[kevin8340]

2017 Mule Pro-fx never had any problems until now. It was running great one day and then the next day it would not start. No check engine lights, no codes that I have found. I have tried leaving battery disconnected for 30 mins, nothing worked. Finally, since I knew it had spark and fuel pump was running, I tried a little shot of starter fluid and it fired up immediately and ran fine. I let it warm up and drove it a little with no problems. I even killed it and restarted it, and everything was fine. come back the next day and same situation, no start. Not sure where to begin, If anyone could help point me in the right direction I would appreciate it !!!

 

[Jeremy-WI]

Low fuel pressure that might be caused by a bad fuel pump or battery that can't hold charge

 

[toddstang]

Take the gas cap off to release any pressure.

Put it back on and crank 3 or 4 times.

Take cap off and if there is no pressure, it's probably your pump.

 

[kevin8340]

thanks for the input, I'll try it. What should the fuel pressure be on this unit?

 

[Jeremy-WI]

I am not sure about the Pro FX but the Service Manual for my MX says 42 psi at idle

 

[kevin8340]

Ok thanks Jeremy

 

[Bayharbor]

How old is your gas in the tank? Sounds like the gas may have gone bad

 

[kevin8340]

I’ll check that too