Trans issue or normal?
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Senior User
Joined: Aug 2015
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From: NKY
Trans issue or normal?
From Reverse to Drive, there is a bout a 2 sec. lag before the transmission gears in. If I accelerate to early, get a nice jolt. Similar issue when slowing down, don't come to complete stop (rolling stop) and then accelerate, get a slight hesitation from trans. Both are more noticeable when truck has sat for a while, few hours or longer.
Posting Guru
Joined: Feb 2005
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Odd. I had this exact behavior the other day (6K on the clock, 2016 MY). Rebooted the truck (err, turned it off and back on) and it vanished.
Try pulling the ground cable off the battery... reset the computer.
Try pulling the ground cable off the battery... reset the computer.
Super Moderator
Joined: Aug 2003
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From: Isanti, MN
My truck does both. Interestingly enough, I have the same transmission in my Transit and it shifts much faster from reverse to drive.
I'm fairly certain it's normal though. I also get some clunking when on and off the pedal, but I'm fairly certain that's just driveline lash.
I'm fairly certain it's normal though. I also get some clunking when on and off the pedal, but I'm fairly certain that's just driveline lash.
Cargo Master
Joined: Apr 2010
Posts: 3,274
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From: Seattle area
My '16 operates the same way. The lag from R to D is annoying and I've never had any vehicle that too so long. The bump/thump when accelerating from a slow roll seems pretty common, at least in the cars I've owned. The computer is always doing the opposite of what I want.
Freshman User
Joined: May 2016
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I have/had the same thing. So, i did remove battery cable of for 15 minutes, and then drove it for a day in a calm manner, and it has lessened the Jolt. However, if i try to roll thru a stop slowly, and then get on the gas a little quicker than normal, i still get a little thunk down there somewhere.
I don't like it but I'd rather deal with it instead of taking it to the dealer and having them screw up something else or crease on of my fenders and not take responsibility...
If it get's at all worse, I will have to force myself to take it in.
Someone said there maybe a tsb or re-flash for the tranny?
OH! someone also said that you could re-grease the spline??
I don't like it but I'd rather deal with it instead of taking it to the dealer and having them screw up something else or crease on of my fenders and not take responsibility...
If it get's at all worse, I will have to force myself to take it in.
Someone said there maybe a tsb or re-flash for the tranny?
OH! someone also said that you could re-grease the spline??
New User
Joined: May 2009
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You aren't alone...
After two visits to my local ford dealer, and researching this issue on several F-150 forums, seems that unfortunately this is a common complaint. I elevated this to the service manager on my second visit and requested that his most trusted senior tech got assigned this job and they were unable to find anything wrong with my truck. My rig is a 16' super crew 5.0 2wd 5.5ft bed. The 16 2.7EB in the same cab configuration they loaned me was silky smooth. I dreaded taking my truck to the dealer both times and concluded I'm not taking it back. I've thought about pulling the driveshaft to grease the splines to see if that smooths out the excessive driveline lash/slack during transitions of power. We could start a poll to see how common this is? Then depending on results start a petition? If there seems to be enough trucks out there with this issue we just may get fords attention on this. I love everything else about my truck and I'm a die hard fan of the blue oval to my core but my 03 4.6 transitioned power smoother than my 16' 5.0 is and it's a bit frustrating.
Super Moderator
Joined: Aug 2003
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From: Isanti, MN
Mine does it, but I'm not really worried about it. It's had a bit of a clunk for awhile, and I attribute that to the aggressive fuel shut-off. These engines cut the injectors completely when coasting, and during this time the driveshaft is turning the engine. I don't think it's going to be possible to have a completely smooth transition unless the engine is tugging all the time, which wastes fuel on deceleration. Older fuel injected vehicles did this, and it drove me nuts. When I'm off the throttle I don't want the engine working.
I'm happy to live with a little clunk, it doesn't bother me in the least.
I'm happy to live with a little clunk, it doesn't bother me in the least.
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Cross-Country
Joined: Oct 2015
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Mine '15 Screw 3.5 Eco does the same thing and has since new. I've had the software update for a harsh 5-4 downshift, in sport mode, and that seems to be fixed. I almost think it's a normal condition because I've had two rental cars recently (not Fords) that acted the same way. Both rentals also had 6 speed automatics.
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From: Maine, Virginia
Tom hit the nail on the head and guess what, the GM's are doing it too. The Fords have been bad about this since 2009. The quirky shifts up and down, drivleine lash and certain configurations have a shudder while driving. Not acceptable but it doesn't seem to be hurting anything either.
Lead Driver
Joined: May 2015
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From: Mts. S. of San Francisco
We have a long driveway, and when I crest a couple of the hills, I downshift from 2 to 1. The actual "shift" takes (usually) about 5 seconds. I'm typically going 5-8 MPH. Sometimes it's smooth, sometimes it's not. It almost always takes about 5 seconds before it actually does it.
New User
Joined: May 2009
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Mine does it, but I'm not really worried about it. It's had a bit of a clunk for awhile, and I attribute that to the aggressive fuel shut-off. These engines cut the injectors completely when coasting, and during this time the driveshaft is turning the engine. I don't think it's going to be possible to have a completely smooth transition unless the engine is tugging all the time, which wastes fuel on deceleration. Older fuel injected vehicles did this, and it drove me nuts. When I'm off the throttle I don't want the engine working.
I'm happy to live with a little clunk, it doesn't bother me in the least.
I'm happy to live with a little clunk, it doesn't bother me in the least.
Super Moderator
Joined: Aug 2003
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From: Isanti, MN
Tom that makes sense and I was completely unaware of this fuel shutoff feature, I will say that I'm am very pleased with my 5.0 mpg in comparison with the old 4.6L. I feel better about this driveline slack now that It seems to be more of a normalcy than I initially thought it should be. Thanks for the input.
We are deploying Aggressive Deceleration Fuel Shut-Off technology to improve fuel efficiency. ADFSO allows fuel supply to the engine to be shut off during vehicle deceleration and then automatically restarted when needed for acceleration or when the vehicle’s speed approaches zero. This new system builds on the Deceleration Fuel Shut-Off technology available in our existing vehicles by extending the fuel shut-off feature to lower speeds and more types of common driving conditions, without compromising driving performance or emission.
This improved fuel shut-off will increase fuel economy by an average of 1 percent. An additional benefit is increased deceleration rates, which should extend brake life and improve speed control on undulating roads.
Starting in 2008 this technology was implemented on the Ford Flex, F-150, Expedition and Escape and the Lincoln MKS and Navigator. We are continuing to implement it as we bring out new vehicles. For example, the 2011 Ford Edge, Ford Explorer and Lincoln MKX use ADFSO. The ADFSO technology will be a standard feature in all of our North American vehicles by 2015, and we will continue to expand implementation globally.
This improved fuel shut-off will increase fuel economy by an average of 1 percent. An additional benefit is increased deceleration rates, which should extend brake life and improve speed control on undulating roads.
Starting in 2008 this technology was implemented on the Ford Flex, F-150, Expedition and Escape and the Lincoln MKS and Navigator. We are continuing to implement it as we bring out new vehicles. For example, the 2011 Ford Edge, Ford Explorer and Lincoln MKX use ADFSO. The ADFSO technology will be a standard feature in all of our North American vehicles by 2015, and we will continue to expand implementation globally.
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