oil Filter gskt blows out

Hi I have a 2002 Malibu with a 3.1 v6 eng the oil filter Gasket blows out when i start the car! Oil was changed 3 weeks ago. I put a new filter on it and 2 quarts of oil started eng and it blew gasket out on new filter with in a min. any thougts

Sounds like you have the wrong filter. If the gasket is in the wrong place inner vs. outer on your filter it will leak. Can you get the filter nice and tight using your hands?

Well asuming you are using AC pf-47 or equivalent and you are tightening the filter 3/4 to 1 turn past initial contact then it sounds like your oil pressure bypass relief valve is not working. I don't that whether the relief valve is built into the correct filter or not. If it isn't then you need to replace it whether it's in the oil pump or on the filter mounting pad. Sorry I'm not really sure where the relif valve is located on this engine.

Did you check to make sure that the old filter gasket was not present on the block mating surface. Have seen this happen.

Just a thought

I removed the oil filter bypass check valve and put a new filter on and it still blows out the filter gasket! i think mybe its the spring in the oil pump?

I removed the oil filter bypass check valve and put a new filter on and it still blows out the filter gasket! i think mybe its the spring in the oil pump?

What do you mean you removed the bypass valve? you took it off and didn't put in a replacement? I think the valve has to be there to bypass. Otherwise you are back to square one with no bypass. Try putting a replacement bypass vale in.

Other than that maybe it's possible that oil filter mounting rod is bent just enough that the filter want seat squarely? I'm pretty sure the problem has to be at the bypass or the oil filter mount. It's blowing past the oil filter when the engine is running cold and even at low rpm right?

The bypass is on the outlet side of the filter with it out it should build less pressure! I ordered a new one to put in! but it is not the problem! The nipple that the screws on to is not bent the filter is mounting evenly. I think the pump has some kind of pressure valve in it? I was wondering if anyone had this problem before?

The bypass is on the outlet side of the filter with it out it should build less pressure! I ordered a new one to put in! but it is not the problem! The nipple that the screws on to is not bent the filter is mounting evenly. I think the pump has some kind of pressure valve in it? I was wondering if anyone had this problem before?

No, I'm pretty sure the nipple is the filter outlet, not the mounting base area where the filter seats and the bypass is located. It's not necessarily the case that if take the bypass off that it would bypass the filter. I think when the pressure gets too high the bypass actually closes off flow to the filter. So if I'm correct, taking the bypass out pout you back to square one with no bypass.

The reason I say the problem probably isn't in your oil pump pressure spring, which I'm sure it has one, is because the oil pump pressure is basically irrelevant to the oil filter problem. The pressure gets too high and needs to be bypassed when the oil is cold even in a properly working oil pump. If your oil filter bypass was working, even if your oil pump was running too high of pressure it would be bypassed at the fliter anyway and you wouldn't be blowing the oil filter.

are you using the acdelco pf-47 thats what it takes? if your using fram i would'nt give a dime for a boat load of those fram filters i see them rust a hole threw one.. made by honneywell.

Better put a mechanical oil pressure gauge on and see what have. As stated in another post the bypass you changed has nothing to do with system oil pressure. Most GM the oil pressure relief valve in part of the oil pump, not easy to get to.