HELP- Superlift Truspeed - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 13 (permalink) Old 01-24-2012, 01:53 AM Thread Starter
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HELP- Superlift Truspeed

Installed this on my truck tonight and now I have no speedo and OD light is flashing. Help please.

2003 F-250 7.3L FX4 CC SWB
-AFE intake
-Silverline exhaust
-DI 6 position chip
-Autometer gauges
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post #2 of 13 (permalink) Old 01-24-2012, 11:36 PM Thread Starter
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Re: HELP- Superlift Truspeed

Alright, I know the speed sensor wires are connected right. Superlift told me to check by unhooking the positive and ground and if my speedo then works then it is not the speed sensor wires. So I then run the ground to my battery and I checked my add a circuit fuse tap. I know my positive and ground are good. Would the box be bad?

2003 F-250 7.3L FX4 CC SWB
-AFE intake
-Silverline exhaust
-DI 6 position chip
-Autometer gauges
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post #3 of 13 (permalink) Old 01-25-2012, 01:36 AM
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Re: HELP- Superlift Truspeed

Is this to correct the speedo with bigger tires?? I need one of these

542RWHP "E99" True 5" exhuast system/910's/arp head studs/t-500/RR with fuel system/SB pushrods/gated S366 turbo/250-100/HPX/cutom intake/ DI 6 point/ gear head tunes/BTS
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post #4 of 13 (permalink) Old 01-25-2012, 02:13 AM Thread Starter
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Re: HELP- Superlift Truspeed

Yes, supposed to.

2003 F-250 7.3L FX4 CC SWB
-AFE intake
-Silverline exhaust
-DI 6 position chip
-Autometer gauges
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post #5 of 13 (permalink) Old 01-25-2012, 02:51 AM
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Re: HELP- Superlift Truspeed

Man.. PM me when you get this figured out

542RWHP "E99" True 5" exhuast system/910's/arp head studs/t-500/RR with fuel system/SB pushrods/gated S366 turbo/250-100/HPX/cutom intake/ DI 6 point/ gear head tunes/BTS
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post #6 of 13 (permalink) Old 01-26-2012, 01:09 PM
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Re: HELP- Superlift Truspeed

Could be your vss has gone bad. It is in your rear differential.

2000 F250 7.3 Lariat 4x4 10 inch Skyjacker Lift With 35 Fierce Attitude M/T's. Stock for now.
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post #7 of 13 (permalink) Old 01-26-2012, 01:24 PM
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Re: HELP- Superlift Truspeed

I looked into those a while ago
I am glad I can just program my tire size on the 6.0 the Truespeed looked like a pain and $$ but it does sound like it's not getting any signal from the vss
I thought there was a easier way to adjust the size on a 7.3?
good luck

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post #8 of 13 (permalink) Old 01-26-2012, 10:39 PM
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Re: HELP- Superlift Truspeed

All ever gotten was "can't be done"

542RWHP "E99" True 5" exhuast system/910's/arp head studs/t-500/RR with fuel system/SB pushrods/gated S366 turbo/250-100/HPX/cutom intake/ DI 6 point/ gear head tunes/BTS
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post #9 of 13 (permalink) Old 01-27-2012, 02:28 AM Thread Starter
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Re: HELP- Superlift Truspeed

Unhooked all the wires, cut all connections. Soldered every connection and reinstalled and now it's working. Got the GPS up to 50 mph and it spot on. Don't know which connection was off, but it is fixed. Not bad for $50 used on the Truspeed and Superlift is very helpful when I called in multiple times.

2003 F-250 7.3L FX4 CC SWB
-AFE intake
-Silverline exhaust
-DI 6 position chip
-Autometer gauges
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post #10 of 13 (permalink) Old 01-28-2012, 06:01 PM
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Re: HELP- Superlift Truspeed

good deal !

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