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Oil pressure

Tiny
MARTYDGRISSOM
  • MEMBER
  • NISSAN 300ZX
I have a 1990 nissan 300zx
I recently bought it. Lately I have notice when I take off the oil pressure drops down a bit. Could someone explain what could cause this problem?
Sunday, April 16th, 2006 AT 10:59 AM

4 Replies

Tiny
LOSONE
  • MECHANIC
  • 1,616 POSTS
That response measn either you are low on oil, it needs changing, the sending unit is bad or a worn oil pump.

The last you don't want to hear, an engine with some bad beariing causing a loss of oil pressure.

How many miles on the engine?
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Sunday, April 16th, 2006 AT 1:00 PM
Tiny
MARTYDGRISSOM
  • MEMBER
  • 3 POSTS
There is about 110,000 miles give or take a few. I thought it might need a oil change. What kind of bearings are they.
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Monday, April 17th, 2006 AT 9:30 AM
Tiny
LOSONE
  • MECHANIC
  • 1,616 POSTS
Connecting rod and cam bearing you will hear first. TRY the oil change with Castrol High mileage 10W30 (green bottle) and a Honda orig filter.
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Monday, April 17th, 2006 AT 3:49 PM
Tiny
MARTYDGRISSOM
  • MEMBER
  • 3 POSTS
Thank you for your info. I will try the oil change. I'll keep you posted. Again, thank you
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Tuesday, April 18th, 2006 AT 9:33 PM

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