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2011 6.2 Escalade and oil pressure probs

 
Old 03-08-2019, 06:33 PM
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Question 2011 6.2 Escalade and oil pressure probs

I bought this Escalade used with 111k miles. Itís all stock with VVT & DOD.
When I bought it, the guy said it showed low oil pressure, it would go into the single digits.
Before I changed the oil, as it was black, it had 30 psi cold and I warmed it up a bit to change the oil.
changed the oil and it was high 20s but warm, not cold.
I let it idle and after a warm up, low 20s I rev it up high 20s maybe low 30s
I drove it around and it may go into the low 30s.
I drove it hard and up to 4-5k rpms and itíll only be in the 30s.
So how fukd am I with this engine? I donít think itís the sensor as I thought they either work or donít work.
Or am I ok, as itís a daily, to not rev it over 3k rpms?
Or will it slowly just mess up?
Need some solid input on this engine.
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Old 03-08-2019, 07:11 PM
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Did you inspect the oil filter element? That’s my first step here. It will tell you how your bearings look. Second, I’d throw a sensor at it, if filter is clean. They can be off marginally. Is the engine quiet, meaning no mechanical sounding hints of issues?
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Old 03-08-2019, 07:21 PM
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I would put a good filter on it for starters like stated. Also it's quite common on the 6.0 and 6.2's that the oem cam bearings go....
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Old 03-08-2019, 07:59 PM
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My guess would be that one of the several oil pressure relief valves are stuck open or partially. Iíd change the oil and substitute 2-3 quarts of trans fluid in an attempt to clean/free it.

I have used this to quiet ticking lifters on cold start, as well as free up a relief valve stuck closed, successfully both times.

Nearly free shot at a resolution. Spun cam bearing could also be, as mentioned.

You can sub in a mechanical test gauge on a hose during the sensor swap.



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Old 03-08-2019, 08:09 PM
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No I did not inspect the filter element and it’s gone. Trash pikd it up.
Engine is quiet, no noise at all.
Which is a good filter? I have an acdelco pf48e on it.
is that the only way to fix the relief valve and where are they located?
The tranny fluid I’ve never heard of before.
Yeah if I take the sensor off, I will put a mechanical gauge on it 1st.
‘I have one on my ls swapped car.

Last edited by LS1 pwrd NOVA; 03-09-2019 at 06:10 AM.
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Old 03-08-2019, 08:32 PM
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One relief valve is on the oil pump itself. Second one is threaded into the oil pan on the inside. There may even be a third, I would have to check.
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