When It's in slow mode, what are the RPM's doing? Need to determine if it's an engine problem or clutch problem.

 

When it's in the slow mode it will not accelerate, both road speed and RPM are low. acts like if you had your em brake on, lots of intake roar but no increase in speed or RPM. Thanks Jim

 

If the machine was a 2013 I would suggest the vain sensor. When they are bad they act just as you describe. Are you getting any diagnostic codes?

 

Sorry for the late reply,I've been out of town for the past week. Wen I start it I can pull it out of the barn and drive out to the road accelerate to 50 mph and then slow to about 30/35, drive a 1/2 mile and it will then start to decelerate to about 20/25 and have a loud intake roar when the acc pedal is pushed down, but it will not accelerate. No check engine lite so no codes.

 

Thanks for the reply's. I changed all fluids and the plugs and it now runs fine, never would have thought bad plugs at this low # of hours/miles(86hrs-600mi) Oh well