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2003 Chevrolet Silverado 2500 HD Question: Gradual psi oil drop from 40/0.Oil lvl gd,no warning lights.

 

Question

1danoz, Corona, CA, December 11, 2012, 12:33
 Rookie

Just recently I've noticed oil psi drp aft driving 40mi.Turning the engine off & restart brings pressure back up but will drp aft 10mi. Engine runs smooth @ idle and when given gas. No warning lights come on.

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  • Answer #1

    Greg's Orange Auto (12205 Answers) , Orange, CA - (714) 361-9386
    globalhelper December 11, 2012, 12:40
     Master

    do a manual oil pressure test and if good repl oil sending unit

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  • Answer #2

    Tomiko December 11, 2012, 16:04
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     Journeyman

    Yikes! maybe your sensor is bad or your oil pump is losing pressure

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  • Answer #3

    your.mechanic December 11, 2012, 18:42
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     Master

    You need to check your oil pressure with a gauge...good oil pressure = bad sensor; bad oil pressure = possible oil pump issue...

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  • Answer #4

    ziptie12 December 12, 2012, 14:36
     Master

    Pick-up screen in sump is possibly clogged. R&R oil pan & clean or replace.

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