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twavalanche
Forum Newbie
Posts: 1
Reg: 06-24-12
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 06-25-12 04:38 PM - Post#2241238
I have a 2007 Avalanche with 210,000 miles. When engine is cold it has 15-25 psig oil pressure. Sometimes I get a warning to shut off engine. When the engine warms up, I have 30-50 psig. I have replaced oil sending unit and a screen beneath oil sending unit. I was recently told to replace O-ring between oil pickup tube and oil pump. Engine runs good and does not use oil.
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 Rick_L
Honored Member
Posts: 24731
Loc: Katy, Tx, USA
Reg: 07-06-00
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06-25-12 06:54 PM - Post#2241293
In response to twavalanche
That's backwards. Normal is for the oil pressure to drop a bit when the oil warms up.
My 09 idles at 20 psi hot (or a little less) and goes down the the road at 40-45 psi hot. Not a lot more cold, maybe 5 psi.
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CharlieC
Senior Member
Posts: 1747
Loc: Flower Mound, TX,
Reg: 03-27-02
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06-27-12 06:55 PM - Post#2242095
In response to Rick_L
I agree with Rick, something very odd going on. Have you tried a simple filter change? I wouldn't think the O-ring would be a problem unles you had either really eratic pressure or really low pressure all the time.
Charlie
"Yeah, I'm just going to clean it up and make it a driver." May 2002
'57 BelAir Conv. GMPP LSX/L92-440 T-56 (almost...)
'74 K5 Blazer 4x4
'09 Avalanche LTZ |
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