loosing oil pressure???

Reply Subscribe

Thread Tools

Search this Thread

Nov 14, 2007 | 11:51 PM

alconk

Thread Starter

TECH Apprentice

iTrader: (1)

Joined: Dec 2003

Posts: 372

Likes: 1

loosing oil pressure???

I have 160k miles on my 94 Z and am loosing oil pressure slowly. I have lost 10 pounds over the last month.... At highway speeds it used to be about 51 psi and now it's only 40 psi and that's hot. My idle pres. has not changed, it's still at 18 psi. I had Castrol (German) 0w30 but I'm gonna change to 10w40 with some Lucas treatment. Any ideas??

Nov 16, 2007 | 12:48 AM

94 F-body

TECH Apprentice

iTrader: (1)

Joined: Aug 2006

Posts: 331

Likes: 0

From: Eating rice, Cal

you might replace the oil pressure sensor and see if it changes, mine was like $35. it could be the gauge or oil pump but that is a long shot. if the oil is old than start there.

Nov 16, 2007 | 01:11 AM

alconk

Thread Starter

TECH Apprentice

iTrader: (1)

Joined: Dec 2003

Posts: 372

Likes: 1

No, I'm running a good mechanical gauge but good thought...I think the bearings might be going UGH.

Nov 16, 2007 | 01:21 AM

jay_rich

11 Second Club

iTrader: (8)

Joined: Mar 2007

Posts: 569

Likes: 3

From: Windsor, Ontario Canada

I have a mechanical and mine always sits at like 7 psi idle when warm?? Cruising like 20ish
I am gonna swap in a autometer to make sure tho.(currently a cheaper one bc it fit in my stock 1 1/2 location)

Jay

Nov 16, 2007 | 01:55 AM

urbanhunter44

12 Second Club

iTrader: (1)

Joined: Jan 2005

Posts: 869

Likes: 0

From: Bay Area, CA

mine has never been great. just above the red line at idle, never more than 35-40 on the gas. I bought it at 52k like that, and it's the same now at 70,5xx.