Heavy noise in engine

1992 NISSAN PATHFINDER
2,080,303 MILES • 2.4L • 4 CYL • 4WD • MANUAL
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SHAFAKOJ
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  • 1 POST
When I was on the way home I heard a light sound in the engine valves. I inspected the oil was almost empty, I filled it with oil 20-50 castrol oil and 10-30 oil i do not know the brand. Then I heard a heavy sound of the valves. when I pressed the gas pedal suddenly, there is no torque on engine and high sound if i pressed the pedal slowly there is no sound. i checked the valve clearance and distributor it is doing well but there is no ignition in three and four cylinder. When i pull the wire of spark plug on cylinder number four the engine still running and the three same thing . the engine is z24
Sep 8, 2017 at 3:22 AM
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STRAILER
  • ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
It sounds like you blew the head gasket between the two cylinders, but to be sure lets do a compression test to see if the reading is low but the same.

Here is a guide to help you:

https://www.2carpros.com/articles/how-to-test-engine-compression

If you don't have a gauge you can rent one for free from the auto parts store.

Please run this test and get back to us so we can keep helping you.

Cheers, Ken
Sep 8, 2017 at 11:27 AM
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