Bad TW Switch? - Ford Powerstroke Diesel Forum
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post #1 of 19 Old 04-09-2009, 04:17 PM Thread Starter
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Bad TW Switch?

I had the craziest thing happen on the way home tonight and I am not a happy camper. As I was merging onto the highway, I turned my TW-6 chip from position 2 (ECON) to position 4 (STREET/STRIP) and the truck almost shut down! I floored it and the truck would not accelerate and she was rolling coal like a locomotive. I tried turning the switch to all positions while still on the accelerator, and the SES light came on.

After 1/4 mile, she just dies and stalls out. Luckily, I could coast to the median and stop...Just to see 2 State Troopers come up behind me...After 45 minutes of explaining why my truck has passenger plates, yes it is chipped but I was not in the smoke setting or "exibition of power"... they let me go.

I turn the key, she fire right up, no SES light and I drive 27 miles home with no problems. I know this is a long thread, but WTF happened?

Bad switch?

Solar Flares?
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post #2 of 19 Old 04-09-2009, 04:50 PM
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iv got the tw chip and when I turn from economy to daily...the truck allways dies...but allways starts right back up
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post #3 of 19 Old 04-09-2009, 06:06 PM
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hah, dairyfarmer? me too!

2000 F-250 4x4 7.3
BTS Transmission - 6.0L Cooler
GTP38r
Full Fuel System with Return
2-Stage W/M & Nitrous
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post #4 of 19 Old 04-09-2009, 06:31 PM
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Originally Posted by no-tel-in View Post
hah, dairyfarmer? me too!
Me three mine always dies too going from econ to daily i just make sure I stop before switching it.

2000 F250 CC LB Automatic 4X4
K&N CAI kit
Magnaflow 4" Exhaust
TW chip
Gauges
Sp diesel boost fooler
Wastegate unhooked
315 hp 672Ft.Lbs of TQ
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post #5 of 19 Old 04-10-2009, 06:39 AM
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mine dies going econo to stock

01 f250 xlt sc 7.3 srw sb black, built 4r100 w/ transgo, cold air, 4 guages, warn hubs, ITP overboost, muffler/cat delete, ccv reroute, ss HPX line, gtp38r w/ high flow outlet, non ebpv pedistal, tw chip
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post #6 of 19 Old 04-10-2009, 09:52 AM
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Mine dies from Econ-Tow but it always starts back up also. I always make sure to stop and I have enough time to start her back up again.

98' 12 valve cummins - lifted and modded
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post #7 of 19 Old 04-10-2009, 01:09 PM
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let off the accelerator before switching tunes
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post #8 of 19 Old 04-10-2009, 01:19 PM
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Mine does good turning to the right (stock-extreme) but not so good to left.

1999.5 6 Speed
Tony Wildman 6 Pos Chip
AEM Intake
4'' Exhaust
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post #9 of 19 Old 04-10-2009, 01:23 PM
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Mine turns between all the tunes fine and never dies. Always let out of the accelerator before changing tunes.

Nick, BPS Historian
1995 F-250 4x4 7.3 Powerstroke
Isspro Gauges, Tony Wildman Tunes, PSGH Stage 1 Injectors, Early 99 Intercooler, ATS Stage 6 E4OD, TCI Tranny Cooler, Snow Water/Meth, Traction Bars, EBPV Brake, TC Lockup Switch, Spray-on Liner, K&N Intake w/ NAPA 6637 Filter, 3" downpipe, 5" mitre stacks.
Waiting to be installed: Electric fuel with A1000 pump and Stealth DIY Dual HPOPs
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post #10 of 19 Old 04-10-2009, 01:25 PM
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Mine did it once, I figure it is normal, like any computer switching programs while driving has to confuse something somewhere. Mine started right up as well.

1999.5 Ford F-250 Powerstroke
7.3 Powerstroke Diesel
4" Turbo Back MBRP with 6" Tip Straight Piped!
DIY Intake
Isspro Gauges
Diesel Site Coolant Filter
TW 6 Position Chip
2.5 Inch Leveling Kit
305/75/16 Mickey Thompson MTZ's
239k and COUNTING!!!

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