oil pressure v8i

[jimthelandyman]

I have just bought a disco 3.5 v8i auto, after a long run when the engine has been warm and when i stop the car and leave it in drive the oil pressure light comes on but then dissapears when i set off or put it in nuetral, is this a common fault. Does anyone know what kind of resistance i should get through the sensor or another way of checking the pressure sensor. I have also heard of the oil pumps failing on v8's can anyone reccomend a good oil pressure gauge and fitting kit to check and monitor the pressure.

[JumboBeef]

I don't know the answer but can only say it has never happened to our 3.9 V8 in the 2.5 years we've had it.

[bobtailed disco]

The same thing happened to my v8 it turned out to be grass and mud round the wire on the oil pressure switch, cleaned it up then all ok.

Rob

[jimthelandyman]

Gave the spade connector a clean on the sensor it seems a bit better, will probably put a new sensor on it. Taking it back to the place where i bought it and they are putting some fancy oil in it i'm not telling them about cleaning the connection lol.