Re: Low oil presure after 15 min runing at 65 mil engine...
Change the oil sending unit to see if the sending unit is at fault,if this does not fix the problem,then the main,and rod bearings in the engine are worn.
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im sorry there is no pressure off.
running pressure is low because.
1: wrong oil, or AF in oil, or brake fluid from jiffyboobs. or water.
2: fuel in oil , bad bad bad.
3: dumping additives it it. bad.
4: BEARINGS IN ENGINE SHOT. (warn bad)
5: THE GAUGE FIB'S.
I NEVER NEVER NEVER trust car gauges, i use MINE>(in hand)
i also test my hand gauges, (ask)
The sending unit was my guess...Could be the oil pump going bad...Or even a to good brand oil filter restraining the oil from recirculating...I've seen it happen..
first thing check is the engine oil level.if oil level okay check oil pressure should be for the 4.2 engine oil pressure should be 12 psi @ 1200 rpm for the 5.3 oil pressure should be 18 psi @ 2000 rpm if oil pressure good problem in the oil pressure sending unit. if oil pressure is low problem faulty oil pump or worn crankshaft bearings if oil pressure low engine will have rod knock.make sure you are using correct oil viscosity if oil too thick you will have low oil pressure oil too thin you will loose oil pressure.
This is normal. On your car, on a cold start the pressure will be around 75 PSI. After the engine warms an oil pressure of 15-20 PSI at idle is just what it should be. The oil pressure gauge should escalate when accelerating up a bit to. If your old school like me 15 PSI mean danger but tat Caddy is just fine.
If you have any comments please feel free to leave them here.
Ok
filter problem could be there filters that have a valve used to chek
the oil gallery is not downloaded and so when the engine begins to work
up the pressure quickly. Also in other systems, this valve is fitted in the pump aceite.thanks good luck
Change the oil and filter first.If its still sounds bad then have the oil pressure checked at a garage before you do any damage.If its not making any rattling noises then try changing the oil pressure switch.
if the engine has high mileage the lack of oil pressure could be worn main bearings.but if your lucky it could be a faulty oil pressure sending unit.fyi there are 2 sensors one is desingned to tell the ecm low pressure to shut off the fuel pump to prevent engine damage this would explain ur jerking
The clicking sound is from lack of oil or lack of oil pressure. When the lifters pump out then they have too much slack in them and thus the clicking or tapping sound. Sorry to say this, but the engine is either very tired or the oil pump has about had it.
After making sure that you used the propper oil filter and the correct grade of oil. inspect the Oil presure switch. if you see it wet with oil, replace it. given that you hear no internal engine noises, while you come to a stop and the light comes on. Then more that likely you have the wrong filter. please doubble check your oil level, 2.. Hope this helps
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