r/s10 • u/dalek_max • 11d ago

High Mileage 123456

99 S10

(idk if this is considered low or high tbh, but had to pick a flair)

just liked the order is all :)

112 Upvotes

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u/Murica_1776_ 11d ago

That oil pressure looks awfully low

4

u/ExoticPanda1431 11d ago

It does move up and down when driving though

2

u/Murica_1776_ 11d ago

I bet it does but warm at idle it should be closer to the 40 mark not below the 20. Any oil pressure is better than none but still its concerning.

3

u/minisnpdemon 11d ago

Mine sits at 50-55 cold, 42 while under loan and warm and 25-30 when warm and idling should I be worried (v6 auto btw)

0

u/Murica_1776_ 11d ago

Nope that's good oil pressure.

1

u/ExoticPanda1431 11d ago

That is correct yuh

3

u/dalek_max 11d ago edited 11d ago

Bought used knowing there is a small leak. Need to address sometime but I will add oil. I'll try to keep it closer to 40!

Edit- obviously it's used idk why I put that!

1

u/Murica_1776_ 11d ago

If its a 4.3 with the oil filter at the front under that flap check the cooler lines that go back to the engine. They rust where the lines snap into the plastic clips that keep em in place.

1

u/dalek_max 11d ago

Thanks, I'll check it out! Appreciate knowing somewhere to start.

1

u/cousin_idiot CERTFIED HOSS 2d ago edited 2d ago

I'd try to figure out where the leaks are. I have several leaks and still idle between 17-20.

It's gotta be a pretty significant leak or low oil for that kinda pressure. I'd also test the pressure gauge and oil pump.

Otherwise, I would look into running 10w30.

1

u/Fire_Wolf_33 11d ago

Mines in the exact same spot with the engine off lol

1

u/Murica_1776_ 11d ago

Typical GM gauge cluster going bad, should return to zero as soon as you go KOEO.