T/H Changes in new flash. Why?
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New User
Joined: Aug 2003
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T/H Changes in new flash. Why?
Anyone know why FMC made the changes to the T/H mode in the latest (?) flash. My understanding is that the tranny will free wheel in 4th and 5th with the new flash and only does the braking if you touch the brake pedal.
If it will still do the braking when you hit the brake pedal why not let it do it automatically when you let of the accelerator?
Just trying to understand the why on this one. I like the way my truck automatically begins to brake as I let off the go pedal at the crest of a hill and start the descent. It's a minor issue but I do not want to have to hit the brake to engage the transmission braking. This is a step backward as I see it.
If it will still do the braking when you hit the brake pedal why not let it do it automatically when you let of the accelerator?
Just trying to understand the why on this one. I like the way my truck automatically begins to brake as I let off the go pedal at the crest of a hill and start the descent. It's a minor issue but I do not want to have to hit the brake to engage the transmission braking. This is a step backward as I see it.
Posting Guru
Joined: Jul 2003
Posts: 2,210
Likes: 2
I have a truck with the newest flash. It DOES NOT freewheel in any gear when in Tow/Haul.
The torque converter doesn't stay locked with your foot off the go pedal any longer, but it does not freewheel. The engine braking feels about the same to me. I can still go down the west side of the Eisenhower tunnel with my F550 and a 21K fifth wheel and it will stay at about 35 MPH. I only have to use the brakes about once per mile, the same as before the reflash.
It will automatically start to brake at the crest of the hill just like it did before.
My friend has an F350 and tows an 11K fiver. He had a terrible bucking at about 45 MPH when towing. The new flash eliminated this problem. I think that is why they changed how tow/haul works.
The torque converter doesn't stay locked with your foot off the go pedal any longer, but it does not freewheel. The engine braking feels about the same to me. I can still go down the west side of the Eisenhower tunnel with my F550 and a 21K fifth wheel and it will stay at about 35 MPH. I only have to use the brakes about once per mile, the same as before the reflash.
It will automatically start to brake at the crest of the hill just like it did before.
My friend has an F350 and tows an 11K fiver. He had a terrible bucking at about 45 MPH when towing. The new flash eliminated this problem. I think that is why they changed how tow/haul works.
Senior User
Joined: Nov 2003
Posts: 284
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From: WV
Jus t recieved the JAnuary flash to elimnate the rough idling and the reveing up by itself. But Now the truck has hardly any acceleration now. One gentleman on here said it wasn't due the flash, but it didn't have this problem before..
this thing ran like a raped ape before the flash.... i do love this truck hopfully they get thing working right on it....
O'well
Try to keep them diesel's rolln,
PSdboy
this thing ran like a raped ape before the flash.... i do love this truck hopfully they get thing working right on it....
O'well
Try to keep them diesel's rolln,
PSdboy
Junior User
Joined: Nov 2003
Posts: 78
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I received the dec. flash a week ago but due to other mechanical failures(egr valve), I just started driving it yesterday and it seems to me that i have also lost some accelerator pedal. It doesnt smoke as much as before and it is just a smidgen quieter. Would rather have the power back.
Got Diesel?
Joined: Jan 2004
Posts: 4,345
Likes: 21
Powerstrokedieselboy,
There is no January flash for the 6.0L PSD motor. The last published was the 12/12 release. The "flashes" put out by Ford do not cover the 6.0L motor.
What flash did you think you got and what was the number. No one else on three different sights has or knows of a January flash.
The 12/12 flash cured cold waether and high altitude idle issues as well as adjustments to tow/haul mode.
Thanks,
There is no January flash for the 6.0L PSD motor. The last published was the 12/12 release. The "flashes" put out by Ford do not cover the 6.0L motor.
What flash did you think you got and what was the number. No one else on three different sights has or knows of a January flash.
The 12/12 flash cured cold waether and high altitude idle issues as well as adjustments to tow/haul mode.
Thanks,
Senior User
Joined: Nov 2003
Posts: 284
Likes: 0
From: WV
I will check on the flash number and what relaese it was. The one i recieved was for the psd. It stopped my trcuk from the rough idle, and reveing up.
I will up date u guys when i find something out tuesday.
Thanks,
PSDboy
I will up date u guys when i find something out tuesday.
Thanks,
PSDboy
Got Diesel?
Joined: Jan 2004
Posts: 4,345
Likes: 21
October flash cured the rough idle and smoke, December was for cold weather operation and high altitude and T/H mode issues.
Good luck,
Good luck,
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Got Diesel?
Joined: Jan 2004
Posts: 4,345
Likes: 21
DFW1,
I agree with you about the Tow/Haul operation.
Here is what I have and have noticed:
1) I have the 12/12 flash.
2) 1-2 shifts at 2,400 RPM
3) 2-3 shifts at 2,400 RPM
4) 3-4 shifts at 2,500 RPM
5) 4-5 is about 2,600 - 2,800 RPM
6) Missed the 5-6 shift, but my truck runs right at 2,000 RPM's at 70 MPH (constant)
________________________________
In Tow/Haul, the downshifts do not ocurr unless the brake is "tapped". I like the feature so "I" tell the truck when to brake, not the truck telling me.
If people really want braking power get an exhaust brake. I do not believe that the new tranny was a cure all or ever "billed" as that, but a nice new feature to have and to aid the "average" trailer tower/hauler. With electric brakes and/or an exhaust brake, I think the heavy users will LOVE their trucks.
Yes, your observations are correct (for the Dec flash).
Look at the link to see what the Dec flash modified.
_____________________________________________
http://www.flatratetech.com/6literpo...l_updates.html
______________________________________________
Good luck,
I agree with you about the Tow/Haul operation.
Here is what I have and have noticed:
1) I have the 12/12 flash.
2) 1-2 shifts at 2,400 RPM
3) 2-3 shifts at 2,400 RPM
4) 3-4 shifts at 2,500 RPM
5) 4-5 is about 2,600 - 2,800 RPM
6) Missed the 5-6 shift, but my truck runs right at 2,000 RPM's at 70 MPH (constant)
________________________________
In Tow/Haul, the downshifts do not ocurr unless the brake is "tapped". I like the feature so "I" tell the truck when to brake, not the truck telling me.
If people really want braking power get an exhaust brake. I do not believe that the new tranny was a cure all or ever "billed" as that, but a nice new feature to have and to aid the "average" trailer tower/hauler. With electric brakes and/or an exhaust brake, I think the heavy users will LOVE their trucks.
Yes, your observations are correct (for the Dec flash).
Look at the link to see what the Dec flash modified.
_____________________________________________
http://www.flatratetech.com/6literpo...l_updates.html
______________________________________________
Good luck,
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Senior User
Joined: Oct 2003
Posts: 101
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From: Moreno Valley,California
The flash in Jan (03E03) shut off the PI and changed the T/H mode. The noticed I've recieved from Ford said it was for emmission. It was suppose to improve fuel milage and the engine would be noiser,its noiser and fuel milage is getting lower. Im on my second tank with this flash and its starting to drink fuel like soda pop, 3/8 of a tank use and less than a 100 miles on this tank.
Got Diesel?
Joined: Jan 2004
Posts: 4,345
Likes: 21
AL125,
There was no January '04 flash for the 6.0L PSD. You may have recieved or done it in January, but the emissions issue and code you refer to were the October '03 flash. The December flash wasthe same modifications plus a few extras for cold weather operation, cold idle and Tow/Haul adjustments.
Look at the link in the post prior to your and it describes each flash, version number and what it is to correct or modify.
Yes, for those of us that had the October and/or December flashes, pilot injection was truned off and mileage has gone done some.
Hope this helps.
Good Luck,
There was no January '04 flash for the 6.0L PSD. You may have recieved or done it in January, but the emissions issue and code you refer to were the October '03 flash. The December flash wasthe same modifications plus a few extras for cold weather operation, cold idle and Tow/Haul adjustments.
Look at the link in the post prior to your and it describes each flash, version number and what it is to correct or modify.
Yes, for those of us that had the October and/or December flashes, pilot injection was truned off and mileage has gone done some.
Hope this helps.
Good Luck,
Freshman User
Joined: Jan 2004
Posts: 33
Likes: 0
I got the Oct. flash in my 04 F250 6.0 and it has done the same thing. Idle problem was fixed but mileage dropped form 18.5 on average to 13.5 on average. Should I take the truck back to the local dealer to see if he can do anything to fix the problem with mileage. Also how often should you take your truck back to get an updated flash.
Senior User
Joined: Nov 2003
Posts: 284
Likes: 0
From: WV
GOT A QUESTION?
What exactly is this pilot injection? I have recieved the latest flash, which ever motn it may be from. I notice that my truck is a lil louder and havent had it back long enough to check the mileage.
Could some1 please advise.
Thanks,
What exactly is this pilot injection? I have recieved the latest flash, which ever motn it may be from. I notice that my truck is a lil louder and havent had it back long enough to check the mileage.
Could some1 please advise.
Thanks,