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Oil pressure sending unit broken?

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Old May 19, 2010 | 09:39 PM
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From: Douglas MA
Default Oil pressure sending unit broken?
I started the car today and noticed the oil pressure was a bit higher than normal (mid-high 40s). Normal driving (1200 rpm) and the oil pressure is mid 50s. A jaunt on the highway drives the oil pressure even higher (60-70psi). A stab of the throttle moves the oil pressure instantly.

With the engine off and the key on, it showed a reading of 14psi.

Is it broken or on its way out? It's definitely not pegged at 80psi like others have reported. But, it's also definitely never acted like this.

I recently seafoamed the engine and oil. I also just changed the oil last weekend.
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Old May 19, 2010 | 10:10 PM
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You can find a bunch of stuff using search... Here's an alternate method of replacement. I tried it and it worked well...

http://forums.corvetteforum.com/c5-t...elocate-4.html
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Old May 19, 2010 | 10:12 PM
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From: Douglas MA
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Originally Posted by k0ts
You can find a bunch of stuff using search... Here's an alternate method of replacement. I tried it and it worked well...

http://forums.corvetteforum.com/c5-t...elocate-4.html
I've searched and read all that stuff already. Just looking for a fresh opinion. I want to make sure it's busted before I go tearing apart the intake manifold (ya... I'm not cutting a hole in my car).
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Old May 19, 2010 | 10:16 PM
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yeah its toast
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Old May 19, 2010 | 10:18 PM
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From: Douglas MA
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Originally Posted by pewter99
yeah its toast
And there's my fresh opinion.

DAMMIT!
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Old May 19, 2010 | 10:20 PM
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Originally Posted by webelo
And there's my fresh opinion.

DAMMIT!
I'm on my 2nd or is it 3rd. It could be worse for you. I have a Maggie so there is more labor...do you feel better now?
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Old May 19, 2010 | 10:46 PM
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Yep its gone. Mine just went out as well, but I have just bought Total Performance Engineering's Oil Pressure Relocation Kit, and it looks great and not to mention if this happens again it will only take me but 5 minutes to replace the next go around. And the kit also comes with the AC Delco (Stock) Oil Pressure Sensor which is very nice. I would defiantly recommend this to anyone replacing the sensor.

Here is a link to the Kit!

http://forums.corvetteforum.com/c5-p...ation-kit.html
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Old May 20, 2010 | 11:06 AM
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I don't think there's an issue here. Mine was @ 50psi after startup yesterday.
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Old May 20, 2010 | 11:55 AM
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Originally Posted by 8VETTE7
You answered your own question. 14PSI with the engine not running??????????????????? Last I heard the oil pressure was not like the fuel pressure which stays up for a while after the engine is shut down.
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Old May 20, 2010 | 02:19 PM
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If it's not pegged, it's not completely broken-it "MAY" be on it's way out but the numbers he's getting while running are not that far off.
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Old May 20, 2010 | 03:08 PM
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Originally Posted by dougbfresh
If it's not pegged, it's not completely broken-it "MAY" be on it's way out but the numbers he's getting while running are not that far off.
...true, but there is nothing normal about a 14 psi indication with the engine off.
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Old May 20, 2010 | 04:28 PM
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From: Douglas MA
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Ya. It's toast. It was pegged on the way home from work today. It was showing 87psi just cruising on the highway.

I'm also getting a rough idle now... is it related?
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Old May 20, 2010 | 04:39 PM
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no, you need new spark plug wires now
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Old May 20, 2010 | 04:40 PM
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From: Douglas MA
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Man... it seems like if it's not one thing, it's another with this car lately.

cha-CHING!!!
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Old May 20, 2010 | 04:50 PM
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Originally Posted by webelo
Ya. It's toast. It was pegged on the way home from work today. It was showing 87psi just cruising on the highway.

I'm also getting a rough idle now... is it related?
Rough idle is not related to the sending unit failure. You should probably check for any codes.
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Old May 20, 2010 | 09:16 PM
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Originally Posted by coupeguy2001
no, you need new spark plug wires now
Yeah I think I need new plug wires also but while im at it Im going to drop in a 6.0 with ls3 heads, intake and cam.
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