Cam phaser or spark knock
Thread Starter
|
Laughing Gas
Joined: May 2002
Posts: 873
Likes: 37
From: Ohio
Cam phaser or spark knock
While on a road trip, I noticed that my truck seemed to be exhibiting signs of pre-ignition. It happens when under even a slight load, i.e. going up grades. I remember reading that cam phasers make kind of a pinging noise also, so I'm not sure what I am hearing. I usually put in some Lucas gas additive, but haven't used it for maybe 10k miles or so. I plan to adding some fuel system cleaner to see if that helps. I have 2010, 4.6 with only 62,000 miles. Has anyone else run into this?
More Turbo
Joined: Jun 2014
Posts: 719
Likes: 92
From: Asheboro, NC
One of the things conspicuously absent from my owners manual that was well known "in the olden days" was if under heavier-than-normal load, try one grade octane higher. If it goes away it's normal pinging though some maintenance may be desirable. If it doesn't go away dig deeper to find the problem.
There's a lot of variables that have to be asked about: fuel octane used, what % alcohol, how's your maintenance, i.e., spark plug maintenance, when did you last replace the air filter? Darn near anything could cause what you're hearing, time to start eliminating possibilities.
There's a lot of variables that have to be asked about: fuel octane used, what % alcohol, how's your maintenance, i.e., spark plug maintenance, when did you last replace the air filter? Darn near anything could cause what you're hearing, time to start eliminating possibilities.
Thread Starter
|
Laughing Gas
Joined: May 2002
Posts: 873
Likes: 37
From: Ohio
One of the things conspicuously absent from my owners manual that was well known "in the olden days" was if under heavier-than-normal load, try one grade octane higher. If it goes away it's normal pinging though some maintenance may be desirable. If it doesn't go away dig deeper to find the problem.
There's a lot of variables that have to be asked about: fuel octane used, what % alcohol, how's your maintenance, i.e., spark plug maintenance, when did you last replace the air filter? Darn near anything could cause what you're hearing, time to start eliminating possibilities.
There's a lot of variables that have to be asked about: fuel octane used, what % alcohol, how's your maintenance, i.e., spark plug maintenance, when did you last replace the air filter? Darn near anything could cause what you're hearing, time to start eliminating possibilities.
Thread
Thread Starter
Forum
Replies
Last Post
Im50fast
Modular V10 (6.8l)
7
Oct 11, 2015 07:44 AM
