Knocking.
Thread Starter
Junior Member
Joined: Nov 2007
Posts: 2
Likes: 0
From: Moyock, NC
Knocking.
hey everyone,
first time on the forum. got a question. i have a 2001 F-150 4.2 V6 4x4 automatic flareside. as i drive my truck, about once to twice a minute it makes a loud ping under the cab. it rides find. i am haveing some troubles with the engine fire. it sometimes has a sputter in it. but that problem has been around for a while. ran sea foam through it a couple of times. full tune up. i even just put brand new catylitic converters on it. but the ping is new and it kinda worries me. its not affect the performance of the truck...... yet. any ideas?
first time on the forum. got a question. i have a 2001 F-150 4.2 V6 4x4 automatic flareside. as i drive my truck, about once to twice a minute it makes a loud ping under the cab. it rides find. i am haveing some troubles with the engine fire. it sometimes has a sputter in it. but that problem has been around for a while. ran sea foam through it a couple of times. full tune up. i even just put brand new catylitic converters on it. but the ping is new and it kinda worries me. its not affect the performance of the truck...... yet. any ideas?
