My ford F-150 makes a clunking noise when I release the brake at a stop light or stop sign. It sounds like it is in the transmission. It only happens when I come to a complete stop and start moving again.
You didn’t tell us how old your truck is, or how many miles it has on the odometer, but I would guess that you have a worn-out U-joint in the drive shaft. Another possibility is that the splined shaft is in need of lubrication, but I think that a bad U-joint is more likely.
That or an engine or tranny mount.
I agree with VDC; it’s something that’s under load when the powertrain is engaged and the brakes applied, and the load released when the brakes are disengaged (unengaged? disapplied? unapplied?).
It’s a 2011 with 67,000 miles. I could go with motor mount. The drive shaft doesn’t vibrate at higher speed which would say u-joint to me. I will check out the tranny mounts and motor mounts when it stops raining. It thumps when I take foot off brake and begin to accelerate.
2011 F-150 Raptor? Built After 3/12/2011? Clunk When Accelerating From Stop?
Ford Technical Service Bulletin (1 page) Written For Ford Technicians, TSB 11-5-7 Addresses This.
2011 F-150 Built after 1/1/11 Making A Snap/Click Noise On Acceleration From A Stop?
Ford Technical Service Bulletin (3 pages) Written For Ford Technicians, TSB 14-0090 Addresses This.
If I had this truck, I think I would pay a Ford Tech to diagnose it.