[JayPelman08]

Hello. I have a 2005 Honda Pilot with 251,000 miles on it (a lot I know). Just the other day, the car starting making a very loud knocking/tapping sound when it is 1)idling and 2)under ~2500 RPMs. The noise goes away at >2500 RPMs.

I just had the oil changed and the timing belt has less than 50,000 miles on it. However, from what I’ve read, this may be a problem with the timing belt tensioner. Does anyone have any thoughts?

 

[plplplpl]

A video where you can hear the sound clearly will help you get more helpful answers.

 

[Sleepwalker65]

If it’s a vampire asking to come in, don’t give him permission and you’ll be safe.
...
Seriously though, it is probably a bad motor mount.

 

[can]

Take the accessory belt off and listen. If the sound is gone then start inspecting idler and tensioner pulley, alternator, PS pump, and AC compressor.

PS: Why can I not spell today???

 

[Berr3555]

 

[Berr3555]

That was my sound and end result, usually the tensioner knocking got a much faster rate than that.

 

[Tahoefever]

Take the accessory belt off and listen. If the sound is gone then start inspecting idler and tensioner pulley, alternator, PS pump, and AC compressor.

PS: Why can I not spell today???

There is no accessory belt what vehicle were you thinking of ?

 

[cnelson0641]

There is no accessory belt what vehicle were you thinking of ?

I'm pretty sure he is referring to the serpentine belt (AC compressor, power steering, alternator, idler).

 

[Tahoefever]

I'm pretty sure he is referring to the serpentine belt (AC compressor, power steering, alternator, idler).

Yah i know just trying to see if this was one of those late night I cant sleep what the hell go online moments

 

[pittip]

Did you find out what was causing the knocking sound? My 2007 just started making the same noise.