how to diagnose 5.3 low oil pressure
when cranking her up (she has 155K miles) it runs then the low oil preasure-turn off engine came on after a few minutes.
During the stuck in mud episode (3-4 minutes of burning down the tires to get her unstuck) is when I first observed (edit 2nd time the 1st time was on her initial 200 mile trip turned out to be 2 quarts low this was about 1K miles ago so I haven’t sean this turn off engine since untill now) turn off engine checked oil it was 2 quarts low added 2 quarts so I know I have the required 6.5 quarts.
during the burn down of tires I screwed up again accidently buying the wrong oil stuff was desil engine oil maybe the extra thickness of added 2 quarts of desil oil is falsely displaying turn of engine?
I have since drained plan to refill today w/ correct 5w30 regular oil.
I haven’t driven her after crank up to see if pressure would increase. (still not sure about if the new fan clugh is tight) I let it run for about 3-4 minutes then the turn of engine comes on.
I hope I don’t have to remove the oil pump front engine cover to check relief valve or pump itself.if I have to please recommend a flywheel lock tool, last time I took a cover off I broke several screw drivers trying to lock FW.
Additionally:the radiator cross support bar was laid just in front of cowl and I lowered the hood not closed just lowered to 1st click. Is it possible this bar crusted or damage the oil pressure sensor? I know on LS1 this sensor is located at back of intake kindof tucked down.
Lastly: can the oil pan be lowered enough for oil pump pick up tubes O ring to be swapped w/out removing front diff. CV axels & suspension?
I’m not a fan of the numberless guage so I’m assuming straight up 12oclock is normal 40psi at idle 1oclock is 60 psi normal.next crank up Ill observe these needle positions.if I remember correctly the needle was point to 10 oclock.
Thanks for advice
when cranking her up (she has 155K miles) it runs then the low oil preasure-turn off engine came on after a few minutes.
During the stuck in mud episode (3-4 minutes of burning down the tires to get her unstuck) is when I first observed (edit 2nd time the 1st time was on her initial 200 mile trip turned out to be 2 quarts low this was about 1K miles ago so I haven’t sean this turn off engine since untill now) turn off engine checked oil it was 2 quarts low added 2 quarts so I know I have the required 6.5 quarts.
during the burn down of tires I screwed up again accidently buying the wrong oil stuff was desil engine oil maybe the extra thickness of added 2 quarts of desil oil is falsely displaying turn of engine?
I have since drained plan to refill today w/ correct 5w30 regular oil.
I haven’t driven her after crank up to see if pressure would increase. (still not sure about if the new fan clugh is tight) I let it run for about 3-4 minutes then the turn of engine comes on.
I hope I don’t have to remove the oil pump front engine cover to check relief valve or pump itself.if I have to please recommend a flywheel lock tool, last time I took a cover off I broke several screw drivers trying to lock FW.
Additionally:the radiator cross support bar was laid just in front of cowl and I lowered the hood not closed just lowered to 1st click. Is it possible this bar crusted or damage the oil pressure sensor? I know on LS1 this sensor is located at back of intake kindof tucked down.
Lastly: can the oil pan be lowered enough for oil pump pick up tubes O ring to be swapped w/out removing front diff. CV axels & suspension?
I’m not a fan of the numberless guage so I’m assuming straight up 12oclock is normal 40psi at idle 1oclock is 60 psi normal.next crank up Ill observe these needle positions.if I remember correctly the needle was point to 10 oclock.
Thanks for advice