Results for "onan 4000"

Despite my neighbor's Onan 4000 generator purring like a kitten, mine suddenly developed nasty surging issues yesterday — what's going wrong? It surges when cold, then settles down as it warms up. Under load it surges heavily until the appliance shuts off. Getting worse each day.

What are the main causes of generator surging? Need a step-by-step approach to diagnose and fix this - should I start with the carburetor, fuel system, or something else? …more

Halfway through another camping trip and trying to decide between babying my Onan 4000 with manual choke every startup or finally fixing this Code 14 nightmare. Let me try again:

Just found out that my 2013 Thor Class C's Onan 4000 generator won't cooperate after sitting since March, and I'm dealing with a nightmare. Been getting Code 14 errors and spent half the morning just trying to get it fired up.

The only way I can get it started is by manually messing with what I think is the choke linkage - otherwise it just won't go. Once I shut it off, same story - won't restart unless I physically manipulate that linkage again. Only has 240 hours on it and was serviced about 2 years ago.

I'm pretty sure the carburetor is gummed up from sitting, but what exactly does Code 14 mean? And more importantly, what do I need to clean to get that choke working automatically again? I really need to get this thing running properly before our next trip! …more

Got caught in all that rain last week and now my 2008 Jayco Melbourne 29D's Onan 4000 generator rubber isolator mount has completely split and separated. I've tried the usual RV parts sites, checked with local shops, and even called a few places - either they don't carry them or they're backordered for weeks.

I really need to get this fixed before my next camping trip. The generator is already pulled out so it's the perfect time to replace these mounts, but I just can't seem to locate the right parts anywhere. I'm willing to try generic mounts if I can figure out the right measurements, but I'd prefer OEM if possible.

Does anyone know reliable sources where I can actually find these isolator mounts? I'm running out of options here and getting pretty frustrated with the whole situation. …more

Spent an hour inspecting this Craigslist Onan 4000 from Villa Rica and it's doing something bizarre — everything looks perfect but won't even attempt to turn over. I'm seeing prices ranging from $500 to $3000+ and want to understand what's a fair price. The original link was https://atlanta.craigslist.org/wat/rvs/d/villa-rica-onan-cummins-generator/7895531063.html.

What should I be looking for when I go check one out? Don't want to buy someone else's headache but also don't want to pass on a good deal because I'm being too picky. Any red flags I should watch out for? …more

Onan generator is misfiring and I traced it to a bad spark plug wire — part 166-0779 — but it's backordered everywhere for months. Generator is my only power source for boondocking and I need to find a compatible aftermarket wire that'll work without modifications. …more