Opinions needed
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New User
Joined: May 2006
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Opinions needed
Tess is sick.. Yes I named my truck, people name horses right. Good enough reason for me to name my truck. Anyhow, she is a 2000 F250 SD 5.4 with about 130K. I've taken great care of her since I got her at about 80k. I've had no problems untill now. This is the break down of EXACTLY what is happening
Starting from over night everything is fine.
Run truck, shut off.
Then when I start her back up there is a tatatatat coming from the passenger side of the engine. It is more intenese when I let off the gas.
The noise will only last for 20-30 seconds then it stops, and everything runs as normal.
I've talked to a few people and they suggest a sticky lifter.
I've changed the oil and added lucas oil additive which is supposed to help with dry starts, the noise is still there.
I would like to solve this problem before it gets worse.
I plan on keeping this truck till 300k and will do whatever it takes to keep her going.
Any and all suggestions are welcome.
Thanks!
Starting from over night everything is fine.
Run truck, shut off.
Then when I start her back up there is a tatatatat coming from the passenger side of the engine. It is more intenese when I let off the gas.
The noise will only last for 20-30 seconds then it stops, and everything runs as normal.
I've talked to a few people and they suggest a sticky lifter.
I've changed the oil and added lucas oil additive which is supposed to help with dry starts, the noise is still there.
I would like to solve this problem before it gets worse.
I plan on keeping this truck till 300k and will do whatever it takes to keep her going.
Any and all suggestions are welcome.
Thanks!
Senior User
Joined: Feb 2006
Posts: 245
Likes: 0
From: Carterville, IL
Is there any difference in the performance of the engine ? If you have a valve/lifter sticking you will be losing some compression and should see a difference in how it runs. I once had this problem but using new oil and additives isn't guaranteed. You can try taking off the valve cover watch to see which cylinder is sticky when running. Only go this far if you sure its a sticky lifter.
Elder User
Joined: May 2006
Posts: 616
Likes: 0
From: Tax Happy Hanover Pa
The "lifter's" in a Ford mod motor are really just a hydraulic cam "follower" as their are no pushrods. The cam basically sits on top if the valve w/ this follower between it and the valve. They are hydraulic so one could collapse and make noise but when that happened on my cousin's 4.6L 3 valve motor, we could faintly here it all the time. It never affected the performance but it was just annoying. I don't know man, sounds like something else to me. Can you isloate it to one cylinder or even one side of the engine?
Senior User
Joined: Jun 2003
Posts: 475
Likes: 1
From: La Habra, CA
Usually a lifter/follower would be noisy in the morning, and maybe the morning only. I would have guessed piston slap, but it would be there when cold in the morning. To me it pretty much rules out a bearing problem.
Maybe part of the timing chain adjuster assembly?
Could be a idler pulley bearing maybe, probably not.
When you shut it off after the first drive, how long does it sit before you start it again and hear the noise? Will it do it after sitting for a few seconds, or a minute?
The starter is on that side, but I have a hard time imagining it making that noise.
It's hard to diagnos noises described over the internet.
Eric
Maybe part of the timing chain adjuster assembly?
Could be a idler pulley bearing maybe, probably not.
When you shut it off after the first drive, how long does it sit before you start it again and hear the noise? Will it do it after sitting for a few seconds, or a minute?
The starter is on that side, but I have a hard time imagining it making that noise.
It's hard to diagnos noises described over the internet.
Eric
Last edited by etcetera; May 24, 2006 at 02:35 PM.
Postmaster
Joined: Jan 2005
Posts: 4,424
Likes: 12
From: BC Canada
Do you have all your exhaust manifold studs and nuts on them? Warping of the manifold can cause this and pop out bolts. Best way to see this is to wathc the truck on a cold morning on each side and see if you can see exhaust leaks while it warms up. I heard this leak and got to looking at mine and found 3 broken studs on one side and 2 on the other, at 120 K... If you change all the bolts to new stainless and have the manifolds machined yourself, not to bad a hit, but your nuckles will suffer....oh and likely a small decrease in beer supply especially if you have glutinous helper friends accesing your beer fridge!
