Ratcheting sound when I accelerate...

Joined
Jun 26, 2005
Messages
11
Location
Charlotte, NC
I'm getting a ratcheting sound when I accelerate. Could this be coming from my front diff? I plan on checking all the fluids over the long weekend anyway, but I was just curious what you folks thought.

Thanks.
 
Joined
Nov 21, 2004
Messages
144
Location
wishing I was in Briland
This is a stupid question, but you don't say...does your rig have a locker in the front? (Just don't know how new the rig is to you...)

Is it really a ratcheting, or could it be described as a bunch of marbles rattling in a muffled can? I've been hearing that lately when I accelerated, and I think it's engine pinging. Suggesttion I got was to retard the timing--haven't had a chance to try yet.
 
Joined
Dec 7, 2002
Messages
1,639
Check your levers

I had a bad experience once with a Ford pickup where my son had bumped the in/out lever for the 4WD so that it was just partially engaged. The shop pulled the entire transmission and T-case only to discover the lever. Mucho bucks down tube.
 

tcb

 
Joined
May 2, 2005
Messages
2,766
Location
Swinging from a vine.
Check to see if both of your locking hubs turn freely. Mine made a similar noise when my passenger side hub was siezed up, it showed being in the "free" position, but once I got it apart I realized that the pawl was bent to hell and the hub was kind of half-a$$ locked. I bent the pawl back into shape and reassembled, no more noise and the hub operates smoothly. Just a thought.
 
Joined
Jun 26, 2005
Messages
11
Location
Charlotte, NC
The sound is definitely a ratcheting sound. I know the marbles in a can sound and I think that might be spark knocking. That's not what I am hearing however. I checked the hubs, and they both move smoothly and are in the free position. I will check my 4WD stick to make sure it's in 2H.

The truck is fairly new to me, so I'm not sure if it has a locker on the front diff. I was under the impression that a locker would only make noise when you are turning due to the wheels spinning at different speeds. I didn't think they made noise when you were driving straight.
 

Doc

 
Joined
Apr 26, 2004
Messages
5,918
Location
Utah
It sounds like a roller coaster ride on the way up the BIG hill, right? click click click click....

My rig does it too, and ONLY under load, right? It's an exhaust leak. No big deal.

Well, that's what it is on my truck.
 

3pits

 
Joined
Jan 14, 2005
Messages
2,230
Location
NE GA
I had the same problem,, :
I had the exhaust leak happend and was really noticable at idle if I got out to open a gate

then I realized my headers were leaking, and were noisy in the first place

but when it happend while I was accelerating, I found a stick stuck in my ujoint and it hit the underside of the body when I accelerated....

good luck
 

lowtideride

 
 
Joined
Sep 29, 2003
Messages
7,611
Location
The Sunshine State
just spin one wheel and see if it spins the same direction as the one you are spinning if it does you got a locker...if it doesnt you dont. if it is an exhaust leak, you can use sea foam to find it.
 
Joined
Sep 4, 2005
Messages
235
Location
Clear Lake Shores, Texas (Kemah)
yeah, how does seafoam work to find exhaust leaks? I just bought mine (fj60)and noticed a exhuast leak at either the intake/exhaust gasket or the smaller one where the exhaust header flange bolts to the exhaust pipe. But then again it could be a cracked exhaust header (doubtful) but you never know. It would be nice to figure out a way to find the leak before I start tearing into it.

So post up and let us know how this seafoam stuff works.

Thanks James G.
 
Joined
Jul 31, 2005
Messages
282
Location
Kodiak, Alaska
When I was in High School my friends and I would take thoes really long zip ties and strap it to the drive shaft that way when the started to drive they would hear the click click click noise and it would only get faster as they drove faster. and when they stopped it stopped. Great trick to play on friends. If I had a local friend with a LC I would do it to his to see if he would post a question about it on here... Thoes were the days!!!!
 
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