LLY: Fluctuating oil pressure LLY

[tim_Lly]

I have an 05 duramax and I noticed the other day the oil pressure fluctuates on acceleration it gets as low as 21psi and midrange or 3/4 of the way on the gauge is this a problem ? Thanks!


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[IOWA LLY]

Could be just an electrical issue. Or could be early signs of crank failure.

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[Awenta]

Does a scanner show the same?

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[tim_Lly]

Yeah the chip reads the same cts 2 edge juice with attitude


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[Awenta]

Verify with a mechanical gauge

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[tim_Lly]

Ok thanks


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[mebob2001]

I have an 05 duramax and I noticed the other day the oil pressure fluctuates on acceleration it gets as low as 21psi and midrange or 3/4 of the way on the gauge is this a problem ? Thanks!


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That's 100% normal. When cold it will be around 80 psi when accelerating. When it's up to full temp 19 to 22 is normal depending on oil temp.
As for it changing when rpms go up. That's to be expecting oil pump is moving faster so it will flow more oil. No need to check anything unless it goes bellow 15

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[tim_Lly]

That's 100% normal. When cold it will be around 80 psi when accelerating. When it's up to full temp 19 to 22 is normal depending on oil temp.
As for it changing when rpms go up. That's to be expecting oil pump is moving faster so it will flow more oil. No need to check anything unless it goes bellow 15

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Awesome thank you man


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[NC-smokinlmm]

That's 100% normal. When cold it will be around 80 psi when accelerating. When it's up to full temp 19 to 22 is normal depending on oil temp.
As for it changing when rpms go up. That's to be expecting oil pump is moving faster so it will flow more oil. No need to check anything unless it goes bellow 15

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Yep, totally normal. Don't worry about it...

 

[tim_Lly]

Yep, totally normal. Don't worry about it...

Sweet thanks man


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