No oil pressure
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Freshman User
Joined: Sep 2006
Posts: 25
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From: Duluth MN
No oil pressure
76 Ranchero 351M 77K
Just installed my new gauge cluster, and noticed I have no oil pressure. I have about 5 psi when I start it up, and when I rev it, it goes to about 25 then drops to 10. But when I am driving, it is at 0 psi. Any help?
Just installed my new gauge cluster, and noticed I have no oil pressure. I have about 5 psi when I start it up, and when I rev it, it goes to about 25 then drops to 10. But when I am driving, it is at 0 psi. Any help?
Senior User
Joined: Jul 2006
Posts: 462
Likes: 0
if you are using a after market you may have air in the tubing. i would bleed it from the gage and see if that helps some. i know i have bleed mine several times but every time i shut the truck off i get air back in the line. if thats does not fix the problem, i would look into an over haul. low oil pressure leads to spon bearing. i had like 5 or 10 psi on my old 400 and a few days later the pump locked on me. broke the engine down and every bearing was wiped out.
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