PDA

View Full Version : Oil Pressure Gauge Jitters Occasionally

C4CAMS
07-24-2019, 01:59 PM
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, 03:44 PM
Replace the oil pressure sensor on the right front of the engine.


Sent from my iPhone using ZR-1 Net Registry (http://r.tapatalk.com/byo?rid=90383)
Z51JEFF
08-05-2019, 11:07 AM
My 91 does this at Freeway speeds.
lfalzarano
08-05-2019, 12:03 PM
It’s the sensor!


Sent from my iPhone using ZR-1 Net Registry (http://r.tapatalk.com/byo?rid=90383)
C4CAMS
08-09-2019, 01:18 PM
You are correct sir. I replaced the original unit with ACDelco D1808A and the gauge has been behaving.
Ozruss90
08-14-2019, 07:01 PM
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, 02:07 PM
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 (http://r.tapatalk.com/byo?rid=90383)
jss06c6
08-20-2019, 02:09 PM
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 (http://r.tapatalk.com/byo?rid=90383)
Ozruss90
08-20-2019, 05:45 PM
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 (http://r.tapatalk.com/byo?rid=90383)
Thanks jss06c6.
Ordered a new one with other items yesterday.

Cheers from down under
Russell