[69286611]

My rancher klunks and shifts with a hard jerk and you can hear a loud shift also. any ideas?

 

[retro]

According to the service manual, check the TP sensor and/or the VS sensor. If there are any DTC codes stored, troubleshoot those 1st though. Keep us posted when you can.

 

[69286611]

I don't have a service manual. Is the tp sensor the throttle position sensor, and is the vs the angle sensor ? The engine rpm does not rise and the power doesn't fall off either. How do I check for DTC codes? Sorry I am not too familiar with the newer models. My old ranchers I just drove and drove. Thank you

 

[ktriebol]

69, there is not a lot of knowledge on this site about the dual clutch transmission. I'm sure it is a fine transmission, but it is quite complex. If you intend to service that transmission yourself, you are going to have to become an expert on it. It will require a lot of time and effort on your part, but that is fine if you have the interest and aptitude. It will be challenging, but rewarding. The first step is to download the service manual from this site and study it thoroughly. The manual is free to download.

 

[Jeepwm69]

I don't have a service manual. Is the tp sensor the throttle position sensor, and is the vs the angle sensor ? The engine rpm does not rise and the power doesn't fall off either. How do I check for DTC codes? Sorry I am not too familiar with the newer models. My old ranchers I just drove and drove. Thank you

Check Retro's post again. There's a link there to a free factory service manual.

I have an 09 DCT I rebuilt for the wife. In my experience all of these shift hard, but some things can really make it worse.

What kind of oil are you running?

Do you have a gear reduction of any kind in it (running bigger tires)?

Did you buy the bike new or used?

I know in the 17 and up Rubicon DCT's Honda changed the shifting mapping in the ECU because so many people where complaining about hard shifts. On the 15-16 Rubicons you can have the ECU reflashed with the new shift map, or you can simply swap in a 2017 ECU.

Unfortunately I don't think they have done the same remap on the Rancher ECU's. Reason I mentioned it is to point out that until they do, hard shifting on the DCT Ranchers is an inherent flaw in the design and there isn't currently a fix for it.

That said, improper oil will make it shift harder, as will adding a gear reduction. If any of the speed sensors are iffy that will do it too.

Download the free Factory Service Manual that Retro linked to and look in the troubleshooting section under transmission.

 

[Loosemarbles]

I bought a 2017 ecu for my 2015 rubicon. Shifts like butter. Jeep is correct there is currently no upgrade for the rancher. You could try using synthetic oil.