oil light..

[Hath]

ok after having an aweosme day yesterday.. fixing ym car upto mot stanadrds etc.. i ahve found a problem today whihc quite frankly has stumped me...

oil light has come on.. now the engine isnt starved of oil.. it has plenty of oil as done an oil change yesterday..( light only came on today)

aroudn the connecotr its a taddd oilly and moist possbly from spilling some oil when removing the old filter..?

anyone shed any light as im quite frankly stumped..

[Hath]

[Gwynleym10]

I would clean around the oil sensor, if it really dirty. Take it out etc

[Hath]

still haveing trouble.. would the filter be a problem for the oil light to come on.. as the filter i have is a slightly diffrent one to the one that i took out.. ie the one tha ti took out had a metal sheef around it with holes in.. an the one i stuck in was ltierlaly a filter type.. wiht a metal sheef on the insdie what is the possible causes to the oil light comeing on..? i only undone two blodoy things sump plug and oil fitler houseing..:S i have no il leaks.

[Hath]

also was an automtic before with an oil cooler in the rad...??? possible problems?

[Hath]

i used 10w 40 oil aswell? is this.. a problem? i cnt make head to tail fo the reccomended stuff in the owners manual its a M42 is engine

[HairyScreech]

try sticking the old oil filter on and see if this cures it. cant hurt to try,

[Brianmoooore]

Pull the connector off the oil pressure switch as carefully as you can, without disturbing the wire any more than possible. Does this make the light go off?
The oil pressure switch wire runs around the front of the engine where the insulation gets brittle and falls off, or gets damaged by the water pump pulley, and if it shorts to earth the oil light will come on.
Oil pressure switches can fail quite readily as well.

[Hath]

i took the connecotr off and hte oil light went out and stayed out..

[Brianmoooore]

i took the connecotr off and hte oil light went out and stayed out..

Time for a fresh switch then. If that doesn't cure it, time for a fresh engine.

[Hath]

what... fresh engine ive only jsut swapped it for a horrid m40 auto engine its a m42 manual now.. grar

[Brianmoooore]

You'd better hope a fresh switch cures it then! Any engine that doesn't produce enough oil pressure to make a good switch turn out the pressure light isn't going to last long!!

[Hath]

ah fuckety fuck fuck, if it doesnt cure it.. its going the right way for a 6 pot!

[munky30]

surely it wouldn be the pump if it wasnt the switch? No need to replace the whole engine?! There must be a reason its not getting pressure...