Jump to content

Recommended Posts

I have a 2018 motorhome with an Allison transmission and Cummins diesel engine (340HP, 6.7L).  The coach has 8,000 miles on it.  My last two trips, the transmission light indicator has popped on after I travel 100+ miles.  I then lose power.  I was using the cruise control and would leave the cruise control on, even when it was not in use.  When I removed the cruise control, the transmission and power all seemed ok.  Until my last trip, when on the last mile of the trip (this was a 360 mile trip), the transmission indicator light popped back on and I started to lose power again.  I also flat tow a 4,400 pound cross over vehicle.  My trips have been in the Texas hill country and in Colorado.  So there is never many flat surfaces.  I typically would use the cruise control for the majority of my travel.   I expect I need to take it to an Allison deal for service.  There is a fright liner service center near me for this.  I assume the warranty may need to be used.  I am asking if anyone has had similar experiences or has any suggestions on service.  thank you

Share this post


Link to post
Share on other sites

susanvenditte@gmail.com,

Welcome to the FMCA Forum.

Don't know which Allison transmission/shift pad you have, but if yours has the ability,  have you checked for diagnostic codes from the shift pad? Check in your Allison owners manual or on Allison on-line.

Share this post


Link to post
Share on other sites

Hi Jeff, Nice coach. I would take it in as a warranty item. I haven't dealt with any of the Allison  shops there as I am in the FortWorth area. Someone may come along with a suggestion.

Bill

Share this post


Link to post
Share on other sites

I would call Inland Truck Parts and talk to them.

9000 E. Highway 290, Austin, TX 78724

inlandtruck.com

(512) 454-1488

I don't know what your requirements are for geting it done as a warranty issue and would check on that. Inland is where I would recommend if you were up here, it is where I would go.

Bill

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×