My Damon Daybreak with a 2006 6.8L three valve V-10 and the five speed TorqShift transmission recently started making a very strange sound...http://youtu.be/FKVNiwRtXyYIt happens when it's cold and I just start off driving for the first time. It also happens on upshifts under a heavy load (like when going up a steep hill). I've also noticed it happening when the engine is under a heavy load going up hill and I let off the throttle dramatically.Everything seems to be running fine other than the sound and there are no codes.Anyone have an idea what this could be?Thanks!

Has anyone looked underneath the drive train? From the video, it sounds like a "light" click. It may be from the drive shaft or torque converter/flywheel area. I would try to narrow down the location.

Not sure what you mean by a light click. It seems like something cycling like a relay, valve or solenoid. Could be from the transmission but I can tell. Listening while driving it sounds like it's coming from the engine, not back from the transmission.westend wrote:Has anyone looked underneath the drive train? From the video, it sounds like a "light" click. It may be from the drive shaft or torque converter/flywheel area. I would try to narrow down the location.

No way, not that sound.Chopperbob wrote:Drive shaft slip joint?

Cracked flex plates make all sorts of strange sounds. Worth a look.Richard

Clicking sound from engine/transmission | Good Sam Community

westend
Explorer
Apr 05, 2016
Has anyone looked underneath the drive train? From the video, it sounds like a "light" click. It may be from the drive shaft or torque converter/flywheel area. I would try to narrow down the location.
Mike_Schriber
Explorer
Apr 05, 2016
Not sure what you mean by a light click. It seems like something cycling like a relay, valve or solenoid. Could be from the transmission but I can tell. Listening while driving it sounds like it's coming from the engine, not back from the transmission.

westend wrote:
Has anyone looked underneath the drive train? From the video, it sounds like a "light" click. It may be from the drive shaft or torque converter/flywheel area. I would try to narrow down the location.
Chopperbob
Explorer
Apr 05, 2016
Drive shaft slip joint?
Mike_Schriber
Explorer
Apr 05, 2016
No way, not that sound.

Chopperbob wrote:
Drive shaft slip joint?
RLS7201
Explorer II
Apr 06, 2016
Cracked flex plates make all sorts of strange sounds. Worth a look.

Richard
cpaulsen
Explorer
Apr 06, 2016
Sure it is not a broken exhaust manifold stud? Very common on the V-10's.
Mike_Schriber
Explorer
Apr 06, 2016
I'm pretty sure it's not an exhaust stud. If it was, it would make the sound all the time. Listen carefully to the recording. It's a cycling sound that always lasts for the EXACT same amount of time. To me, it's clearly a solenoid, valve or relay but I have no idea what or which. The V-10 doesn't have cam phasers and I can't think of anything else. It's possible it's a transmission solenoid but it sounds like it's coming from the engine and not further back from the transmission.
wa8yxm
Explorer III
Apr 06, 2016
Rapid click (in which case I have no clue) or a CLICK as it shifts (one click per shift, or one click per series of shifts)(

In some modern transmissions there is both a relay and a magnetic clutch (the relay controls the clutch)

This clutch "locks" the torque converter when no shifting is anticipated so that you get better MPG..

Now I've never heard one engage.. but well. You did say it happens when shifting.

That said, I'm not a Ford guy and do not know them as well as I know GM products or Chrysler.
MEXICOWANDERER
Explorer
Apr 06, 2016
¿Torque converter lockup solenoid?
Mike_Schriber
Explorer
Apr 06, 2016
Repeated rapid clicking. Did you see there's a link on my first post to a YouTube video with a recording of the sound?

The torque converter locking solenoid is a possibility but it seems unlikely. It happens when cold right off the line at slow speed when the computer would not attempt to lock the torque converter. It also happens AFTER upshifts, not before, and only at high engine loading.

Just talked to a mechanic friend and he's pretty stumped too. I always get the weird ones!

wa8yxm wrote:
Rapid click (in which case I have no clue) or a CLICK as it shifts (one click per shift, or one click per series of shifts)

In some modern transmissions there is both a relay and a magnetic clutch (the relay controls the clutch)

This clutch "locks" the torque converter when no shifting is anticipated so that you get better MPG..

Now I've never heard one engage.. but well. You did say it happens when shifting.

That said, I'm not a Ford guy and do not know them as well as I know GM products or Chrysler.