95_stroker
Jefe
Why does my TC come unlocked when I go over a large set of bumps, such as train tracks or cattle guards etc....? 
TC question
- Thread starter 95_stroker
- Start date
DaveBen
SDD Senior Member
95_stroker said:Why does my TC come unlocked when I go over a large set of bumps, such as train tracks or cattle guards etc....?
Probably because you hit your brake peddle. That will unlock the TC. You don't have to hit them hard, just the lightest touch will turn on your brake lights and that is what the computer sees as "brakes".
Dave
95_stroker
Jefe
Nope, not hitting the brake peddle. But I knew that the TC unlocked upon braking and I was wondering if even though I wasnt braking that the brake switch wasnt activating still??? These arent bone jaring molar busting bumps, but the are pretty good bumps. Mostly on gravel/dirt roads where there is open range and cattle guards and rough road.
95_stroker
Jefe
John,
I assume you are a TEE5 also? Mine doesnt unlock until I tap the brakes (or go over hellacious bumps) or if my speed drops below about 38mph.
I assume you are a TEE5 also? Mine doesnt unlock until I tap the brakes (or go over hellacious bumps) or if my speed drops below about 38mph.
Crumm
Fordoholic
Probably a stupid thought but could the brake pedal be bouncing a little when you hit hellacious bumps? I know with some of the bumps we have up here more than the brake pedal bounces. The pedal doesn't need to be depressed very far to flip the switch.95_stroker said:
95_stroker
Jefe
I think when I get my chip I'm going to have some trans tuning burned in as well, TC lock up will be one thing for sure.
BJS
Full Access Member
I'm running a TEE4 program in mine and it's higly annoying simply releasing the pedal will unlock the TC. I was under the impression that the TEE5 did the same thing other wise I'd have snagged the PCM that was in the junkyard.
I know when I was running w/ a chip I had enough power that I was barely on the throttle and even backing off the fuel to maintain speed going down a hill I'd unlock the t/c.
While you're sitting at idle see if you can ease into the throttle of if your throttle jumps up when you're trying to go slightly faster. Mine was such that I could not by fuel pedal make my truck run between idle and 1100 rpm no matter what I did this was solved when I replaced the IPR o-rings. Don't ask me the correlation between the 2 there but it did solve that problem. The other thing would be to check the Idle validation switch and make sure that the pedal is putting out the appropriate voltage and that there are no deadspots in the pedal assembly.
I know when I was running w/ a chip I had enough power that I was barely on the throttle and even backing off the fuel to maintain speed going down a hill I'd unlock the t/c.
While you're sitting at idle see if you can ease into the throttle of if your throttle jumps up when you're trying to go slightly faster. Mine was such that I could not by fuel pedal make my truck run between idle and 1100 rpm no matter what I did this was solved when I replaced the IPR o-rings. Don't ask me the correlation between the 2 there but it did solve that problem. The other thing would be to check the Idle validation switch and make sure that the pedal is putting out the appropriate voltage and that there are no deadspots in the pedal assembly.
