Sticky Throttle
08-13-2015, 09:04 AM
#1
Registered User
Thread Starter
Sticky Throttle
It's really a rush when someone pulls out in front of me while pulling the double.
It randomly sticks at about half throttle after going full throttle. I can't pull the pedal up with my toe. Popping the throttle will make it let go. This truck gets daily use, so I wouldn't think it'd be a storage rust issue. What should I check?
I think this truck just want's more petting and loving. It also decided to dang near lock up the rear end (LS) in a short left turn with a heavy load (Fiver), waking up everybody in the camp ground as the axles wound up and released with a clang and bang. A serving of LS additive seemed to get it under control.
It randomly sticks at about half throttle after going full throttle. I can't pull the pedal up with my toe. Popping the throttle will make it let go. This truck gets daily use, so I wouldn't think it'd be a storage rust issue. What should I check?
I think this truck just want's more petting and loving. It also decided to dang near lock up the rear end (LS) in a short left turn with a heavy load (Fiver), waking up everybody in the camp ground as the axles wound up and released with a clang and bang. A serving of LS additive seemed to get it under control.
Last edited by j_martin; 08-13-2015 at 09:08 AM. Reason: overpowering the spelling chequer.
08-13-2015, 09:25 AM
#2
Registered User
Could be a throttle cable starting to fray. That is how a lot of the motorcycle cables act before they go. be carefull I have had them stick and not let go!
08-13-2015, 11:03 AM
#3
Registered User
Thread Starter
08-13-2015, 04:20 PM
#5
1st Generation Admin
I had a similar issue and found the main throttle bellcrank (that which the cables connect with the rod that goes to the IP), that shaft the bellcrank is mounted on, apparently uses sleeve bearings . . . at best. My mess was heavily worn. IIRC, I disassembled stuff and ultimately slid a piece of aluminum tubing up into the bellcrank so as to act as a new bearing. I still have to lube it occasionally.
08-13-2015, 04:48 PM
#6
Registered User
Thread Starter
I had a similar issue and found the main throttle bellcrank (that which the cables connect with the rod that goes to the IP), that shaft the bellcrank is mounted on, apparently uses sleeve bearings . . . at best. My mess was heavily worn. IIRC, I disassembled stuff and ultimately slid a piece of aluminum tubing up into the bellcrank so as to act as a new bearing. I still have to lube it occasionally.
Got a quarter million on it. I suspect Mr. Knittle is right on the frayed cable.
08-15-2015, 02:19 PM
#7
Registered User
Thread Starter
I think I found the trouble. I managed to get the throttle to stick in the yard and shut the engine down with the throttle stuck. The jam appeared to be the throttle cable. When I popped it off the bell crank, everything came loose and seemed to be normal. I crawled under the dash with a light and found a couple of loose small wires (about 24g from a disconnected alarm module) dangling behind the throttle pedal. I think the end of one of them got into the cable housing with the throttle cable and jammed it. Explains the total randomness of it. Besides, since I removed the wires, I haven't had the problem.
I did, however, discern that the bell crank needs a little TLC. Anybody know where I can get bushings for it?
I did, however, discern that the bell crank needs a little TLC. Anybody know where I can get bushings for it?
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