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#1288282 - 11/20/08 07:52 AM Anti drain back valve failure
dirtydave Offline


Registered: 09/18/08
Posts: 17
Loc: michigan
A few weeks ago I changed my oil on my 99 Chevy Astro with 98000 miles. I start engine and everything is fine. Than a couple nights later I go to leave from my inlaws and the outside temp is 35 deg. and I hear this knocking on startup. My oil pressure is good and the knock goes away after 10-20 sec. The next couple days same thing happens. I'am thinking its the wrist pins or something else. Well I decided to start easy and change the filter again thinking it could probley be the oil filter. Well guess what? It is. Old filter was a ac delco 52 and new one is a wix. Problem solved.

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#1288305 - 11/20/08 08:18 AM Re: Anti drain back valve failure [Re: dirtydave]
paul246 Offline


Registered: 09/26/07
Posts: 388
Loc: Canada
Glad you figured it out quickly and inexpensively, also thanks for passing it along.

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#1288338 - 11/20/08 08:53 AM Re: Anti drain back valve failure [Re: paul246]
rg200amp Offline


Registered: 02/10/08
Posts: 3130
Loc: Phila,PA
If only all car problems could be fixed that easy!!!
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#1288497 - 11/20/08 11:55 AM Re: Anti drain back valve failure [Re: rg200amp]
benjamming Offline


Registered: 01/03/04
Posts: 5805
Loc: northern Alabama
any pics?

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#1289471 - 11/21/08 10:00 AM Re: Anti drain back valve failure [Re: benjamming]
glenncof Offline


Registered: 05/31/06
Posts: 1051
Loc: Northern California
 Originally Posted By: benjamming
any pics?


of what ?

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#1289624 - 11/21/08 01:04 PM Re: Anti drain back valve failure [Re: glenncof]
dirtydave Offline


Registered: 09/18/08
Posts: 17
Loc: michigan
no pics. It was late at night, tossed in garbage and forgot about it.

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#1289638 - 11/21/08 01:15 PM Re: Anti drain back valve failure [Re: glenncof]
benjamming Offline


Registered: 01/03/04
Posts: 5805
Loc: northern Alabama
 Originally Posted By: glenncof
 Originally Posted By: benjamming
any pics?


of what ?


... of the ADB valve failure. Was the failure anything obvious one might see prior to installing?

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#1290304 - 11/22/08 07:23 AM Re: Anti drain back valve failure [Re: benjamming]
widman Offline


Registered: 05/27/02
Posts: 3217
Loc: Bolivia
I cut open 11 filters a week or so ago and will soon be posting some pics, but I was amazed at the way MOST of the anti-drain valves were designed (or not designed, just thrown in). Little thin rubber flaps, in one case against the bent fingers in the holes that held the base plate together.
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#1291110 - 11/23/08 07:52 AM Re: Anti drain back valve failure [Re: widman]
PT1 Offline


Registered: 02/06/07
Posts: 5746
Loc: near the mistake
I use wix filters in everything. I use the bitog sponsor http://www.fleetfilter.com check it out as the prices are very good.
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Oils well that ends well...

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#1291931 - 11/24/08 07:11 AM Re: Anti drain back valve failure [Re: PT1]
daman Offline


Registered: 09/23/06
Posts: 10903
Loc: Bad Axe, MI
Boy thats funny,thats all i run is a PF-52 and NG/WIX cross and cut
open there the EXACT same filter,carbon copy,both have the
silicon ADBV

unless you used a Mexico made 52,witch is a cheap pice of chit..
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"Always"....Mobil 1

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