oil presure is to high

1988 TOYOTA PICKUP
20,000 MILES
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SKILSAWC
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  • 1 POST
oil presure to high toyota 88 pick-up truck
keeps blowing oil out of the top of moter
Sep 2, 2011 at 3:37 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Check the oil pressure with a mechanical gauge-could be the oil pressure relief valve is stucked closed not opening
Sep 2, 2011 at 4:03 AM
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MMPRINCE4000
  • ✓Experienced Mechanic
  • 8,548 POSTS
Pressure relief valve is a spring in oil pump, If mechanical pressure is verified, replace oil pump.
Sep 2, 2011 at 5:35 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,814 POSTS
Should not be oil pressure problem. Engine is experiencing excessive blowby. Check the PCV and crankcase ventilation systm.

You could have an aging engine that has worn piston rings.
Sep 2, 2011 at 5:41 AM
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