yesterday, while at a stop light, I noticed my oil pressure gage dropped down to zero. When I rev up the engine the gage would read normal (over
40). Let it idle and it now drops to zero. If I take it out of gear (neutral or park) the gage would read normal for idle (just below 40). Question: where would I find the oil pressure switch on the 318. I can find the oil level switch on the pan but I am not sure where the pressure switch is. Any ideas with a good drawing or photo would help Tanx