95 Blazer Oil Pressure Gauage

My Blazer has 153K on it. I drive it 60 miles a day to work...highway..but in stop and go traffic most of the time. I've noticed my oil pressure guage is moving around like my tachometer. Not sure why this is happening. My pressue is up when I first start it up and drive. As the engine warms up, that's when I begin seeing my pressure drop. When it's idle, the pressure drops, then moves up when I accelerate. Any one have any thoughts as to why this is happening? Anything I need to be concerned with?

Most likely you have a bad oil pressure sending unit, It's a pretty common problem on our trucks...

Is this something I need to be concerned with? Thanks

Is this something I need to be concerned with? Thanks

Nothing is wrong with your sending unit.

Engine oil pressure varies with engine rpm seeing the oil pump runs off of the distributor gear.

You are completely normal, it is supposed to do that.

Nothing is wrong with your sending unit.

Engine oil pressure varies with engine rpm seeing the oil pump runs off of the distributor gear.

You are completely normal, it is supposed to do that.

Amen BlazerLT, this sounds pretty normal to me! Mine does the exact same thing.:grinyes: