FACTS:2014 Toy Hauler purchased in August 2013Camped with no issues through SeptemberRan generator for 30 minutes in OctoberRan generator for 30 minutes in NovemberI went out today to run it again today. (I planned to run it monthly for 30 minutes) It started and ran for about 30-60 seconds then quit. It sounded rough and "clunky" when it was running but it was very cold outside. NOW IT WON'T START!It turns over just fine and I can smell gas after priming it, however it will not start. I used a bunch of Stabil in the gas tank before storing it.Any ideas?

What does the oil look like? Oil might be too thick to circulate.

What does the plug look like? Is it wet or Dry? Is there spark at the plug?Just things to check.

Don't know if the new ones have it but I put on a clear, inline, fuel filter to 1) see the gas being primed, 2) to see for any leaks in the line (ie loss of fuel in filter), and 3) to trap an sediment. PS. I have gone through 3 carburetors and had it at the factory twice. I used fuel stabilizer, etc. but it is the worst generator ever put into production (in my opinion of having different gen sets in my TH). I have the Onan 5500 Gold and what an unreliable piece of junk. Thanks for listening. :)

I never had an issue with my 5500 Gold. The stock fuel filter is a metal canister - Going to a clear one will tell you if you have fuel delivery problem. How does the air filter look? Did anything try to build a home in the intake or exhaust?

Cummins Onan 5500 Generator | Good Sam Community

mjayco
Explorer
Jan 07, 2014
My 4000 did the same thing. I ended up having the fuel pump replaced twice under waranty.
Bedlam
Moderator
Jan 07, 2014
I never had an issue with my 5500 Gold. The stock fuel filter is a metal canister - Going to a clear one will tell you if you have fuel delivery problem. How does the air filter look? Did anything try to build a home in the intake or exhaust?
bkirkpatrick
Explorer
Jan 06, 2014
Don't know if the new ones have it but I put on a clear, inline, fuel filter to 1) see the gas being primed, 2) to see for any leaks in the line (ie loss of fuel in filter), and 3) to trap an sediment.

PS. I have gone through 3 carburetors and had it at the factory twice. I used fuel stabilizer, etc. but it is the worst generator ever put into production (in my opinion of having different gen sets in my TH). I have the Onan 5500 Gold and what an unreliable piece of junk. Thanks for listening. :)
huron52
Explorer
Jan 06, 2014
What does the plug look like? Is it wet or Dry? Is there spark at the plug?

Just things to check.
Bombfixer
Explorer
Jan 06, 2014
What does the oil look like? Oil might be too thick to circulate.
dieseldan723
Explorer
Jan 06, 2014
PS. Fuel tank is 3/4 full.

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