Eatonpcat
Model #: 12kw (will get model #) 4456-1 sounds close, but not sure!
Propane or Natural Gas: Propane
Length of gas pipe feeding the generator: 40'
Size of gas pipe feeding the generator: 3/4"
How long since the last full maintenance: Plugs and oil/air filter changed as manual suggests (By me)
How long have you experienced this problem: 1 month

Description of problem:

Generator will not start. It cranks, but it seems like it is not getting fuel.
Thinking the fuel solenoid might need replaced, but I haven't figured out where it is located. Any suggestions would be appreciated.

Replaced the starter over a year ago...Thanks for all the help I received from this forum using the search feature on that one!!


Steps you have taken to resolve problem: Not much, changed plugs, checked air filter and oil. Tried using starter fluid, But still didn't start.
Quote
Skip Douglas SkipD
The first thing you need to do is measure the gas pressure feeding the generator. This requires a very low-pressure pressure gauge, as the pressure you need to measure is on the order of one-half PSI (pound per square inch) or less. A water manometer (or an electronic equivalent) is the tool typically used for this, and you could make one if you are handy.

Once we have the correct model number, we can look things up and help you with internal items if the gas pressure is in the normal range.
Skip Douglas
Quote
johnc
A volt ohm meter to check power at the gas valve. A wiring diagram is a must. Then as Skip said, checking gas pressure at both inlet and outlet of solenoid gas valve. Don't start turning knobs and dials. Use good proper check out procedures. Someone should be able to guide you to the download site for the service manual.
Quote
bronco
the last 7 words give a clue. "Tried using starter fluid, But still didn't start"??? hmmmm. don't think it is a gas problem. Check spark and then check valves.
Quote
Eatonpcat
Thanks JohnC and Bronco!! It is getting spark, How do I check the valves??

I would have no problem calling in a tech to work on my generator except in the past, the Generac service guy in my area couldn't even diagnose the bad starter. I guess I could try another company, but I don't want to throw money out the window.

Anyone know of a good Generac Service company around Strongsville (Eaton Twp.), Ohio??
Quote
Skip Douglas SkipD
Do you have a diagnostic service manual for your generator? If not, post the exact model number (as printed on the tag in the generator) and I'll see if one is available on line for you to download. Generac's diagnostic manuals have very good troubleshooting charts and tests to help a technician (anyone who understands the book and is a decent mechanic and electrician) resolve problems.
Skip Douglas
Quote
ohmslaw
Cover the intake holes under the air filter cover while the engine is cranking.
Do you have suction? Open the oil fill cap and watch the valve rocker arm movement. Does it move? You may have a bad cam. I believe this model is one of those with the weak cam gear .
Tim
Quote
Eatonpcat
Thanks ohmslaw...I will try that tonight and report back.
Wife told me to get rid of this generator and buy a Kohler.
Got to fix this one!! LOL
Quote