My oil pressure gauge started acting weird today, I could be going down the highway at 60mph(or any speed for that matter) the gauge starts to jump around then will stick in a position, then jump around some more and then stop. Any ideas as tot he problem? Oil Pressure sending unit?

 

It could be the sending unit, or it could be the gauge itself.

 

Change your oil recently?

This is generally a sign of a failed sending unit. The factory senders were notorious for this type of behavior.

 

Have about 1k miles on this oil.

 

BTW, where is the Oil pressure sending unit located at in the block?

 

Could this also be why the car takes about 3-4 seconds to fire up?

 

It's located right above the oil filter on the driver's side of the engine block.

 

Maybe, if your fuel pump relay is also dead.

 

Location of that?

 

Do you hear the fuel pump running for 2 seconds when you first turn the key on, before you start the engine?

 

last i checked it did, the car sincei purchased it, has always taken about 2-4 seconds to fire up, when cold, when hot it fires right away.

 

It doesn't sound like there's anything wrong with the fuel pump relay then.

 

i had the same problem with the oil guage. There is a OIL SENDING UNIT and then there is a OIL PRESSURE SWITCH i changed the pressure switch which is located behind the distributor and this fixed the guage from jumping around crazy. ANd this also fixed a oil leak i had

Hope this helps any