Bad oil sensor or jammed relief spring?
05-30-2005, 06:53 PM
#1
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Bad oil sensor or jammed relief spring? This weekend I installed the LS6 valley cover and intake on my car. Car idles fine but now the oil pressure hovers midway between the red zone and the first tick. My guess is that the spring got jammed with some crap. I slowly took it up to 2000 rpms and the needle didn't budge. Wouldn't a bad sensor show a code?
Any suggestions?
Also, I have a dealer within 3 miles and a good speed shop within 6. If I keep the rpms down how risky is it to drive with the pressure that low?
Thanks in advance.
Any suggestions?
Also, I have a dealer within 3 miles and a good speed shop within 6. If I keep the rpms down how risky is it to drive with the pressure that low?
Thanks in advance.
05-30-2005, 11:28 PM
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Which spring are you referring to? The oil pump pressure spring?
I believe if that spring sticks, the pressure will build. The spring regulates
the amount of pressure, by allowing the oil pressure to push against a valve.
The harder the spring, the higher the pressure.
Did you forget to install some oil restrictors on the top end of the motor?
I don't see the relation between the oil pump and valley pan otherwise?
Just a thought, I'm not familiar with the LSx oiling system.
I believe if that spring sticks, the pressure will build. The spring regulates
the amount of pressure, by allowing the oil pressure to push against a valve.
The harder the spring, the higher the pressure.
Did you forget to install some oil restrictors on the top end of the motor?
I don't see the relation between the oil pump and valley pan otherwise?
Just a thought, I'm not familiar with the LSx oiling system.
05-31-2005, 05:23 AM
#4
Pressure Relief Valve. Hmmm? Gee, I wonder if that might be used to relieve pressure NOT build pressure. I'll bet the pump builds up pressure and the pressure relief valve reduces pressure. Maybe that's why they call it the pressure RELIEF valve. Then again, maybe not
05-31-2005, 06:32 AM
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Originally Posted by felton316
It is possible that you cracked the oil sending unit while removing/installing the intake manifold.
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05-31-2005, 07:51 AM
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Pressure Relief Valve. Hmmm? Gee, I wonder if that might be used to relieve pressure NOT build pressure. I'll bet the pump builds up pressure and the pressure relief valve reduces pressure. Maybe that's why they call it the pressure RELIEF valve.
Read his question again about the spring, then read me post again, very carefully.
I believe if that spring sticks, the pressure will build.
build if the valve doesn't move to relieve pressure.
Here's a pic to show a valve and spring in a Gen 1 SB. Different design, same concept:
05-31-2005, 08:51 AM
#9
Originally Posted by Adrenaline_Z
I'm basically stating it cannot be a stuck spring because the pressure would build if the valve doesn't move to relieve pressure.
In LS1 applications, the pressure relief valve sticks open, not closed. This allows atleast some oil to bypass circulating through the motor.
