• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

Oil Pressure Gauge Flutter


Tally99

New Member
Joined
May 31, 2021
Messages
22
Reaction score
8
Points
3
Location
Minnesota
Vehicle Year
2000
Make / Model
Ford Ranger
Transmission
Automatic
Hello all,

I've noticed that when I exit a highway after driving for a while with a good bit of cargo in the bed, my oil pressure gauge flutters once I come to a stop, such as at a stop sign or intersection. It returns to the normal position once I hit the gas, and get the rpms around 1500. Also, the gauge reads normal after shutting down the engine and re-starting it, even in low rpms.

Has anyone else had this issue? It happens pretty much only during the conditions mentioned above, I figure it could just be the higher oil pressure at higher (2500~3000) rpm causing something in the pressure sending unit to stick, since it goes away once the pressure has been down to 0, and I highly doubt I've got an oil pressure issue, since the valvetrain isn't making any loud tapping noises, just the quiet clicking I figure is normal for an OHV engine. (My las car was a camry, with a DOHC engine).
 


RonD

Official TRS AI
TRS Technical Advisor
Joined
Jun 2, 2012
Messages
25,363
Reaction score
8,369
Points
113
Location
canada
Vehicle Year
1994
Make / Model
Ford
Transmission
Manual
I would replace the oil pressure switch, it's an on/off switch, turns on above 5psi, off below 5psi
The gauge is either on or off any changes in needle position is voltage related not oil pressure related
Could be switch is just getting old

Oil switch is behind passenger side head on the block, so a bit of a pain to get at, but not that bad
Picture here of the REAR of 3.0l OHV engine: https://www.ranger-forums.com/attachments/2-9l-3-0l-v6-tech-32/62642d1377655187-oil-pressure-gauge-reading-high-dscn0413.jpg

Oil switch is on the right with the white connector
 

Angie

Well-Known Member
V8 Engine Swap
Joined
May 18, 2008
Messages
1,510
Reaction score
368
Points
83
Location
Vancouver area BC Canada
Vehicle Year
92 & 83 project
Make / Model
Ford
Engine Type
V8
Engine Size
4.0L 302
Transmission
Automatic
Keep this in mind.... if you were to replace the gauge with a mechanical one, when RPM drops so will the readings of the oil pressure gauge. Low RPM = lower pressure.
 

Sponsored Ad


Sponsored Ad

Staff online

Members online

Today's birthdays

Member & Vendor Upgrades

For a small yearly donation, you can support this forum and receive a 'Supporting Member' banner, or become a 'Supporting Vendor' and promote your products here. Click the banner to find out how.

Truck of The Month


Shran
April Truck of The Month

Recently Featured

Want to see your truck here? Share your photos and details in the forum.

Follow TRS On Instagram

TRS Events

25th Anniversary Sponsors

Check Out The TRS Store


Sponsored Ad


Sponsored Ad

Sponsored Ad


Amazon Deals

Top