Oil pressure sensor?
Thread Starter
Race Director
Joined: Jun 2004
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From: WI
Oil pressure sensor?
When I turn my car to on but do not start, my car reads 4 PSI of oil pressure on the dash gauge. Is my oil pressure sensor kaput? I've checked some parts places and they seem to only list the oil pressure switch. Any ideas?
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Joined: Dec 2000
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From: SE NY
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Hmmm, I've never noticed the oil pressure before starting the engine in my '88.
There are indeed two units on the stalk behind the intake base:
-the oil pressure sw, for power to the fuel pump
-the oil pressure sender, for oil pressure to the ECM & gauges
Contemporary Corvette (link on my site) lists "P/N30344 ;84-'88 Oil Pressure Sensor - 1 blade - $37.
There are indeed two units on the stalk behind the intake base:
-the oil pressure sw, for power to the fuel pump
-the oil pressure sender, for oil pressure to the ECM & gauges
Contemporary Corvette (link on my site) lists "P/N30344 ;84-'88 Oil Pressure Sensor - 1 blade - $37.
Team Owner
Joined: Dec 2000
Posts: 90,675
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From: SE NY
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OK, I just checked it out:
-1psi just after I turn the ignition On
-2-3psi after a few seconds with engine still off
I won't replace my oil pressure sensor so long as it appears to read in the usual range with the engine running.
-1psi just after I turn the ignition On
-2-3psi after a few seconds with engine still off
I won't replace my oil pressure sensor so long as it appears to read in the usual range with the engine running.
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Originally Posted by 65Z01
OK, I just checked it out:
-1psi just after I turn the ignition On
-2-3psi after a few seconds with engine still off
I won't replace my oil pressure sensor so long as it appears to read in the usual range with the engine running.
-1psi just after I turn the ignition On
-2-3psi after a few seconds with engine still off
I won't replace my oil pressure sensor so long as it appears to read in the usual range with the engine running.
I see this all the time.
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From: Athens AL
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The Switch is one small part with prongs, the Sending unit is what actually sends the pressure reading. They are side by side on the back of the intake manifold behind the distributor.
Its likely the connection to the sender is going out, they do that as often as the sending unit itself goes out. Heat eats the wiring.
Its likely the connection to the sender is going out, they do that as often as the sending unit itself goes out. Heat eats the wiring.
Thread Starter
Race Director
Joined: Jun 2004
Posts: 13,960
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From: WI
The metal wire inside the plastic will break down from heat?
Oil Pressure Sender/Switch.1 Ohms @ 0 PSI, 43 Ohms @ 30 PSI, 86 Ohms @ 60 PSI
I'll check it. Mine is never as low as 1 PSI though, usually it's at 4 PSI sometimes as high as 6 PSI, cold.
Thank you for the info!
Oil Pressure Sender/Switch.1 Ohms @ 0 PSI, 43 Ohms @ 30 PSI, 86 Ohms @ 60 PSI
I'll check it. Mine is never as low as 1 PSI though, usually it's at 4 PSI sometimes as high as 6 PSI, cold.
Thank you for the info!
