Question about 2000 Chevrolet Astro

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4.3 oil filter blowing seals

My friend has a 2000? 4.3 that blows oil filter seals. It just started doing this.changed filter and it did it again, suspect the oil pump bypass clogged, what do you think?

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  • wilson 2 Feb 03, 2009

    Thank You, I always lube the seal before installing the filter just so it doesn't do that . ( Scunch up ) No, the problem I'm having is that the seal is being blown right out of the groove on the filter, I have not put a pressure guage on the engine yet as I will have to borrow that from one of my friends. If they don't see me copmming first. (just kidding) Thank You again, If I find the solution I will Email back . Cornbread

  • bttr Mar 31, 2009

    2000 awd astro 4.3 blowing out oil filter seal. Gage on dash did indicate that the oil pressure was high and varied for 40 - 80 Lbs. and did this at warm up idle. Is it possible that there would be a bypass of some kind that would have failed at the oil pump?

  • Anonymous Mar 17, 2014

    1996 chevy k1500 5.7 liter too much oil pressure blowing seal on oil filter



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Before you put the filter on pour oil into bottle lid and pour on the rubber seal and use your finger to rub oil on seal. it should work

Posted on Feb 03, 2009


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