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1994 GMC 1500 Pickup Question: why my oil pressure is so high it's blowing oil out of everywhere?

 

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infamous007, Metairie, LA, March 10, 2013, 05:11
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New oil pump, screen and oil pressure switch. changes oil and filter already too, still have same problem.

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    ziptie12 March 10, 2013, 18:09
     Master

    Please describe 'everywhere'.........and check the PCV SYSTEM.

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    infamous007, March 10, 2013, 18:41
     Rookie

    coming out of dip tube, filler cap on valve cover, and past the oil filter.

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    pushrod March 10, 2013, 18:24
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    How much pressure does t have? Can be checked! Agree with ziptie.

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    infamous007, March 10, 2013, 18:42
     Rookie

    80 psi

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    pushrod, March 10, 2013, 20:54
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     Master

    There is not but one thing it can be IF you have that much pressure and that is is the pump! 4.3-5.0-5.7 engines. Did you use a test gauge screwed into the sending unit port? Sounds more like blow by if oil is coming out of the dip stick tube, no oil pressure there. The engine cant be breathing, no fresh air, breather, and no pcv action. How much oil is in the engine??? I hope you find the problem.

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