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Old 26-08-2019
Majiklister  Majiklister is offline
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Default Low oil pressure sensor
Did an oil change on 2007 3.0L crd yesterday and am now getting the low pressure warning light, Light started coming on and off at idle and now on all the time at idle until I give it a few revs and after a drive light on all the time. Just about to change filter and o rings with a mann filter and new oil.
Oil cap and attachment look OK, but I would like to check if pressure switch is working but cannot find it. Have attached photo if someone could tell me which one. Scanner doesn't come up with any codes except low oil pressure. Research says might be something blocking sensor.
If there was a litre to much oil could this give a low pressure light.
Any help would be great.
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Old 26-08-2019
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I had this just as my filter blocked with aluminium glitter and shavings, with a good dose of knocking. Hopefully yours is still sweet.

A touch more oil shouldn't hurt.

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Old 26-08-2019
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Might just be the sensor. Mine failed after an oil change as it got gunk in it.

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Old 26-08-2019
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Thanks guys for fast response. Would you happen to know which sensor in photo is the one, I am assuming its the bottom one with the 3 wires.
Cheers
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Old 31-08-2019
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Well I drained oil and got about 12 litres out so I assume I didn't drain all oil out the first time. Put in new oil 9.5 litres and new filter took jeep for a drive and light still staying on in low rpm but would go out at higher rpm after about 20 minutes driving light went out and hasn't come on. So not sure if I had to much oil in and this was making oil light come on or if there was some gunk affecting the sensor which eventually moved. Took a bit to find but looks like the bottom sensor with the three wires going to it is the oil pressure switch.
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Old 31-08-2019
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Will be gunk in the sensor that cleared out, mine was full of crap when I changed it.

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