Losing power...

[jimnor46]

Need some help/ideas. Have a 4025, has 30 hrs run time. Giving me trouble AGAIN. At 12 hrs., had to replace 2 of the 3 fuel lines, leaking crimp connections. First fuel line I replaced it with a factory line from dealer. Second line I took the advice that several people on here suggested and went to the auto parts store, bought fuel line and hose clamps and replaced with that. Has been running okay up until yesterday. Went to my sons house a couple miles down the road. Right before I got to his place I noticed that the tractor was losing power,could hardly go up a SLIGHT incline, thought I was going to have it towed. Made it to sons house, was able to make a couple passes on his front yard and gave up, just no power, was running shredder at the time. Had him follow me back home, about 5 or 6 MPH@1500 to 1700RPM was all I could get out of it, this was with hand throttle wide open. Was acting like it was bogging down the whole way. Haven't done anything to it just yet, thought I would drop by here and see if anyone had any ideas where I should start. Also, when I would come to a stop with the tractor still running, the engine would be surging . Funny thing is, when I was trying to get it back to my place, when I came to an intersection and powered down to make the turn, as soon as I made the turn and straightened up and gave it fully power, it would run okay for about 1/4mile and start bogging down again. Did this all the way back to the house.
Any ideas/suggestions what to look for would be appreciated. Haven't done any filter changes as I've only got the 30 hrs on it. Not getting any gauge warning indicators either.
Hate to take it back to the dealer, $99/hr service charge is a little tough to handle for a relatively new tractor.

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[tkevan]

Sounds like the in tank filter is clogged. Pull the petcock off the bottom of the tank and clean the filter.

 

[RNeumann]

Yep- Still a fuel issue. Start at the tank and move toward the engine. Verify function of the lines, fittings and filters as you go. Also capture the first few pints of fuel that will flow out of your tank (when doing the diagnosis in the previous post) in a glass jar to verify its condition.

 

[jimnor46]

Yep- Still a fuel issue. Start at the tank and move toward the engine. Verify function of the lines, fittings and filters as you go. Also capture the first few pints of fuel that will flow out of your tank (when doing the diagnosis in the previous post) in a glass jar to verify its condition.

Thanks guys, fuel issue was my first guess but thought I'd check in here first. Didn't know there was a filter in the tank.

Appreciate the fast responses from everyone. Guess I know what I'll be doing tomorrow.

Anyone have any numbers on filters,(fuel, air, oil) that I can buy somewhere other than the dealer?

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[RNeumann]

Not sure on your engine with regards to filter numbers. On mine the Wix/Napa had the best cross reference. I found the "final" spin on filter was a Bosch/dealer only filter item. The "pre" filter is a cartridge style and was available from Baldwin, NAPA, Wix etc.

 

[CobyRupert]

Should you also check that the tank is venting with these symptoms?

 

[jimnor46]

Thanks RNeumann for the numbers. Had looked for filters before and found a full set of filters on eBay. Don't remember what the price was but was definitely cheaper than dealer. I think there were five filters in the set.
When I was looking for filters for my ztr mower, found them on Amazon at a good price.

 

[jimnor46]

I thought about that. I filled it up right before I went to sons house and hadn't had any issues up until then. Will definitely check that also.

THANKS EVERYONE FOR THE RESPONSES.

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