Have a sound as I accelerate?

[raguza123]

I get a Chatering sound while I accelerate from a stop for about thru 2 gears, or if I climb a hill it'll cahtter til the truck is not laboring up the hill.
I was wondering what would cause this, my engine seems to run good, idles OK and it's been going on for awhile now, I have some time so I can look into it. Does anyone know what would be causing it to chatter during acceleration?

 

[shane96ranger]

Is it pinging? What octane of fuel are you using?

 

[4.0B2]

where is the noise coming from?

 

[Snoranger]

Is it pinging? What octane of fuel are you using?

SOHCs have a knock sensor. It shouldnt ping.


Probably timing chain rattle.

 

[raguza123]

It's not a ping. It sounds like a chattering, metal rattling against metal.
I am afraid to admit it's the timing chain, it sounds like the front of the engine.
I don't know how long it's been going on, it could be 3 yrs now it's been doing this.
is it gonna break?
How hard is it to change the timing chain?

 

[Snoranger]

Its been like that for 3 years and NOW youre worried about it breaking?!!?!?!

 

[Rowdy Fitzgerald]

I'm guessing it's that clack that most trucks make when it's in the in between point of dying and taking off. Try giving it a lil more throttle when you take off and waiting for a lil longer to get the rpm's higher before you shift to 2nd.

 

[Snoranger]

I'm guessing it's that clack that most trucks make when it's in the in between point of dying and taking off. Try giving it a lil more throttle when you take off and waiting for a lil longer to get the rpm's higher before you shift to 2nd.

WTF are you talking about?

 

[Rowdy Fitzgerald]

The sound a motor makes when you're taking off and it isn't getting enough fuel and is about to stall. Both of my 2.9's would do it especially on a hill if I had the truck loaded down. My old 350 would do it in 3rd gear when I was hauling a load of horses and I didn't get the rpm's high enough before shifting.

 

[Rowdy Fitzgerald]

Thought about it a second and realized I generalized by saying all motors. What I meant was the sound a motor with a manual trans makes when it's about to stall out. Does that make more sense?

 

[Snoranger]

Thought about it a second and realized I generalized by saying all motors. What I meant was the sound a motor with a manual trans makes when it's about to stall out. Does that make more sense?

I know the noise youre talking about. That happens when you bog the engine way down. He's said it happens through 2 gears. Do you really think he's been bogging the engine though 1st and 2nd gears for 3 years?

Hes got an '02 4.0l, which means SOHC. They are well known to have timing chain issues. Do you still think he hasnt learned to drive his truck in 3 years, or do you think he has a very common timing chain issue?

 

[Rowdy Fitzgerald]

I know the noise youre talking about. That happens when you bog the engine way down. He's said it happens through 2 gears. Do you really think he's been bogging the engine though 1st and 2nd gears for 3 years?

Hes got an '02 4.0l, which means SOHC. They are well known to have timing chain issues. Do you still think he hasnt learned to drive his truck in 3 years, or do you think he has a very common timing chain issue?

I don't know how he drives that's why I suggested something for him to try. The fact that it's been happening for 2-3 years and the motor hasn't quit on him made me think that if it was the timing chain it would have failed by now. Changing his driving habits as a test would be a simple experiment and he wouldn't be out any money unlike tearing the front of the motor off would be. Also I'm assuming he's not a kid and doesn't go slamming gears or hauling butt every where and that's why I suggested what I did.

 

[--weezl--]

ladies! that's enough!

i'm with roudy actually, check the shift points first... there's a half decent chance the truck is bogging because maintenance hasn't been done or a problem with the engine, causing a lack of power (fouled plugs, ect)

 

[adsm08]

There is an updated set of timing chain tensionsers. Go to your local Ford dealer and get a set of those, and some new intake gaskets because you have to take the intake off the get at the rear one.

I have seen them shut up a very old, very noisy engine.

 

[raguza123]

I don't think the plugs have been changed, the wires are original, and the gas filter too.
I usually changed them, but been out of work for awhile now.
It sounds more like a chatterinwhen I take off and it disappears when there drag is less on the engine. I know if it was a timing chain, it wouldn't have lasted 3 yrs. it would have let go, and I figure it would have by now, it doesn't do it all the time, the idle is still smooth, it's only when I take off from a stand still then it stops after a couple of gears or if I punch it it will do it then stop again.
I read SOHC are famous for chains breaking?
Or is it lack of matainence?