I had to have my torque converter rebuilt about 5 months. The other day I noticed that sometimes when I am driving done the road and I step on the fuel pedal that the converter unlooks until I let off a little. It does not seem to matter what speed I am going. I was running down the highway yesterday at about 75 m.p.h and I went to pass someone and when I mashed the pedal the converter unlocked and I had to let off to get it locked-up again.
It is not doing this all the time but, just every once in a while. It only seems to do this when a mash the pedal quickly. If I slowly mash the pedal it does not ever do it.
What is causing this?
Thanks,
95psdF250
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1995 F250 XLT 4X4 7.3 PSD Auto, Reg Cab Long Bed
It's probably just the programing in the PCM. When you mash it down it basicly downshifts by unlocking the TC until you get more RPM and speed up then it will relock it.
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What code is your PCM? [img]/ubbthreads/images/graemlins/shrug.gif[/img]
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He means what computer code do you have (ie., TEE1, TDE5, etc.). There is a sticker on your computer, which is under the driver's side kick panel, behind the E-brake.
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'95 XL SuperCab, LWB, 4X4, 204,000 miles, E4OD, 4.10 LS(when it wants to be!), body lift, 305-70-16 Cooper STT's on 10" Eagle Alloy wheels, "Brand X"-inspired home-made open-element air filter, 3" downpipe & 4" straight pipe with 5" stainless tip exiting in front of the rear wheel, 6 pos. TS Performance chip (going to visit T. Wildman soon, I hope), FPR mod, A/C mod, MileMarker manuals, onboard air (York running off the alternator...1 five gallon tank) with dual Grover air horns
2000 Jeep Wrangler Sahara Edition, white w/tan top & interier, 119,000 miles, 4.0L, auto, loaded.....no mods, yet!
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1996 F-250 extended cab long box five speed. Home made Tymar, 203 Stat, 60 gal in bed fuel cell, 315/75's, no muffler, ebpv welded open 3" to 3" DP, Babies. 290K, still chugging, and still smoking when cold.
UPDATED 8/1/08 Replace so far. 1 LUK flywheel+clutch, 2 thermostats, 2 set of brakes, 1 set of calipers, 5 CPS, 3 sets of tires, 2 Transfer pumps, 1 Injector modual, 1 Computer, 2 Alt, 2 sets of batteries, 1 Water pump, 6 Belts, 1 PS hose, 2 Sets ball joints, 2 set u-joints, 2 carrier bearing, 2 Speed sensors, 1 oil pres sender, 1 temp sender, 4 sets of e-break cables, 1 front fuel tank, 2 rear fuel tanks, 2 set of glow plugs, 6 Glow plug relays, Oil galley o-rings, Turbo pedistal o-rings, EBPV o-rings, 3 sets of Injector O-rings, 1 Vac-pump, 1 new carpet.Total $$$ in repairs v/s miles driven = 3.0 cents per mile. Add fuel to that it jumps to 14.8 cents per mile over the life of the truck.
Not normal for my TDE0 and TDE1. both will lock it when I rug it. I know cuz I have the LED's for the TC-lock.
Diesel Rod
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Formerly Diesel Rod.
A '97 F250 with 295K miles, 90 LED's and 5" stacks, among other things....
A '96 F250 Reg cab with 210K miles, Needs to go away. PM me. '86 359 Peterbilt SHORT HOOD. The ongoing "project" it aint pretty but its got a 425 air to air Cat motor .....13 speed Eaton. Corvette Dash, 17 gauges, 8" black stacks, 63" flat top---> 36" sitting here waiting for paint. 1.305 Million Miles.
I don't know what I am doing, I just know I don't have time to do it.
I agree, the older codes would keep the converter unlocked until the throttle was hit then it would lock which was a complete pain in the ass. I'd be driving 35mph with the converter unlocked, look back to merge into traffic, hit the throttle and voila' rpm drop like I accidently shifted into 5th gear from 3rd if I had the manual. After getting the TDE1 code this did not happen which was a great blessing.
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Most codes seem to lock earlier when you nail the throttle. Sounds to me more like a slipping TCC. Did you use a stock TCC or go with the 4R100 type?
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Ron Hansen, 1997 F350CC, 4x4, PSD 110,000 miles all stock with stupid auto transmission unfortunately. 1993 Ford E350 Club Wagon 7.5L 11,000 miles, 1978 Kawasaki KZ650 motorcycle with 167,000 miles!
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XL SuperCab, LWB, 4X4, 204,000 miles, E4OD, 4.10 LS(when it wants to be!), body lift, 305-70-16 Cooper STT's on 10" Eagle Alloy wheels, "Brand X"-inspired home-made open-element air filter, 3" downpipe & 4" straight pipe with 5" stainless tip exiting in front of the rear wheel, 6 pos. TS Performance chip (going to visit T. Wildman soon, I hope), FPR mod, A/C mod, MileMarker manuals, onboard air (York running off the alternator...1 five gallon tank) with dual Grover air horns
425 air to air Cat motor 
.....13 speed Eaton. Corvette Dash, 17 gauges, 8" black stacks, 63" flat top---> 36" sitting here waiting for paint. 1.305 Million Miles.
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