner.

I attached the directions below for removing and replacing the belt. Let me know if this helps.

Take care,

Joe

See pics below.

Images (Click to enlarge)