Question about 2005 Peugeot 405

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Oil level sender

When i turn the ignition on it shows the oil level empty, even though its full

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  • barrie_gough Jan 28, 2009

    thanx 18wheeler, yes it does go off after it has started, whats the cure please

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Just had the same problem with my peugeot 307.Showing empty when cold ,ok when warm.Garage fitted a new sender unit in the sump,ok now

Posted on Jan 29, 2011

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Does it go off after the car is started? If not, replace the oil sending unit, if it still doesn't go off, have the oil pump checked, the pressure release valve might be stuck.

Posted on Jan 28, 2009

  • Richard Delahant Jan 28, 2009

    I need a little more info, does it stay off the whole time the car is running? and has it been doing it since you had the car? If you have answered yes to these, than that's normal.A lot of the lights on the dash come on when you first turn the key on.

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Do your other gauges/warning indicators work properly with the ignition on? If not, check for power at the fuse panel/fuses.

If they do then partially remove your cluster with connector still installed and check for voltage at cluster connector and gauge. Check continuity of cluster and gauge for ground.

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Sender troubleshooting:
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    1. Disconnect wiring connector at sender unit, then connect resistor between gauge lead and a suitable ground.
    2. Turn ignition switch to On position.
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    4. With 22 ohm resistor, the gauge pointer should contact the Empty mark.
  1. Perform test with fuel sender of known quality as follows:
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    2. Disconnect wiring connector from sender and connect it to test sender.
    3. Move float rod away from fuel filter against Full stop position. Wait approximately 30 seconds, then turn ignition switch to On position. The gauge should read on or above the Full mark.
    4. Move float rod toward fuel filter against Empty stop position. Turn ignition switch to Off position. Wait approximately 30 seconds, then turn ignition switch to On position. The gauge should read on or below the Empty mark. If gauge works properly replace sender, which involves dropping fuel tank.

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Test the resistance of the sending unit with the lines disconnected, the resistance should be 2.6 to 3.8 ohms full tank, 63.3 to 67.5 ohms empty tank; and test for voltage across the top of the sender unit, if no voltage, that's likely the problem!

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Good luck!

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