Oil Pressure Gauge Jitters Occasionally - ZR-1 Net Registry Forums

C4CAMS · 07-24-2019

My oil pressure gauge seems to work correctly most of the time. It reads about 40psi at idle and close to 80psi while driving. But sometimes the gauge will begin to jitter and read more than 80psi. After a 10-20s it will read normally again. It seems like an electrical issue, maybe related to heat. I checked the oil pressure sensor connector, didn't see anything obvious, it's dry and seems happy. Is this a known issue?

lfalzarano · 07-24-2019

Replace the oil pressure sensor on the right front of the engine.

Sent from my iPhone using ZR-1 Net Registry

Z51JEFF · 08-05-2019

My 91 does this at Freeway speeds.

lfalzarano · 08-05-2019

It’s the sensor!

Sent from my iPhone using ZR-1 Net Registry

C4CAMS · 08-09-2019

You are correct sir. I replaced the original unit with ACDelco D1808A and the gauge has been behaving.

Ozruss90 · 08-14-2019

Quote:

Originally Posted by C4CAMS

You are correct sir. I replaced the original unit with ACDelco D1808A and the gauge has been behaving.

Am l correct that there are 2 oil switch units. 1 for a low pressure light in the dash and 1 for the pressure gauge?
My pressure gauge is reading incorrectly, usually shows low when it’s ok.
Where can l get the replacement switch from?

Cheers from down under 🇦🇺

jss06c6 · 08-20-2019

Quote:

Originally Posted by Ozruss90

Am l correct that there are 2 oil switch units. 1 for a low pressure light in the dash and 1 for the pressure gauge?
My pressure gauge is reading incorrectly, usually shows low when it’s ok.
Where can l get the replacement switch from?

Cheers from down under [emoji1037]

Jerry Downey has them.. Napa here in the States has aftermarket ones that have worked for me. I believe Jerry ships Int'l..

Sent from my SM-G950U using ZR-1 Net Registry mobile app

jss06c6 · 08-20-2019

Yes, there are 2. Oil gauge sensor is on top (easy to change), oil pressure warning light switch is on bottom (more difficult).

Sent from my SM-G950U using ZR-1 Net Registry mobile app

Ozruss90 · 08-20-2019

Quote:

Originally Posted by jss06c6

Yes, there are 2. Oil gauge sensor is on top (easy to change), oil pressure warning light switch is on bottom (more difficult).

Sent from my SM-G950U using ZR-1 Net Registry mobile app

Thanks jss06c6.
Ordered a new one with other items yesterday.

Cheers from down under
Russell

07-24-2019	#1
C4CAMS Join Date: Jul 2018 Location: Seattle Posts: 6	Oil Pressure Gauge Jitters Occasionally My oil pressure gauge seems to work correctly most of the time. It reads about 40psi at idle and close to 80psi while driving. But sometimes the gauge will begin to jitter and read more than 80psi. After a 10-20s it will read normally again. It seems like an electrical issue, maybe related to heat. I checked the oil pressure sensor connector, didn't see anything obvious, it's dry and seems happy. Is this a known issue?

07-24-2019	#2
lfalzarano Join Date: Feb 2011 Location: Clayton, North Carolina Posts: 1,133	Re: Oil Pressure Gauge Jitters Occasionally Replace the oil pressure sensor on the right front of the engine. Sent from my iPhone using ZR-1 Net Registry __________________ Lou[COLOR="Red"][B][SIZE="4"][/SIZE][/B][/COLOR]

08-05-2019	#3
Z51JEFF Join Date: Dec 2007 Location: Fremont,Ca Posts: 3,074	Re: Oil Pressure Gauge Jitters Occasionally My 91 does this at Freeway speeds.

08-05-2019	#4
lfalzarano Join Date: Feb 2011 Location: Clayton, North Carolina Posts: 1,133	Re: Oil Pressure Gauge Jitters Occasionally It’s the sensor! Sent from my iPhone using ZR-1 Net Registry __________________ Lou[COLOR="Red"][B][SIZE="4"][/SIZE][/B][/COLOR]

08-09-2019	#5
C4CAMS Join Date: Jul 2018 Location: Seattle Posts: 6	Re: Oil Pressure Gauge Jitters Occasionally - SORTED You are correct sir. I replaced the original unit with ACDelco D1808A and the gauge has been behaving.

08-20-2019	#8
jss06c6 Join Date: Aug 2015 Location: Magnolia, Texas Posts: 884	Re: Oil Pressure Gauge Jitters Occasionally Yes, there are 2. Oil gauge sensor is on top (easy to change), oil pressure warning light switch is on bottom (more difficult). Sent from my SM-G950U using ZR-1 Net Registry mobile app