Forum Discussion

Bgreenberg123's avatar
Bgreenberg123
Explorer
Jul 29, 2015

generator quit while driving

Any advice please???
Our genny quit while driving down the road. Fuel supply show nearly full. We were driving down the road and it was working until it stopped. Thought it might be overload with AC running so turned off fridge and rear ac unit. Ran for a while and then quit again. Restarted one more time and ran for a few minutes and then quit for good. Any ideas? Thanks
Bruce
2007 Endeavor by Holiday Rambler
  • gbopp's avatar
    gbopp
    Explorer
    Jul 29, 2015
    I'm not familiar with diesels, on a gas generator the first thing I would do is check/replace the fuel filter.
  • MNtundraRet's avatar
    MNtundraRet
    Navigator
    Jul 29, 2015
    Mine did that about 4 years ago. It turned out that the circuit-board had a crack or short. The board was replaced.

    It might be a dirty contact on the wire connections to the board. Clean the connections. While driving the generator gets bounced around more than when parked at a campground.
  • RoyB's avatar
    RoyB
    Explorer II
    Jul 29, 2015
    I would also check the OIL AUTO-MATIC CUT-OFF... Could be a tad low on oil and the movement associated with driving trips the OIL sensor monitor...
  • bdpreece's avatar
    bdpreece
    Explorer II
    Jul 29, 2015
    When mine did that I had developed a very small coolant leak and it was low enough that after awhile the gen would shut down due to overheating.
  • BTPO1's avatar
    BTPO1
    Explorer
    Jul 29, 2015
    RoyB wrote:
    I would also check the OIL AUTO-MATIC CUT-OFF... Could be a tad low on oil and the movement associated with driving trips the OIL sensor monitor...


    X2 on the oil level. Thought mine was OK on the dipstick. I was told that I needed to keep the level higher and have never had a problem with it shutting down again. JMO
  • MEXICOWANDERER's avatar
    MEXICOWANDERER
    Explorer
    Jul 29, 2015
    Is there a website with generalized troubleshooting lists of generators with diesel prime movers? When I had a Yamaha 5500 diesel genset I sprang for the factory service manual. Proved invaluable.Can't imagine a motorhome owner with a genset aboard who figures its a Good Thing to forget about buying a factory service manual. If you don't use it, your mechanic will.

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