I have a cat 140h grader. First gear works every time. And 5 and 8 gear work most of the time. But sometimes you have to switch back to park and then to 5 or 8 for them to work. 2 gear bumps then goes to neautral most of the time. Sometimes nothing at all happens. But never works. I’ve swiped 2 and 8 solenoid around. And that didn’t do anything
Swapped just the solenoids or the complete modulating valve assemblies.? Got a machine Serial Number.? Have you changed the oil and inspected the transmission suction screen recently.?
The complete assembly
Oil is good as well
Clear and bright in appearance.? Doesn't smell burned.? Have you had the transmission suction screen out recently.?
oil is good. No haven’t had the screen out
Do you have a diagram on where the screen is located ?
Not off-hand. Don't you have the basic Operation & Maintenance Manual for it.? You can download one from HERE . Put SEBU7054 in the box and click the Search button. Ref #8 in this illustration.
I don’t have anything
See the link I posted in Post #8 above. You can download one for $52.