Slight clunk/jerk at takeoff
#1
Slight clunk/jerk at takeoff
2004 F-150 4X4 Lariat SCAB 3.73LS
Just have nearly 700 miles now. I cold me nit-picking, but I've been noticing a slight clunk in the driveline when I takeoff from a dead stop. I can't tell if it's coming from the rear end, transmission, or driveshaft. It does NOT feel like trans shudder though... thankfully.
Has anyone else had this issue and have any of you had it repaired? If I had to guess I'd say it was the driveshaft slip yoke, but I'm not positive.
Just have nearly 700 miles now. I cold me nit-picking, but I've been noticing a slight clunk in the driveline when I takeoff from a dead stop. I can't tell if it's coming from the rear end, transmission, or driveshaft. It does NOT feel like trans shudder though... thankfully.
Has anyone else had this issue and have any of you had it repaired? If I had to guess I'd say it was the driveshaft slip yoke, but I'm not positive.
#2
#3
#6
Just to give you guys a heads up, this is a problem the Super Duties have been having for a while as well. If there isn't a TSB, just drop the shaft and grease the slip yoke. Takes about 20 minutes. Just be sure to set your parking brake and chock the tires. A few guys have almost been run over by their own trucks!
Terry
Terry
#7
Trending Topics
#8
#11
i'm getting the same rumble on take off when the truck has been sitting overnite. I have felt the clunk on occasion but credited it to our finely manicured roadways here in New Jersey. I'll besetting up an appointment next week for replacement of the clutch packs and a lil lube on the slip yoke.
#12
#13
Between this topic and one other in the '04 - '05 F150 forum, three types of grease have been specified for the drive shaft splines - high temp wheel bearing grease, silicone grease and teflon grease....
anyone know for a fact which is the correct grease to use?
My unofficial poll of the various entries in multiple topics dealing with rear end clunk seems to find that the majority of folks that have taken it to the dealership to get the splines greased are saying that the dealership used teflon grease.
Please let us know the source of your information if you post an answer so that we can separate fact from opinion...
anyone know for a fact which is the correct grease to use?
My unofficial poll of the various entries in multiple topics dealing with rear end clunk seems to find that the majority of folks that have taken it to the dealership to get the splines greased are saying that the dealership used teflon grease.
Please let us know the source of your information if you post an answer so that we can separate fact from opinion...
Last edited by garymake; 09-07-2004 at 01:21 PM.
#14
Just got mine back from the dealer last Friday. they greased the slip yoke and replaced the clutch pack in the LS differential. There are 2 TSB's for this problem. The Shudder after sitting overnight is the Clutch Pack and the clunk on acceleration is the slip yoke. Dealer did both with no questions on the first visit.
I was stunned.
The TEFLON Grease is the one they used on my truck. Straight from the service manager's mouth. Also on my repair receipt.
I was stunned.
The TEFLON Grease is the one they used on my truck. Straight from the service manager's mouth. Also on my repair receipt.