Uncommanded Shift to Neutral

[h2guy]

Guys, back in Oct on the forum, I posted that my Predator Tow Tune, in my '01 PSD, ver. r19dz, kicks the tranny into neutral whenever I touch the brakes. mIke (I think) indicated that you'd look at it.

Nothing heard so far.

This is particularly bad when I'm descending a grade with my 15k 5th wheel wanting to push me on down the hill.

The stock program does' nt do this, never has. I'd really like you to get this glitch wrote out of the program. Really should be easy to accomplish I would think.

[dynometer]

neutral is not really a possibility the valve body has a mechanical link to it- maybe your thinking of the TCC unlocking, in which case they generally do unlock when touching the brakes...???

[h2guy]

Your correct. I should have said TC unlocks.

However, your incorrect in that with the stock program, the TC DOES NOT unlock when I touch the brakes.

Perhaps on earlier models, but on my 2001, the TC DOES NOT unlock upon braking.

[mikel]

We will look into this as we create the next revision for this tool.

Thanks

[h2guy]

Okay, BUT this is the same thing you told me Oct 11,2007:

Post subject: RE: Re: RE: Tuner Sez "Application missing or corrupt&a Posted: Oct 11, 2007 - 10:53 PM




Joined: 01.16.07
Posts: 4796


Glad we got you fixed up.
I will have someone look into the neutral issue.

Thanks

[dynometer]

i have a '99 F350 and an '03 F350 (both 7.3L) they both unlock when you touch the brakes (as per scan tool), it's just seemingly more pronounced with a tune in- I tow 40-50k a year and have a 44 ft enclosed (18,000 loaded) and another open trailer (13,000 lbs with equipment). It is generally common practice that they work that way, all gas cars are like that, as well as most diesels.

[h2guy]

I say again, with the stock Ford programming, my TC does NOT unlock, above 38mph in OD, when I touch the brakes. Only other vehicle I had that did unlock the TC was an '83 Cad Cpe Deville.

When I'm in mountains and know I'm gonna face long down hill grades, I'm currently forced to put stock tune back into the PCM in order to keep from having the TC unlocked when I brake while going down.