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Motor home onan gererator 4000 overheats. New air filter and oil. Still overheats and sputters out. Smells like burnt rubber.

Posted by Mike Ferrari on

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5 Related Answers

fjrogers

  • 1 Answer

SOURCE: Onan 4000 RV Generator - where is the oil drain plug?

It should have a cover on the floor bottom that is held in place with two torx (star) screws. remove the cover and you can remove the plug with a 9/16 socket.

Posted on Dec 02, 2008

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Anonymous

  • 116 Answers

SOURCE: Oil type for Onan 4000 generator

SAE 15W-40 is what i used to use
synthetic? not sure about that one there may be oil pres switch that could give you a problem.

Posted on Apr 17, 2009

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mamicheddy

mamicheddy

  • 79 Answers

SOURCE: ONAN 4000 RUNS FOR ONE HOUR AND DIES--ANY IDEAS WHY?

If your unit is running fine and then all of a sudden it just shuts down it is usually that you stopped creating voltage. You need to check the brushes and rings. If you are able to start the unit right up without any hesitation and voltage is being produced, then your fuel pump is breaking down. If you do have hard time restarting then you may have clogged fuel filters. One at the carberator and one at the fuel pump.

Posted on May 10, 2009

Anonymous

  • 508 Answers

SOURCE: 4000 onan will start and run 5 to 10 minutes and

check oil sensor and oil level check tank for sediment and lines and crb for sediment also coil maybe going bad!!! :)

Posted on Jul 02, 2009

Anonymous

  • 77 Answers

SOURCE: onan 4000 start good runs only ten minutsand shuts down,starts up

First locate the oil pressure switch and see if you can bypass it,then see if it runs. If not check the fuel filter and fuel pump,make sure solonoid for fuel pump is kicking on.

Posted on Aug 10, 2009

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Oil is being pulled from valve cover to air filter on my onan microquiet 4000 generator, what do I need to do?


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You will need to take out the reed valve, clean and re-install. Be aware that a small amount of oil is common, also do not over fill the oil. The full mark is hot. Too much oil in the crakcase can build up pressure and keep the reed valve open.

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Onan generator service codes


Check the spark plug and the ignition coil for good sparking.

Get the spark plug out, or with another spark plug connected to high voltage cable, outside the motor, the outer part of the plug connected to motor ground and see if spark is present at cranking.

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Onan Generator stopped working in motorhome because the gas got too low. I blew out the front fuel filter,changed oil and filter, air filter, one spark plug and now it won't start. Is there a fuel shut...


Yes it wil not let you run your motorhome out of fuel they set it up that way so you dont strand yourself you may have a air bubble in the fuel line to the generator try blowing air generator fule line back into the tank

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What is the oil filter for onan4000 generator


yes--- where is the oil filter on a onan 4000 in toy hauler?

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ONAN 4000 RUNS FOR ONE HOUR AND DIES--ANY IDEAS WHY?


does it have original oil in it? if so they use a lighter weight oil than recommended for engine break in. change your oil and filter and see if that doesnt solve it.could be thinning out loosing pressure when hot. i have seen this beofore.. :)

Mar 24, 2009 | Watts Onan Portable Generator - 4000 ,...

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