Need some help

[Alpha]

Thank in advance for any help you can provide.

Yesterday my m1009 started struggling. It will drive just fine in first gear, but second it acts as if the acclerator is stuck and the truck is barely accelerating. In fact it accelerates better if I do not floor it. Third is the same.

Going up /down hill it will almost stall.

I dropped the tranny pan last night and refilled it.
Only thing I did recently that I don't usually do is put in almost a full thank of fuel.
In the last year I replaced the modulator for it not wanting to shift.

 

[O.D. Fever]

Plugged fuel filter.

 

[Alpha]

Plugged fuel filter.

That simple huh? GREAT!

Though curious, why would first gear be fine? But not the others?

 

[mudman]

I second that..!!! Easy fix!!

 

[O.D. Fever]

No , just the first step.

 

[mudman]

Because you are having to press on the pedal a little harder to fuel the engine!!

 

[corelokt]

Buy 3 filters online, "cheaper" that way. Use one right away to fix it. Next add 2 stroke oil with you next full tank. Run that. Change the filter again. Keep the third behind the seat.

 

[southdave]

Dont forget to check for fuel leaks at filter housing and the rubber line in the enginge valley...

 

[Alpha]

Buy 3 filters online, "cheaper" that way. Use one right away to fix it. Next add 2 stroke oil with you next full tank. Run that. Change the filter again. Keep the third behind the seat.

Please excuse the ignorance, but what will 2stroke oil do?

 

[combatmech]

Adding 2 stroke oil to diesel fuel will help lubricate the IP.... LS Diesel doenst have the best lubricating properties. There are other additives, tons of folks here on SS swear by 2 cycle oil. In addtion, 2 cycle oil is the least expensive route to other additives.

 

[mudman]

How much do you add to a tank full??

 

[Anubis8472]

Best to use a TC-W3 rated ashless 2-cycle.

I use super tech outboard 2-cycle from wally world.
I dump a 16oz bottle in every tank and the engine just loves the stuff.
I also use an Opti-lube fuel treatment in the winter (for cetane and anti-gel).

I've tried several fuel treatments, but none of them come close to the 2-cycle in terms of a purring 6.2