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post #1 of 5 Old 07-14-2009, 08:14 PM Thread Starter
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No Reverse When Wet

I have no reverse when it rains or sometimes after a wash. This has been going on for awhile but hasn't been too big of issue as it seldom rains in the desert. Until it dries out when going forward the speedometer reads at a higher MPH than I am actually going. This past weekend it happened again when leaving on a boating trip. I washed the boat the evening before attached to the truck. In the morning I drove into town to drop the wife's truck off at the shop for some work with no problem. I left the shop and the speedometer jumps to around 70 when I am doing about 40MPH. it clears up as it has in the past and I jump on the freeway. I drive about 20 miles at 65-70 MPH with no problem then the speedometer suddenly pegs and the truck shuts down. I restart and turn around at the next off ramp and head back to town with no problem. I get back to town and it does it again. I pull off the freeway and drive to the shop at about 40 with the speedometer at around 70 -80. Since my normal mechanic won't touch a Powerstroke I take it to the local Ford dealer. They say they cannot find the problem as there is no code and the truck runs fine after sitting the weekend . Has anyone else had this issue and know the solution? Also the RPMs are normal for the speed driven.

Last edited by ADP63; 07-14-2009 at 08:26 PM.
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post #2 of 5 Old 07-16-2009, 12:02 PM Thread Starter
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Apparently the two problems may not be related. The Service Manager called and said that the after market speedometer calibrator was causing the problem.

We will see when i get it back.

03 F250 4 WD Lariat
6" lift
191,000 Miles
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post #3 of 5 Old 07-16-2009, 08:40 PM
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What calibrator were you running? The Superlift truspeed?

-Chris-
2003 F250 SC/LB 6.0L 4X4
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post #4 of 5 Old 07-19-2009, 05:52 PM Thread Starter
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Yes it is the Superlift TruSpeed. Are there issues with it?

Quote:
Originally Posted by DryHeatDude03 View Post
What calibrator were you running? The Superlift truspeed?

03 F250 4 WD Lariat
6" lift
191,000 Miles

Last edited by ADP63; 07-19-2009 at 07:28 PM.
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post #5 of 5 Old 08-23-2009, 06:14 AM
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Send a message via Yahoo to chuckles
you can use an SCT programmer and get rid of the calibrator completely. Just retune the factory PCM for you tires.

Chuckles

07 F350 King Ranch. SCT by Innovative!! 4" Magnaflow Turboback, Coolant Fiter System, ARP Studs, Sneaky Pipe by Elite Diesel.
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