Neglected No More: 2019 Motorhome with Ford V10 and Onan Generator Brought Back to Life
When an Onan generator refuses to start, it’s often a sign of long-term neglect — and that was exactly the case with this 2019 Motorhome built on a Ford 6.8L V10 chassis we serviced in Encinitas, CA.
This RV had been sitting unused at a storage lot since new. The owner recently tried to start the generator but noticed fuel leaking from the carburetor and a complete lack of ignition. Generators that sit for long periods without running tend to develop clogged jets, stuck floats, and degraded fuel lines.
The Diagnosis
After a detailed inspection, our technician found that the carburetor was flooding fuel out of the intake. The generator simply couldn’t fire. The fix required ordering genuine Onan factory parts and performing a complete fuel system service.
The Repairs
Once the parts arrived, we:
Replaced the carburetor with a new factory unit
Installed a new spark plug
Changed the engine oil
Ran the generator under load to ensure steady performance
After the service, the generator started immediately and ran smoothly — a huge improvement from its non-starting condition.
Why Generator Maintenance Matters
Generators need to run regularly — even when your RV is in storage. Running them monthly helps keep the fuel system clean, prevents varnish buildup, and ensures lubrication of internal parts. Neglect can cause fuel leaks, hard starts, or complete failure.
If your RV or Motorhome generator hasn’t been started in months (or years), it’s time for a check-up before your next trip.
Carlsbad Mobile Mechanic provides complete Onan generator repair, tune-up, and RV maintenance services in Carlsbad, Encinitas, and Oceanside, CA.
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