Hi,

I've change the oil sensor switch on my K1500 6.5L diesel dated 1996 (300 000 km). It had correctly operated for 3 weeks and suddenly the gauge pressure was blocked on the right above the maxi (sometime worked but gauge indicating hight pressure). No warning and the engine coolant temperature is correct. Thanks and sorry for my English.

 

So the needle on the gauge is holding all the way to the right and stays there even with the engine off?

 

Hi, yes even when the engine off.

 

But when I turn on the key the needle is holding on the left (0) and when the engine on, the needle is holding to the right and stay.