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Generac xl 4000 will not keep running after starting

Generac 4000 XL portable generator will start and run for about 10 to 12 seconds and then shut down. Oil is good, cleaned carb and air filter, cleaned out tank and replaced gas filter. It will start on 2nd or third pull after waiting about 10 seconds. I noticed oil shut down switch light will blink when it is almost shut down completely but not but not at normal idle speed.

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  • Generac Master
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Try disconnecting the wire going to the low oil switch. if it runs then you need a new switch.

Posted on Sep 02, 2017

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Posted on Jan 02, 2017

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guarionex

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SOURCE: Generac generator will start, run for a moment and

Its the Oil sensor just pack the oil sensor wires together with a smal screw and bolt and try starting if it starts your problem is the oil sensor they tend to go bad I have run through several myself . To avoid hassles I now have overidden the sensor but I check the oil level everytime I need to use the generator

Posted on Sep 03, 2010

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I need a rectifier or avr for generac 3500 xl genarator


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  • Jun 28, 2016 | Generac Electrical Supplies

    1 Answer

    What kind of oil do you use


    Judy, Generac portable generator oil recommendations. Above 40°F, use SAE 30. Below 40°F and down to 10°F, use 10W-30. Below 10°F, use synthetic 5W-30. Oil should be changed after the first 8 hours of operation and every 200 hours of run time thereafter.
    Check the attached links,instruction and guides, Good luck
    "I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

    http://www.generac.com/service-support/faqs/portable-generator-faqs

    http://www.generac.com/service-support/faqs/home-backup-faqs

    Best oil for Generac generator Lawn Mower and Small Engine Bob Is The Oil...

    Generac Generator Oil Change

    Apr 18, 2016 | Generac Electrical Supplies

    1 Answer

    Generator hard to start and sputters like its missing


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    1 Answer

    Starts up but will not run but for a few seconds


    Check the oil. Some engines will shut down if the oil is low. Otherwise you probably have a dirty fuel filter and the carburetor fills up with gas long enough to start but isn't getting enough gas to keep it full.

    Feb 13, 2014 | Generac Guardian Ultra Source 15,000 Watt...

    1 Answer

    Cranks then dies


    yes this unit will run for only a second or two then dies. the fuel pump is pumping well

    Apr 24, 2012 | Generac Power Systems Generac 5734 15000...

    1 Answer

    Need Users manual for Generac 4000 EXL generator


    Hi and welcome to FixYa, I am Kelly
    Below is a list of all the manuals an owner should have:

    For the 4000 EXL Your actual model number is 01645.
    Operators manual:
    http://www.generac-portables.com/document/index.cfm?doc=1645_0EN11CS_LO.pdf

    Wiring Diagram:
    http://www.generac-portables.com/document/index.cfm?doc=1645_0WDS_LO.pdf


    Parts List:
    http://www.generac-portables.com/document/index.cfm?doc=1645_0PARTSLISTCCS_LO.pdf

    Thanks for choosing FixYa,
    Kelly

    May 18, 2011 | Garden

    2 Answers

    Generac NP 50G Stops after 2-30min.


    check the oil sensor circuit. I know when I take out or short out the sensor ckt on mine, it'll keep on running. low oil isn't good for any motor.

    Oct 20, 2009 | Generac Guardian Ultra Source 15,000 Watt...

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