7.5kw onan diesel generator issue

[Phaeton04]

Thank you.
I read the article you sent me and followed the instructions given and Still it shutdown.. The only thing I have not done so far is replace the water pump...

 

[Voyageurs]

Well, we had that issue, but for us it was the temp sensor. That’s the little brass thingy mounted in the head. Is that what you changed?

 

[Phaeton04]

Hi Voyageurs.. Yes, that is what I changed, along with the thermostat.

 

[Voyageurs]

Hi Voyageurs.. Yes, that is what I changed, along with the thermostat.

Yah. That’s what those symptoms were for us. Hmmm. We knew a guy that had something similar although symptoms were slightly different. He did a coolant flush. Something about the spot where the sensor head was crusted over. Not the sensor itself. I can’t remember the details. But a coolant flush was the answer.

I’m afraid I’m not much help. Good luck and let us know.

 

[Phaeton04]

okay, I will flush it out tomorrow and let you know my results.
Thanks

 

[Phaeton04]

Hello Everyone,
I reflushed the radiator and noticed the radiator cap seal was split and in bad condition.. I purchased a new cap and added new coolant at the rate of 60% coolant to 40% water. Started the generator and it ran for 1 hour and 45 mins, so I shut it down. I pray that this solved the problem..
I have a trip planned for next weekend {labor day weekend} so I will post my results then.
I thank everyone for there input..

 

[Voyageurs]

Hello Everyone,
I reflushed the radiator and noticed the radiator cap seal was split and in bad condition.. I purchased a new cap and added new coolant at the rate of 60% coolant to 40% water. Started the generator and it ran for 1 hour and 45 mins, so I shut it down. I pray that this solved the problem..
I have a trip planned for next weekend {labor day weekend} so I will post my results then.
I thank everyone for there input..

Good to hear. Hope that has got it.

 

[Phaeton04]

Well everyone,
I went on my trip and the old generator did not last the whole trip. It only ran for about 30-40 minutes. The outside temp was about 99 degrees.
Im about to give up on fixing it..

 

[Kuate]

Did you ever get it fixed? if so, what was it?

 

[Madtaxi]

I had the same engine shutoff issue with error 33. I dropped my generator and replaced the temperature probe, thermostat, glow plugs, and flushed the radiator several times. After reinstalling the generator, I still had the same shutoff with code 33... Finally, I tried installing a new fuel pump and that solved my issue. If you haven't yet, try replacing your fuel pump & filter. Best of luck!