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High oil pressur with acceleration..
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jrl4166
New User
Apr 4, 2013, 4:14 PM
Post #1 of 8
(3093 views)
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High oil pressur with acceleration..
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2006 Chevy Silverado 1500. 75 K Miles. The Oil pressure is normal at idle. Oil pressure increases considerably with acceleration. performed oil change 300 miles ago. what would cause the high will pressure??
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Discretesignals
Ultimate Carjunky
/ Moderator
Apr 4, 2013, 4:27 PM
Post #2 of 8
(3080 views)
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Re: High oil pressur with acceleration..
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The speed of the oil pump is proportional to the rpm of the engine. The faster the pump spins the more oil that can be pumped. Since there is resistance from the bearing clearances in the engine, this will cause the oil pressure to increase with engine speed.
There is a valve inside the oil pump that is designed to regulate the oil pressure from exceeded limits. If the oil pressure gets too high, it could blow the oil filter.
How high is the pressure getting?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Apr 4, 2013, 4:29 PM)
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jrl4166
New User
Apr 4, 2013, 4:33 PM
Post #3 of 8
(3054 views)
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Re: High oil pressur with acceleration..
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Increase To 60-80. With Engine Light...
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nickwarner
Veteran
/ Moderator
Apr 4, 2013, 4:37 PM
Post #4 of 8
(3049 views)
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Re: High oil pressur with acceleration..
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What grade of oil did you put in this?
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Discretesignals
Ultimate Carjunky
/ Moderator
Apr 4, 2013, 4:39 PM
Post #5 of 8
(3049 views)
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Re: High oil pressur with acceleration..
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Which engine do you have? What code(s) numbers are being stored in the engine computer?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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jrl4166
New User
Apr 4, 2013, 6:03 PM
Post #6 of 8
(3030 views)
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Re: High oil pressur with acceleration..
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10w30. I Don' Have The Truck In Fron Of Me. Will Run It By The parts Store In The morning To Check The Computer.
(This post was edited by jrl4166 on Apr 4, 2013, 6:43 PM)
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jrl4166
New User
Apr 4, 2013, 6:19 PM
Post #7 of 8
(3024 views)
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Re: High oil pressur with acceleration..
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5.3 Liter V8
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nickwarner
Veteran
/ Moderator
Apr 6, 2013, 1:17 PM
Post #8 of 8
(2983 views)
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Re: High oil pressur with acceleration..
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I'd hook up a mechanical gauge to it and see if the readings you get jive with the gauge reading. You may have a bad sending unit, you may have a bad pressure relief valve.
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