Yesterday my truck started making a clack-clack-clack-clack noise at low speeds, say 5-10 MPH when I am stepping on the clutch pedal (in or out). My ideas so far are:
--Bad throwout bearing (would expect this to be more of a growl)
--Bad transmission input bearing (same, only I would also expect it to always be there
--Could a bad clutch somehow make this noise? I tried putting it in 4th with the rear brake on and letting out the clutch, and the engine died instantly.
Also of note. I've been having problems with surging going up hills is 4th and 5th. I would say this is definitely a clutch problem, but it also happens going down hills, just less often. Also the front brakes are failing to release properly.
I recognize the impossibility of making diagnoses online, so I'm mainly just looking for ideas and input