Tow haul button problems
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Tow haul button problems
I have a 2005, f350 6.0. I am new to owning a diesel and have a lot to learn. My truck runs excellent and has no issues, until I push the tow haul button in! It starts bucking at 2,000rpm and my rpm's drop down then quickly raise. It's like the truck wants to shift but the tow haul is enabling it so it falls on its face. I have never heard or seen a truck act like this, but everyone says you don't want to pull without tow haul in an automatic. I have been running it without the tow haul and it does great. It does however worry me, and I'm not sure if it could lead to more issues. Any suggestions? 
Fleet Owner
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
Some of the questions your going to get asked.
What gauges do you have and do you have any way
to scan for codes. The Autozone tools don't do so
well when it comes to transmission code reading
If you don't have access to a good scan tool we can see
if someone near by can help. The Autoenginuity with the Ford
bundle is also a good tool when it comes to diagnosing these engines
and the truck body that goes along with it.
Did you get to read the tech folder yet if not when you have some time.
The ScanguageII aka The SGII is a good tool for giving you info but is not
the best code reader for what your dealing with right now.
lets see if Mark Kovalsky will pop in and say a few things. He is very good
with transmissions because that is what he used to do.
I would try to help more but I am not the best when it transmissions.
Sean
What gauges do you have and do you have any way
to scan for codes. The Autozone tools don't do so
well when it comes to transmission code reading
If you don't have access to a good scan tool we can see
if someone near by can help. The Autoenginuity with the Ford
bundle is also a good tool when it comes to diagnosing these engines
and the truck body that goes along with it.
Did you get to read the tech folder yet if not when you have some time.
The ScanguageII aka The SGII is a good tool for giving you info but is not
the best code reader for what your dealing with right now.
lets see if Mark Kovalsky will pop in and say a few things. He is very good
with transmissions because that is what he used to do.
I would try to help more but I am not the best when it transmissions.
Sean
Cargo Master
Joined: May 2006
Posts: 2,116
Likes: 6
From: Florida
I wouldn't utilize the tow haul if it is causing any kind of bucking. So you are right in not using it. But you will need a ford specific scanner to pull the trans codes. I would be willing to bet there are some stored. Might be worth the diag fee at the dealer if not you would need a auto enginuity with ford bundle to pull the codes.
TorqShift Transmission Firm Tip-In and Tip-Out While in Tow/Haul:
Some customers may complain of bucking or jerking when firmly depressing the accelerator while in Tow/Haul mode. These torque oscillations should only occur in Tow/Haul because the torque converter is programmed to stay locked to provide engine braking in that mode. Engineering is investigating ways to improve this symptom. If this problem occurs out of Tow/Haul, normal diagnosis should be followed to find the cause. Broadcast Message 0695.
does this sound like your symptoms?
TorqShift Transmission Firm Tip-In and Tip-Out While in Tow/Haul:
Some customers may complain of bucking or jerking when firmly depressing the accelerator while in Tow/Haul mode. These torque oscillations should only occur in Tow/Haul because the torque converter is programmed to stay locked to provide engine braking in that mode. Engineering is investigating ways to improve this symptom. If this problem occurs out of Tow/Haul, normal diagnosis should be followed to find the cause. Broadcast Message 0695.
does this sound like your symptoms?
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,704
Likes: 2,626
From: SE Florida
I wouldn't utilize the tow haul if it is causing any kind of bucking. So you are right in not using it. But you will need a ford specific scanner to pull the trans codes. I would be willing to bet there are some stored. Might be worth the diag fee at the dealer if not you would need a auto enginuity with ford bundle to pull the codes.
TorqShift Transmission Firm Tip-In and Tip-Out While in Tow/Haul:
Some customers may complain of bucking or jerking when firmly depressing the accelerator while in Tow/Haul mode. These torque oscillations should only occur in Tow/Haul because the torque converter is programmed to stay locked to provide engine braking in that mode. Engineering is investigating ways to improve this symptom. If this problem occurs out of Tow/Haul, normal diagnosis should be followed to find the cause. Broadcast Message 0695.
does this sound like your symptoms?
TorqShift Transmission Firm Tip-In and Tip-Out While in Tow/Haul:
Some customers may complain of bucking or jerking when firmly depressing the accelerator while in Tow/Haul mode. These torque oscillations should only occur in Tow/Haul because the torque converter is programmed to stay locked to provide engine braking in that mode. Engineering is investigating ways to improve this symptom. If this problem occurs out of Tow/Haul, normal diagnosis should be followed to find the cause. Broadcast Message 0695.
does this sound like your symptoms?
Cargo Master
Joined: May 2006
Posts: 2,116
Likes: 6
From: Florida
I already did, right here: https://www.ford-trucks.com/forums/1...l#post13444485
I don't think that is her problem. I fixed that for 2005. This broadcast message was to install the change the unlocks the torque converter at closed throttle specifically to fix this in the 2003 and 2004 trucks. The 2005 already had this.
I don't think that is her problem. I fixed that for 2005. This broadcast message was to install the change the unlocks the torque converter at closed throttle specifically to fix this in the 2003 and 2004 trucks. The 2005 already had this.
good to know. I just ran a google search for her problem and it led me to that post from bismic. I did not know there was another identical thread on the issue.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,704
Likes: 2,626
From: SE Florida
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I would tend to think the issue would appear in normal mode as well if it were an engine issue.
I would suggest pulling the battery cables and restating the learn mode.
Josh
I would suggest pulling the battery cables and restating the learn mode.
Josh
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I haven't had it do it while just driving. I have only owned it three months and the owner before had the tranny rebuilt to help it shift while pulling. I more than likely wrong but I have thought that could be the cause. But I asked the guy I bought it from if he used the tow haul and had experienced this, he said he used it but had never had the problems I am having. I haven't had the codes checked on it yet I do know someone that could do that. I have had someone mention the tow haul button could be broke but they were not sure because they don't know much on Ford's. I have had a friend claim that their 6.4 does the same thing in tow haul so they dont run with it on.
Cargo Master
Joined: May 2006
Posts: 2,116
Likes: 6
From: Florida
. But I asked the guy I bought it from if he used the tow haul and had experienced this, he said he used it but had never had the problems I am having............................................ .......................................I have had a friend claim that their 6.4 does the same thing in tow haul so they dont run with it on.
Fleet Owner
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
One option is to see if someone near her that has an AE can
drop by and run a scan for her. The other option is going
into a Ford Dealership and having them do the scan.
The last option is to buy an AutoEnginuity's ScanToo
with the Ford bundle and then she would have the tools
for this and any other thing that pops up in the future.
Here is a link on where to buy the AE or you can look other places
Riffraff Diesel: AutoEnginuity Total Ford Enhanced Bundle
Mark Kovalsky, Thanks I forgot about the other thread in the HD Forum.
Sean
drop by and run a scan for her. The other option is going
into a Ford Dealership and having them do the scan.
The last option is to buy an AutoEnginuity's ScanToo
with the Ford bundle and then she would have the tools
for this and any other thing that pops up in the future.
Here is a link on where to buy the AE or you can look other places
Riffraff Diesel: AutoEnginuity Total Ford Enhanced Bundle
Mark Kovalsky, Thanks I forgot about the other thread in the HD Forum.
Sean
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