Hi,

I bought a new Generac XP10000E generator. I have been maintaining it by starting it every month. Last month, I went to use it during a power outage and it ran perfectly fine for 20 minutes, but then started surging up and down and shut down about after about 2 minutes.

This continues to happen, everytime I start it. It surges everytime after about 20 minutes(load or no load). Somebody told me it could be either a bad carb or a venting issue.

So, I opened the gas cap, when it started surging, but that didn't help. I even ran the generator with the gas cap off, but it still surged after 20 minutes. I then replaced the carb(since its EPA certified, no parts available), but it is still doing the same thing.

I am at my wits end on what could the issue be. It is under warranty, but the closest service center is about 30 miles away and I would have to rent a truck to drop it off and pick it up(will cost about 150 bucks). Also, the generator is not exactly very light, so will have a lot of issues getting it in the truck So, if anybody has any suggestions, I would love to hear them.


Thank you,
John M.

 

No vehicle with a trailer hitch?
Rent a trailer from U-Haul.
Even renting a truck from HD would be cheaper then that.
Contacted Generac to see if they offer on site service?

 

Fuel flow from the tank is insufficient. It may be the fuel line is swollen inside and restricting flow, or something is clogging the tank outlet or carb inlet. In any case, fuel is getting through but not fast enough. If it has a fuel shutoff, it might not be open all the way.

 

Thanks for the advice. I didn't think of replacing the fuel line. I will do that tomorrow. I did take the fuel shut-off out of the equation to make sure that wasn't the issue. Also, since I just replaced the carb, the inlet should be fine. But, I will put a new fuel line, and get back on how it went.

Just out of curiosity, something like this couldn't be electrical related, can it? Can it have something to do with the stepper motor or the regulator?


Thanks,
John M.

 

So, I bought a 4 ft 1/4 inch fuel hose and removed the existing fuel line and fuel filter. I used the new 4 ft hose, but, after about 15 minutes, it did the same thing. So would you have any more ideas?

Do you think it could be electrical or something to do with it overheating?


Thanks,
John M.

 

Aside from taking it back, I would drop the carb bowl and observe the flow of fuel into the bowl. I still tend to think it is a slow fuel delivery problem.

 

How much gas is in the tank ? Mine won't even start if there's not a 3 or 4 gallons of gas in the tank. I have the same generator as you.