Clunk while stopped
I have a 2011 EcoBoost and have noticed a clunk on occasion after stopping. For example, today I was sitting at a red light and felt a clunk. I thought that someone had bumped my truck, but when I looked in the rear-view mirror, there were no cars behind me. Could it be the transmission shifting back into first? Any ideas? It only happens occasionally.
Better OUT then IN
Joined: Feb 2011
Posts: 3,343
Likes: 255
From: South Florida (Ft. Lauderdale area)
Originally Posted by 5111
I have a 2011 EcoBoost and have noticed a clunk on occasion after stopping. For example, today I was sitting at a red light and felt a clunk. I thought that someone had bumped my truck, but when I looked in the rear-view mirror, there were no cars behind me. Could it be the transmission shifting back into first? Any ideas? It only happens occasionally.
"Hold My $tone$"
Joined: Apr 2010
Posts: 1,114
Likes: 11
From: Dank$ville, near Bud$burg, U$A (It $tink$!)
Could be the splines of the driveshaft needing to be lubed.
As you come to a stop, the vehicle 'settles', and the driveshaft moves on it's splines.
If the splines don't have enough lube, you get a 'clunk' as it relaxes and settles in.
I believe there is a TSB on this issue.
As you come to a stop, the vehicle 'settles', and the driveshaft moves on it's splines.
If the splines don't have enough lube, you get a 'clunk' as it relaxes and settles in.
I believe there is a TSB on this issue.

