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1988 580K oil light / alarm

hammerhead3006 ยท 2013-11-17 21:44

The engine oil light and alarm are on all the time from an idle on up to 2K rpm . Unplugged oil pressure sender , no change . Any ideas??:Banghead

Replies3
  1. #1sheepfoot2013-11-18 00:25

    I would check the harness inside the frame on the rh side around the brake housing. You will have to climb up under it, the harness comes down from the canopy and hooks to the front harness. One of the pins or several are not making contact at that connection, they may be ate slap up and rusted out. It is not uncommon to have to jump around the pins there to have the current flowing again. The light should be on with the key, after starting should go out. You can also ground the wire at the sending unit, this should make the light and buzzer quit. If grounding it out does not turn the light off or the buzzer, you have a open wire, use your test light and check for current at the pressure switch, wire unhooked with the key on. There is also two diodes in the rh dash behind the cluster, several grounds. Does your machine have the fuse block on the rh side of the engine close to the front of the starter. You may also want to screw a pressure gauge in to be sure you have good pressure. These machine's had a lot of corrosion issues in the connects, the wire you are looking for is a yellow/black and it runs from the pressure switch to the connect, up thru the floor, tees into the warning module and on to the pressure switch light. Just some thinking.

  2. #2hammerhead30062015-11-01 12:09

    New issue. Keep blowing a 30amp fuse at the fuse block by the starter. it's the one that controls all the accessories, lights, fan .wipers, electric solenoid for shifting gears. Where do I look to fix it.

  3. #3Blueboy2015-11-01 21:14

    Think I would do this first. Did the harness get crushed anywhere?