oil pressure gauge dancing

[Frank K.]

what makes the gauge flutter at idle and smooth out at cruising speeds?

[Edward J.]

Re: oil pressure gauge danceing

Frank, you just may want to test the oil pressure with a gauge first,this will lead you in the path of which way to go, gauge or pump. I am thinking that 73's are still a mechanical gauge still not electrical??

[Edward B.]

Re: oil pressure gauge danceing

From your description it is impossible to tell weather it is a gauge problem or an engine problem. Install a temporary mechanical gauge and report back.

[Jimmy P.]

Re: oil pressure gauge danceing

Ed,
Yes, you are correct, the 73 oil pressure gauge is still mechanical.

[Frank K.]

Re: oil pressure gauge danceing

It is a 1977 car!

[Edward J.]

Re: oil pressure gauge danceing

Frank, I Believe by 77 the oil gauge is electrical Most of the time with these style Gauges the oil sending unit goes, But it really best to still Do a mechanical gauge test. If you don't have one, The oil sender is a 25-30 dollar part might be worth a try.