Question about 2003 Toyota Sequoia

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Oil pressure dropd to about 25% while at idle

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Oil pressure always drops at idle

Posted on Feb 04, 2010

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Oil pressure on my 1991 Nissan sometimes drops to about 5 psi at idle when at operating temp. Other times it will drop to a more normal 25-30 psi. Is there is a high pressure relief valve sticking?


5 psi then 25 -30
what are these readings from ..an after market oil pressure gauge ?
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what make of nissan
how many miles/kms on the clock

would first replace oil pressure sender
oil pressure relieve valve on the oil pump sticking is a possible
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What should oil pressure be at idle?


Depending on age of engine, temp, and type of oil, normal idle pressure is 25 - 35 psi.

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Does anybody know what the oil pressure specs for the 2006 crown victoria lx 4.6L at idle and at normal operating temp? Mine is reading between 15 and 25 psi. Has 149,0000 on it.


15 seems low. Ford gives a spec of 40-70 psi with the engine speed @ 2500 rpm engine hot. Most cars I see are around the 25 psi @ idle. If your idle is lower than it should be it will make your pressure lower. This should be a direct reading on a good mechnical engine oil pressure gauge.

May 22, 2015 | 2006 Ford Crown Victoria

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Oil pressure gauge reading


Normal is really any place in the middle of the gauge.
Depending on the age and condition of the engine, and the temp of the oil, oil pressure at idle should be at least 25-35 psi and at cruising speed between 40 and 60 psi.

May 12, 2013 | 1991 Chevrolet Caprice

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How can I tell if my oil pump is bad on my 2004 GMC Yukon


You hook up a mechanical oil pressure gauge at the oil pressure sending unit oil port and test the pressure, it should be about 25 PSI hot idle and about 50PSI at 2-3,000 RPM.

Aug 29, 2012 | Cars & Trucks

1 Answer

1996 Ford 300 six cylinder loses oil pressure when engine warms up


first you will have to say what the oil pressure is cold, idle and 2000 rpms and then hot idle and 2000 rpms before a decision to advise about a rebuild can be made
there are many reasons oil pressure can drop and not all require a rebuild

May 26, 2017 | Ford F-150 Cars & Trucks

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Operating oil pressure for 14.0l detroit dieselseries 60


If the engine is at normal operating temperature 25 pounds is fine at idle. Also have you tested the oil pressure with a mechanical gauge, if not you should do so.

Jun 10, 2012 | Cars & Trucks

1 Answer

2001 camaro 3800 eng. when eng is cold oil pressure is high after warms up oil pressure drop very low at idle. why??


When the engine and oil are cold it will show a high pressure because of the viscosity of the oil. When it warms up the oil is thinner. If it doesn't drop below 20-25 psi at warm idle I wouldn't worry about it as that is normal.

Feb 07, 2011 | 2001 Chevrolet Camaro

2 Answers

When stopped at lights oil light flashes.. My oil level is fine. What could it be?


this is a common sign of a bad oil pressure sender, but could also be caused by low oil pressure, a sender is cheap,but it"s always smart to do a pressure test first with a mechanical gauge,you can obtain a mechanical gauge from most automotive parts stores. then you"ll have to locate and remove the oil pressure sender and install the gauge you bought. make your test at warm idle you should have at least 25 psi below that you may very possible have worn engine bearings making it impossible for the engine to have any better oil pressure at idle. if you have 25 or greater psi of pressure at idle replace your oil sender and you"ll be back on the road

Dec 30, 2010 | Ford Taurus Cars & Trucks

1 Answer

Oil light comes on at idle ? just changed oil but still happens?


You should check your oil pressure with a gauge, spec is 4 psi at idle and 25-80 at 3000 rpm.

If pressure is ok then it is the pressure sending unit if not the oil pick up screen may be plugged or the engine may have too much wear or the oil pump may be worn.

Nov 02, 2009 | 2001 Dodge Neon

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