Tapping noise

Reply Subscribe

Thread Tools

Search this Thread

Jul 18, 2018 | 02:17 PM

Kman17

Thread Starter

New User

Joined: Jul 2018

Posts: 1

Likes: 0

Tapping noise

Hi every one I'm looking to buy a 2001 f150 I have test drove and listened to the noise the truck has around 150000 miles on it it has no power loss and drives great but just for my peace of mind I would like to know ur guys opinions on it it will help me decide if I will buy the truck or not the sound is hardly noticeable when u first start the truck after it warms up u can hear it If the hood is open and it is never constant on the sound it's in the upper part of the motor passenger side please let me know what u guys think

Jul 18, 2018 | 09:12 PM

ondarvr

5th Wheeling

Joined: Mar 2008

Posts: 34

Likes: 0

From: WA

Sometimes the tapping sound can come from a loose spark plug, they can blow out if left loose. It may become more or less noticeable as it warms up.

Jul 19, 2018 | 12:01 PM

Chad T. Keogh

Senior User

Joined: Jul 2017

Posts: 278

Likes: 1

From: Penticton, BC, Canada

If it have variable valve timing, it is your cam phasers... VERY expensive! Or, maybe exhaust manifold. Maybe pick up a cheap stethoscope at a parts store so you can pin-point it.

Jul 19, 2018 | 10:32 PM

z31freakify

Hotshot

Joined: Dec 2012

Posts: 11,278

Likes: 1,658

From: Las Cruces New Mexico

I started two threads on the matter, two trucks, one was a knock sensor causing timing to go haywire when cold, and the other was worn out cam journals.