We picked up our new Eco about 2 weeks ago. (3.73, Max tow) We put 1200 miles on it before Friday, and then took our travel trailer for a test run this weekend. We went to a campground about 30 miles from home. Truck towed it very well. BTW the weight of the trailer is about 4800 lbs.

After disconnecting the trailer, I pulled the truck out from under the hitch, shut it off and let it sit over night. The next day we decided to take a short drive. I stated the truck, put it in gear, and started to pull out of the campsite.

The truck seemed to lurch forward with very little pressure on the gas pedal. I left off the gas, tried it again, the truck was still moving slowly forward, and again it seemed to lurch. Almost like the transmission was disengaged and then clunked into gear. After taking my foot off the gas and repeatedly trying to accelerate slowly several times, it finally started to shift (or whatever) correctly - no clunk.

This had never happened in the previous 1200 miles. The truck also ran perfectly on the way home today, shifting beautifully.

Anyone else experience this from their Eco, or this new 6 speed transmission?

I've read that this transmission learns your driving style, but I would think that after 1200 miles it would know me by now The only thing different this weekend was we had towed our travel trailer for a short trip prior to this event.

thanks
Mike

 

I have had mine do that after i tow a trailer, the transmission adapts to your driving for smoother shifting, etc. so when you towed your trailer it adapted for those conditions, then when u removed the trailer it is still shifting like it has the trailer behind it, after a few miles without the trailer it should relearn.

 

On another thread, poster was told to give it some time for the transmission to "learn". If it learned in 30 miles of trailer towing for this poster, how come the other poster's tranny doesn't seem to learn so quickly in 30 miles? Just asking... Sounds like experiences are as random as the answers you get.

Here are some of the previous replies;

 

If he had the truck in tow haul mode the trans would be spooling gears out alot longer than normal, then unhook the trailer and drive the truck without tow haul mode on and you are bound to see wierd shifts. Its just the way adapative learning transmission work

 

How difficult would it be to differentiate between towing and not towing? The display already tells me that the trailer is connected or disconnected ....
BTW, the same applies to the DTE calculation.

 

I did use tow haul mode on the way to the campground. RuhIa, I read the other thread and wondered the same thing. It sounds to me like no one really knows exactly how or how long this transmission learns.

EcoBco, I was glad to read you have experienced the same thing after pulling your trailer. But, it does seem odd to me that the trucks electronics, which can tell if you have a trailer connected, wouldn't also be able to switch the transmission back to 'regular' mode.

In my situation, it felt like more than just being stuck in 'tow haul experience/mode'.

 

Mine started hard shifting at 1000 miles 2-3 and now 4-5, i now have 2100 miles and still hard shifts like a boss. Sometimes even feels like the trans is going to drop it shifts so hard, but its normal right.....FML.

 

These transmissions are continually learning. They never stop learning. Pull a trailer they adapt to that, then drive without and the shifts need to re-learn. Same goes for those that race the 1/4 mile. After racing it needs to relearn. Even the Taurus is like that. This is one area where ford should have studied the Allison trans more. Those never seem to miss a beat.

 

Hi

It happened to my truck too, for about 800 -2000 miles, after that no more issues.

artificialman

 

When my engine is just started and I out it in gear it will lurch at the slightest gas pedal input. When it warms up even a little, it's smooth as glass. May just be the high idle response.