Timing chain rattle on startup
Thread Starter
|
New User
Joined: Oct 2010
Posts: 10
Likes: 0
Timing chain rattle on startup
Hello everyone, this is my first time with a question, so please bear with me if I don't do it right. I have an 08 f350 super duty 5.4l 3v. I have had a timing chain rattle on cold starts for about a year or so. Both vct solenoids were changed last year, and last week I decided to pull the timing cover to see where the rattle was. The right side chain had slack, while the left side was tight. I bought a new tensioner and the rattle went away for about 1 day, then it returned again(only a slight rattle now). There are no other issues with the engine, it runs like a champ. Any ideas as to why it still rattles on start ups would be grately appreciated. I just recently changed from fram oil filters to motorcraft. My boss also likes to add lucas oil treatment to everything, despite my pleas to adhere to Ford's recommended 5w20 instructions. Thank You in advance for any help. Steve
Fleet Mechanic
Joined: Aug 2008
Posts: 1,446
Likes: 9
From: NE Iowa JD Country
there is differences between the 2v and 3v for timing chain components.
to the OP....the 1st thing is to stick with MC oil filters or better.... Fram does not fall into the category of a better filter....the modular engines 2v or 3v tend to be more sensitive about oil pressure and flow... the 3v more so because of vct solenoids and other components.
does it sound like diesel? might be a phaser issue too
have you tried to look for a TSB on this? try this but it may not be associated with the 3/4- ton units ??
TSB
09-23-7 LOW FREQUENCY ENGINE KNOCKING NOISE AT HOT IDLE
a link to another site Cam Phaser problem - Page 2 - F150online Forums
to the OP....the 1st thing is to stick with MC oil filters or better.... Fram does not fall into the category of a better filter....the modular engines 2v or 3v tend to be more sensitive about oil pressure and flow... the 3v more so because of vct solenoids and other components.
does it sound like diesel? might be a phaser issue too
have you tried to look for a TSB on this? try this but it may not be associated with the 3/4- ton units ??
TSB
09-23-7 LOW FREQUENCY ENGINE KNOCKING NOISE AT HOT IDLE
a link to another site Cam Phaser problem - Page 2 - F150online Forums
Senior User
Joined: Jan 2012
Posts: 126
Likes: 0
From: Phoenix AZ.
I have a 2003 model with the 5.4 it runs good, has great oil pressure I need to change the oil and i will use a motocraft oil filter. I am thinking of using 5w30 instead of 20 from reading on here it seems to work better it only makes the noise for a second or to when I cold start it. I haven't heard it when its been warm. I don't want to harm the motor but can't afford to throw money at it.
Fleet Mechanic
Joined: Aug 2008
Posts: 1,446
Likes: 9
From: NE Iowa JD Country
I have a 2003 model with the 5.4 it runs good, has great oil pressure I need to change the oil and i will use a motocraft oil filter. I am thinking of using 5w30 instead of 20 from reading on here it seems to work better it only makes the noise for a second or to when I cold start it. I haven't heard it when its been warm. I don't want to harm the motor but can't afford to throw money at it.
Thread
Thread Starter
Forum
Replies
Last Post
04navig8er
Modular V8 (4.6L, 5.4L)
3
Oct 28, 2015 08:19 AM
WXboy
2.6, 2.8, 2.9, 4.0 & SOHC 4.0 V6
2
Jul 15, 2004 05:11 PM
