Anyone have any ideas on why I lose power on my 2009 4010 Trans Mule. It starts up fine runs good till I climb a hill and slowly lose power. I shut it off for a few minutes and it runs fine again for a bit. I have replaced and cleaned a lot of parts on it but still the same thing. I have replaced the spark plugs, removed and cleaned the throttle body, new fuel pump and filter, cleaned the fuel tank, rebuilt the secondary clutch. Running out of ideas.
tbarh1
Hi.
I´ve a Mule 4010 2014. The same issue, lose power uphills. I decided to change both coils for OEM ones. Also, replace fuses and clean electrical connectors. After this, the problem was solved. Before this I changed the fuel pump, cleaned the throttle body, changed spark plugs and nothing.
I hope this will be usefully.
I´ve a Mule 4010 2014. The same issue, lose power uphills. I decided to change both coils for OEM ones. Also, replace fuses and clean electrical connectors. After this, the problem was solved. Before this I changed the fuel pump, cleaned the throttle body, changed spark plugs and nothing.
I hope this will be usefully.
I 2nd what Icoh1971 said. My 2018 4010 had intermittent low power as if in limp mode. Thought it was in limp because DFI light came on. Turns out it was just not firing on the front cylinder. Did find the ground connector to that coil to be loose, but by then I had gotten a new oem coil so I put that on too. Problem fixed, mule runs much better than anytime since new. I also had tried everything else first with no luck. DFI never did have any codes
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