Oil psi dropping

**zooguy** · 06-25-2018, 04:32 PM

Well I took the car for a very short drive today. I found there was a leaky valve cover gasket and wanted to make sure that I repaired it. I noticed when I would brake the oil pressure would drop drastically. I do have the appropriate amount of oil in the motor so I know I'm not low on oil.

so do i pull the motor out completely is is there some tricky way i can pull stock pan off with the factory k member in the car?

i tack welded the oil pick up tube on .... but that wasnt enough .... it fell off

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***popo8*** · 06-26-2018, 11:03 PM

So it was the oil pick up tube.

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**zooguy** · 06-26-2018, 11:06 PM

I haven't fixed it yet ... that was a pic from when I was building the motor.

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**Ardent_Z28** · 06-28-2018, 08:53 PM

My oil pressure drops drastically when I brake hard, and about half when moderately braking for a red light or stop sign. I know also that my oil level is full, but it still happens and my check gauges light will come on during a hard braking stop. The light goes off and oil pressure picks back up when the inertia settles. I only have the oil pressure gauge in the instrument cluster to go by. I have a Melling oil pump in my car with 12K miles so I'm sure it's just inertia in my car.

***popo8*** · 06-30-2018, 09:32 AM

Originally Posted by Ardent_Z28

My oil pressure drops drastically when I brake hard, and about half when moderately braking for a red light or stop sign. I know also that my oil level is full, but it still happens and my check gauges light will come on during a hard braking stop. The light goes off and oil pressure picks back up when the inertia settles. I only have the oil pressure gauge in the instrument cluster to go by. I have a Melling oil pump in my car with 12K miles so I'm sure it's just inertia in my car.

I would check ur pick up tube as well @Ardent_Z28 . It shouldnt move that much if at all from inertia.

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**zooguy** · 06-28-2018, 09:13 PM

If you jack up the front of your car or drive up onto ramps to get underneath it and you bang on the oil pan you might hear something rattling inside of it I did it with my car and found out that my oil pickup tube fell off

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**Ardent_Z28** · 06-28-2018, 09:30 PM

I'll try that ^^^^^ Now I'm curious to find out. I've got the factory K-member and I don't see any way to pull the pan without unbolting the mounts and raising the engine. I've gotten pulling the engine from the bottom down to a science cuz I've done it several times.

**BALLSS** · 06-29-2018, 11:07 AM

oil pressure drop on braking or turns typically means the oil pick-up came off as the OP discovered.

Bore scopes are pretty cheap now and using one through the oil drain hole or oil level sensor hole would show if it fell off if you can't determine if it fell off by hitting pan with a mallet. Draining the oil though should help hearing the hammer hit method though

***popo8*** · 06-30-2018, 09:33 AM

Originally Posted by BALLSS

oil pressure drop on braking or turns typically means the oil pick-up came off as the OP discovered.

Bore scopes are pretty cheap now and using one through the oil drain hole or oil level sensor hole would show if it fell off if you can't determine if it fell off by hitting pan with a mallet. Draining the oil though should help hearing the hammer hit method though

When my camaro dropped its, we drained the oil and hit the pan with a rubber hammer... first whack u heard it clanging around in there.

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**Ardent_Z28** · 07-01-2018, 07:57 PM

Originally Posted by popo8

When my camaro dropped its, we drained the oil and hit the pan with a rubber hammer... first whack u heard it clanging around in there.

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This is on my agenda, as is the remedy Tubby Z28 used. I dunno about the route the OP went removing the pan...I've got some big hands.