1995 Chevy Tahoe Taping noise up top

1995 CHEVROLET TAHOE
140,000 MILES • V8 • 4WD • AUTOMATIC
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BEAZY
  • MEMBER
  • 1 POST
I just changed my head gasket,intake manifold gasket,and valve cover gasket.My engine is now taping up top only after I let it run for a while,when I am driving and come to a stop my oil pressure goes done as if it doesn't have enough oil. yes I did changed my oil. why am I losing oil pressure? could it be my oil pressure switch or knock sensor?
Nov 17, 2009 at 4:00 PM
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PEAR69
  • ✓Experienced Mechanic
  • 1,482 POSTS
The tapping is probably due to low oil pressure. The low oil pressure is probably due to a bad oil pump. The oil pump may have been damaged by debris from the head gasket replacement...Make sure you used the proper head gasket.
Nov 18, 2009 at 6:02 PM
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