1984 New Yorker 2.2 Turbo oil pressure low on ilde

The oil pressure switch and sending unit is located directly above the oil filter and next to the starter motor on the lower side of the engine block.

if you are full of oil, this could be as easy as an oil pressure sending unit, which you may see near the oil filter.

It could be an oil pump going bad, and you will be looking at a mechanic shop at that point.

I would check the connection of the oil pressure sending unit to make sure it's plugged in properly.

People have told me the pressure quit working after an oil change, and I found that in most cases, whoever changed the oil damaged that sensor.

I missed this question before.
That sounds like a failing oil pump for sure.
let me know if I can help any time in the future.

Hook up a mechanical test gage to the oil pressure port where the oil pressure sender goes and verify the oil pressure is at least 20-30 pounds at idle engine hot. If the oil pressure checks ok on the test replace the oil pressure sender. You should be able to borrow this gage from Autozone or O'reilly auto parts with a deposit and a credit card.

The oil pressure switch or sending unit is a unit that receives an electrical signal showing what your cars oil pressure is.And yes it does partially does let you know when there is a problem somewhere in the oil system.For example if your filter gets clogged up your oil pressure will go down and then go up when you accelerate.If there was a leak in the system first you would probably see the leak And if the oil pump or oil pump shaft were to break you would have no oil pressure.So you can see the importance of having an oil pressure switch.I feel there are 2 guages that are important to watch are your oil guage and water temp guage they can tell you allot about how your car is operating.

Before you spend money on a new gauge. Get an oil pressure testing gauge for $20 , remove the oil pressure sending unit and test the oil pressure. If oil pressure at idle and 3000 rpm's is a-ok via spec's ( big money repair items) then its either the gauge a clogged or defective sending unit or the circuitry. (little money repair items)
You can also have this done at a repair shop.

if your pressure is too low this fix is quite expensive and not worth for older cars, so the first thing you should try to keep it running is to use THICKER OIL (W20-50 or such), + oil stabilizier (any good oil additive). I tried it in my Jeep,- helped right away.. Good luck

some of these cars had a low pressure fuel cut off switch buit into the oil pressure switch, make sure you have the correct oil sending unit. hope this helps let me know. ps use a a/cdelco part

I had this problem on my gto i turned out it was the wire from the oil pressure sender unit , it was all corroded with oil and ready to snap off , try the wiring first and if its not that then the oil pump is on its way out.


john

I believe your sending unit is located on the top of the block, towards the fire wall. You can get an inexpensive pressure test gauge and put in place of your sending unit. It should be a 1/4" NPT fitting. Does the pressure gauge fluctuate between low and high RPM? If so, chances are that your oil pump may need to be replaced.