Oil pressure sensor ohms?

The place to talk Slicks. All we ask is that discussion has something to do with slicks...

Moderators: Kid, Casey 65

Post Reply
User avatar
redstone65
Posts: 139
Joined: August 30, 2017, 9:14 pm
Location: Birmingham, AL
United States of America

Oil pressure sensor ohms?

Post by redstone65 »

Is there a scale somewhere to show what range the oil pressure sender is supposed to put out? I’d like to check it to make sure it’s actually working and get an idea what idle pressure is running.
Dave

1965 F-100 Flareside (240 6-cyl)
3 speed. Former military truck.
User avatar
unibody madness
Posts: 2140
Joined: December 4, 2008, 4:33 pm
Location: Paradise,CALIFORNIA 95969
United States of America

Re: Oil pressure sensor ohms?

Post by unibody madness »

not sure about the ohms I bought an oil driven gauge to check my engines, your gauge is also adjustable if its off but it is no fun trying to calibrate it
Turk build thread at:
viewtopic.php?f=32&t=18944

It does not matter what you think, it only matters what you do about it!
BobbyFord
Posts: 289
Joined: December 12, 2007, 8:58 pm
Location: So Cal

Re: Oil pressure sensor ohms?

Post by BobbyFord »

The oil pressure sender is just a light switch that grounds at low pressure.
The only test in the factory shop manual for a oil light type sender is whether or not the light goes out when the engine is started.
You probably want something like this---> https://www.summitracing.com/parts/smp-ct25/overview/
mongrot
Posts: 54
Joined: June 5, 2012, 11:03 pm
Location: Saskatchewan
Canada

Re: Oil pressure sensor ohms?

Post by mongrot »

I would throw a master gauge on it and verify the pressure is good if it's a concern or install a proper pressure gauge instead of relying on a dummy light. If the light comes on, it's usually too late anyhow. To answer your question though, I think the range is about 10-75 ohms, can't remember if it's10 with engine running or 75 though, it's been awhile. Maybe someone else will know.
-'61 F100 short box flareside (classic street rod) 223, 4spd
-'62 F100 long box unibody (murdered out) 460, C6
-'66 F100 long box flareside (original) 240, 4spd
-'64 F100 long box styleside (pro-street) 307 GM, 700R4
-'64 F100 long box styleside (daily driver) 223, 3spd
-'65 F100 long box styleside (original) 240, 4spd
-'66 M100 long box styleside (sold) 240, 4spd
-'64 F250 long wrongbox styleside (sold) 292, 4spd
User avatar
redstone65
Posts: 139
Joined: August 30, 2017, 9:14 pm
Location: Birmingham, AL
United States of America

Re: Oil pressure sensor ohms?

Post by redstone65 »

Awesome. Thanks guys.
Dave

1965 F-100 Flareside (240 6-cyl)
3 speed. Former military truck.
User avatar
unibody madness
Posts: 2140
Joined: December 4, 2008, 4:33 pm
Location: Paradise,CALIFORNIA 95969
United States of America

Re: Oil pressure sensor ohms?

Post by unibody madness »

Since the OP wanted a range I thought he had a gauge, not an idiot lite. I have both in my truck since I really don't trust either
Turk build thread at:
viewtopic.php?f=32&t=18944

It does not matter what you think, it only matters what you do about it!
Post Reply