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Oil filter stuck!


gc_caddy

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After all these years of changing my own oil, it had to happen. The oil filter is stuck on my Northstar - 94 STS. The filter points straight down, and there isn't a lot of clearance to get a really good grip around the filter. There is maybe 1/4" between the filter and the frame.

Any ideas? I'm not sure if one of those "end-cap" filter removal sockets would fit. I guess I'll need to check it out tomorrow. It's frustrating when a 20 minute job ends up taking hours.

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Any good auto parts store will have an end cap socket for your filter. It is best to have an example of the exact brand and part number filter with you when you buy the socket.

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I only use the end-cap filter sockets to change filters. It's easy to get the filter off, and easy to put the new filter on, tightened to exactly 1 turn after initial contact.

I use the same (ACDelco PF-61) filter everytime, which makes incompatibility due to different filter brands a moot point. If you just cannot get the old filter off, carefully drive a flat blade screwdriver into the side of it and turn. I've had to do it before on a used car I once bought. Someone must have used an impact gun on that filter!

Jason(2001 STS, White Diamond)

"When you turn your car on...does it return the favor?"

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I agree with Jim and Jason, when you have a problem like you are having that is the best tool.. I have two but neither fit my oil filter on the NS, I need to buy one, I have the old style oil filter 'strap type' and its hard to get in there..

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I have two end-cap filter sockets hanging on my peg board. One fits the ACD PF-61 filter that goes on the Cadillac(s for now) and the other one fits the Mopar M0-090 filter that goes on the Dodge.

Fortunately, most filter sizes are "standardized" to some degree. I used to use ACD PF-13 filters on the Dodge, but ACD must have changed suppliers for that filter size because it no longer looks any better than a SuperTech. :blink: The Mopar filters I saw in the store looked good and hearty (like the ACDs used to), so I bought 'em out. Fortunately, the end-cap filter socket fit the Mopar filters also.

Jason(2001 STS, White Diamond)

"When you turn your car on...does it return the favor?"

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The end cap filter sockets work best on the Northstar. Just be sure to get one that is the right size. I have had an aluminum one for years that always slipped. Then I realized that they come in different sizes. Finally broke down and bought a composite one that fits like a glove. No more slippage.

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Here is the one I have, it is a real PIA when inadequate room, I need to buy an oil filter socket that fits mine (like the third photo below mine),

http://www.pelicanparts.com/catalog/ShopCa..._CAT213_pg3.htm

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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It's nice for me because I have 5 vehicles and only 2 different filters. My 01 suburban, girlfriends 02 envoy, and the 02 STS all take the same filter. My 84 suburban and 92 silverado take the same one. It's really nice when buying filters. I had my 84 suburban filter get stuck when I first bought it. Can't remember how I got it off, but it wasn't fun, I remember that. Good luck

-Dusty-

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I bought the FLOTOOL "graphite composite" end cap socket today at Walmart. It works like a dream, but as JIMs mentioned earlier, bring along an old filter (or the part no). There are several FLOTOOL models to choose from, and you can't really "eyeball" which one will fit.

The one I really wanted is referenced below. It's adjustable. But I was in a hurry to get my STS back on the road.

http://www.napaonline.com/MasterPages/NOLM...l+Filter+Wrench

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If you're in a pinch - there's always the hammer & screwdriver way. This isn't neccessarily recommended, but once the car is jacked up and all else fails this method will work as a last resort....

Tom R.

1998 Cadillac STS with 102K Miles

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a trick with the oil filter socket to make it a bit tighter/snug is to use a shop rag as a clearance adjuster. lay the rag on the socket and push it on the filter. makes it very tight indeed.

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I have had this happen on my caprice a few times and I have actually cleaned the oil residue in the cap wrench out and added a layer of duct tape around the inside of the notches and tapped it on to the end of the filter...worked every time for me.

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I would not suggest using the screwdriver through the filter method. Especially when the N* has an easy removeable filter adapter. Just remove the two bolts, any cooler lines, and unplug the pressure switch. Then seperate the filter from the adapter. Less likely to cause damage this way.

Don

"Modern warriors saddle iron horses of chrome."

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