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post #1 of 7 Old 05-05-2011, 08:47 PM Thread Starter
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shifting twice?

when driving around 30 35 mph my trans will shift into over drive and run at 1000rpms, it basically skips 3rd gear and into 4. also the first inch of the depression of the peddle gives me nothing then when pressed slightly more jumps to 1000rpms i have no control to drive between idle and 1000. i have heard it could be many things but before i buy a handful of sensor and relays i thought i would ask.

-Brandon-
1996 F 350 7.3L CCLB
6637 Intake; Banks: Intercooler, Up Pipes, Turbo; PHP Phoenix
4" down-pipe, cat delete,muffler delete, 4" turbo back exhaust
Sky Jacker Suspension, Limo Tint, Cobra Classic 29 LTD,
Stage 2 TC, improved internals
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post #2 of 7 Old 05-07-2011, 06:17 PM
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Does that weird go-pedal behavior happen even when not in gear? If so, it could be "dead pedal", caused by the idle switch on the pedal not responding when it should. Do a search here and on those, er, other sites for "dead pedal" for more info, but in a nutshell, the switch works like the one in the fridge door; it opens (or is it closes? whichever...) when you push the pedal off the idle position. Sometimes it gets out of adjustment, and doesn't do what it should until you've pressed the pedal quite a distance. The fix is to bend the little tang that the switch is on so that it responds more readily. Be careful not to over-adjust it, 'cuz if you overshoot, you don't get any idle. But that's an oversimplification; like I said, search is your friend.

Dunno if this will also take care of your shifting problem, but it might. Be worth looking into first.
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post #3 of 7 Old 05-08-2011, 01:03 AM
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Got a buddys truck the goes from 2-4 under full throttle, he still hasnt gotten it to me to figure it out lol
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post #4 of 7 Old 05-08-2011, 07:31 AM Thread Starter
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i'll check out the dead peddle forums see what i can find,
and if he ever gets the truck to you and you figure it out let me know please, cause that what mine does i can be going 35 into a 40 degree grade and it shift to 4, really bothering me lately and can't be good for the trans

-Brandon-
1996 F 350 7.3L CCLB
6637 Intake; Banks: Intercooler, Up Pipes, Turbo; PHP Phoenix
4" down-pipe, cat delete,muffler delete, 4" turbo back exhaust
Sky Jacker Suspension, Limo Tint, Cobra Classic 29 LTD,
Stage 2 TC, improved internals
Loudest, Proudest member of the Fightin' Texas Aggie Class of 2015!
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post #5 of 7 Old 05-31-2011, 06:19 AM
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my truck does the same thing, im not sure if its the trans or the ts chip

97 C/C LB PSD, 9in of lift 38 toyo open countrys, ts performance chip, mpbr turbo back exh. no muffler, inj. crossover line, 6637, glow shift boost trans temp, and egt gauges
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post #6 of 7 Old 08-09-2011, 09:45 PM Thread Starter
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apparently the tps on my truck is the one from the 460. The pedal assembly is perfectly out of alignment. with no pressure on the pedal the tps is already rotated a little and the idle position switch is also off making for a big jump in rpm when the idle switch clicks off. if i were to buy a new pedal assembly does it come with Tps and idle position switch or not?

-Brandon-
1996 F 350 7.3L CCLB
6637 Intake; Banks: Intercooler, Up Pipes, Turbo; PHP Phoenix
4" down-pipe, cat delete,muffler delete, 4" turbo back exhaust
Sky Jacker Suspension, Limo Tint, Cobra Classic 29 LTD,
Stage 2 TC, improved internals
Loudest, Proudest member of the Fightin' Texas Aggie Class of 2015!
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post #7 of 7 Old 08-10-2011, 10:50 AM
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The pedal assembly SHOULD have the position sensor and idle switch built-in. That's really all that the pedal is on our trucks. Remember, there's no actual throttle, so the "throttle" position sensor is really just the pedal position sensor. So the whole point of replacing the pedal is to get the new sensor / switch. A new one is crazy spendy; start checking around here and on the "nation" for someone selling one. Or maybe you'll find one on eBay.
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