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Re: 2002 Silverado Oil Cooler Fitting Leaks
J-Cat, you may be right, the hard line might be aluminum. Which is not good, being a soft metal, it has probably worn from vibration over the many miles. And it seems every time I take things apart and reconnect it, the leak gets a bit worse. Had to put it back together to drive to work today, and I wish I would have zip-tied a shop rag around that line & fitting this morning, to act as a diaper. It is probably going to make a mess under the hood by the time I get home this evening. 76 mile round trip.
Just a thought here, I wonder if the big block HD2500 trucks use a different cooler fitting? I may search the parts websites as if I have an 8.1 and see if a different P/N comes up...
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-Jim
2015 Silverado Crew Cab 2500HD 6.6 Duramax 4x4
2002 Silverado Crewcab HD 2500 6.0 4x4 Sold 281K Great Truck
1970 Chevelle SS454 (Gave to my son 9 years ago for his 18th birthday. Yeah, I know, crazy, right? Thank goodness he doesn't drive it the way I would, -er, did...). 
1971 Monte Carlo SS454 Drag Racer. The old girl finally got new paint!
1968 Camaro SS (New race car project). Caged, Tubbed, Back-Half/Ladder Bars. Rolling Chassis (For now).
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