Ever since Clevy told me my oil filter was plugged in these pics, I've been thinking....
Engine Guard II Filter
Bought truck with 160k on it. Engine was fairly sludged up from inoperable PCV system due to a clog in throttle body. That was all fixed a few days after I bought the truck. This old 350 has gotten multiple doses of Kreen and MMO.
Sometimes my oil pressure gauge on the dash drops REAL suddently from 30psi (which is my normal reading when fully warmed up) to 3-5psi. It will stay there for a few seconds, and then come SKYROCKETING back. The gauge FLIES from 3-5 psi to like 50-60psi (it's a sudden, quick rise on the gauge), and the gauge swings back and forth from 15-50psi for a few times until it settles around 30psi.
Is this what a gauge normally does when the oil pressure sending unit is going out or am I experiencing a clogged oil filter (OP drops to near zero) and engine oil bypassing the filter (when internal bypass valve opens in engine, OP quickly raises)?
I have tore apart my last few oil filters when I did an oil change, and they were fairly dirty (I'm stilling getting gunk out of the engine, with the help of Marvel's Mystery Oil) from the previous owner. I'm not sure if they were clogged or not though...
So, I don't know if the gunk/sludge is screwing with my oil pressure sending unit or if the filters are clogging on me and I really am loosing oil pressure temporarily while I'm driving. Sometimes the oil pressure gauge reads near zero for a few seconds, and sometimes it will stay there for a minute.
It seems like if the filter was clogging up, the OP would slowly drop. But on my gauge, the bottom just drops out of it. So, that's why I think it's the sending unit.
Thank you for your input in advance.
Engine Guard II Filter
Bought truck with 160k on it. Engine was fairly sludged up from inoperable PCV system due to a clog in throttle body. That was all fixed a few days after I bought the truck. This old 350 has gotten multiple doses of Kreen and MMO.
Sometimes my oil pressure gauge on the dash drops REAL suddently from 30psi (which is my normal reading when fully warmed up) to 3-5psi. It will stay there for a few seconds, and then come SKYROCKETING back. The gauge FLIES from 3-5 psi to like 50-60psi (it's a sudden, quick rise on the gauge), and the gauge swings back and forth from 15-50psi for a few times until it settles around 30psi.
Is this what a gauge normally does when the oil pressure sending unit is going out or am I experiencing a clogged oil filter (OP drops to near zero) and engine oil bypassing the filter (when internal bypass valve opens in engine, OP quickly raises)?
I have tore apart my last few oil filters when I did an oil change, and they were fairly dirty (I'm stilling getting gunk out of the engine, with the help of Marvel's Mystery Oil) from the previous owner. I'm not sure if they were clogged or not though...
So, I don't know if the gunk/sludge is screwing with my oil pressure sending unit or if the filters are clogging on me and I really am loosing oil pressure temporarily while I'm driving. Sometimes the oil pressure gauge reads near zero for a few seconds, and sometimes it will stay there for a minute.
It seems like if the filter was clogging up, the OP would slowly drop. But on my gauge, the bottom just drops out of it. So, that's why I think it's the sending unit.
Thank you for your input in advance.