Oil pressure momentarally dropped to zero... wtf?
#1
Oil pressure momentarally dropped to zero... wtf?
I took the SS out tonight, and I let it breath out for a little bit just to get the feel of things. It was running pretty good, albiet for the little flicker and the P1637 SES code on. I pulled into a parking lot, let the car sit for a little bit, and then I fired it up to go how.
Pulling out, check guages light comes on and I see that the oil pressure is right at zero. Totally dead.
So I shut the engine off right then and there, and then I pop the hood. The oil is still in the engine, so I get back into the car and I fire it back up. Oil guage springs back to life and everything is normal.
I get home watching it like a hawk and the pressure is fine, still rises with the RPM's and everything.
When I get home, I let it sit for a little bit and I watch the oil pressure. I slight flickering of it and it sits between 30 and 40 PSI. I blipped the throttle a few times just to make sure all was still good, and then I shut it down for the night.
So why the low oil pressure? Do you think my guage just momentaraly spazzed out or do you think it could be a sign of other problems? I have never seen anything happen like that before.
Pulling out, check guages light comes on and I see that the oil pressure is right at zero. Totally dead.
So I shut the engine off right then and there, and then I pop the hood. The oil is still in the engine, so I get back into the car and I fire it back up. Oil guage springs back to life and everything is normal.
I get home watching it like a hawk and the pressure is fine, still rises with the RPM's and everything.
When I get home, I let it sit for a little bit and I watch the oil pressure. I slight flickering of it and it sits between 30 and 40 PSI. I blipped the throttle a few times just to make sure all was still good, and then I shut it down for the night.
So why the low oil pressure? Do you think my guage just momentaraly spazzed out or do you think it could be a sign of other problems? I have never seen anything happen like that before.
#3
Originally Posted by Blk97WS6
sounds like you oil pressure sending unit is going bad.
Oil pressure sending unit going bad? What would be the cause of that?
FWIW, I just went outside and tried to start it just to see what happened. 0 PSI on startup and immidietly shut it down.
This is bad.
#5
My car did that, bucked once, and the pressure was at zero. I later discovered the pressure was at 0 b/c the engine had DIED, not b/c of any failure. Replaced my IAC and she never has died again. If the pressure had gone to 0 when running you would have spun a bearing I am almost positive
#6
Originally Posted by BLKWS.6
My car did that, bucked once, and the pressure was at zero. I later discovered the pressure was at 0 b/c the engine had DIED, not b/c of any failure. Replaced my IAC and she never has died again. If the pressure had gone to 0 when running you would have spun a bearing I am almost positive
Whats IAC?
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#9
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Originally Posted by LS1vazquez
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Oil pressure sending unit going bad? What would be the cause of that?
FWIW, I just went outside and tried to start it just to see what happened. 0 PSI on startup and immidietly shut it down.
This is bad.
Oil pressure sending unit going bad? What would be the cause of that?
FWIW, I just went outside and tried to start it just to see what happened. 0 PSI on startup and immidietly shut it down.
This is bad.
#11
Originally Posted by BLKWS.6
How long did it run and did you hear ANY odd tapping? If you heard no odd tapping and it ran for over 5 seconds its the sending unit im pretty sure
I'm going to go ahead and try to fire it up again this morning. We'll see what happens.
#12
Okay, I just tried to fire it up again. Twice.
Oil pressure is sitting at zero.
Each time I shut down the engine within a few seconds.
Great, so now what? It just wouldn't make sense for the car to get me home all right, and then suddenly have zero oil pressure.
I'd like to think that it's just an electrical issue, but I don't want to actually bank on that too much and risk tossing the motor.
Oil pressure is sitting at zero.
Each time I shut down the engine within a few seconds.
Great, so now what? It just wouldn't make sense for the car to get me home all right, and then suddenly have zero oil pressure.
I'd like to think that it's just an electrical issue, but I don't want to actually bank on that too much and risk tossing the motor.
#14
Originally Posted by BLKWS.6
If your pump was dead, it woulda spun a bearing on crank up on the 2nd time b/c all the oil is in the pan after last night. Bum a ride, get a sending unit, replace it, then try it.
Details on sending unit? Specifics? Location? How to change? Where can I buy it? Etc etc?
#15
Also, any obvious way to tell if a bearing would've spun? ANy appreciable RPM change on startup? Tapping or rattling noises?
The engine for the most part acted and sounded normal.
The engine for the most part acted and sounded normal.
#16
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mine did this, sending unit died. I would suggest that you change the sending unit and have the oil pump looked at. There were issues with the pumps as mine on my 01 died and caused critical engine failure.
#17
before you start taking it a part.
1.take the valve covers off, enough to look inside.start engine and look if you got any oil coming out.
2.check to see if you pick up any new codes
3.if you got oil coming out then replace the oil pressure switch
1.take the valve covers off, enough to look inside.start engine and look if you got any oil coming out.
2.check to see if you pick up any new codes
3.if you got oil coming out then replace the oil pressure switch