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Tried it all, I need help. A constant Oil pressure fight.
For reference, the rear cover is part #28 and the seal in question is #29. Rear main seal itself is #27. Usually available from GM as a kit with 27, 28, and 29. I don't have a number though...- AngryFish
- Post #55
- Forum: Engine & Drivetrain
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Tried it all, I need help. A constant Oil pressure fight.
Well, the good news is that you'll find it if you pull the motor, so you may want to get parts ready. if you know the valley plate and intake and such are good, it's very probably the same issue I just had repaired at just shy of 300k. On the back of the engine block, there is a cover that...- AngryFish
- Post #54
- Forum: Engine & Drivetrain
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Tried it all, I need help. A constant Oil pressure fight.
From what I read, it sounds like you think you need bearings and a lot of engine work, and are toying with the level of engine replacement or major machining. If you suspect a major sludge issue, a small amount of solvents added just sounds like a surefire way to be stranded somewhere when a...- AngryFish
- Post #50
- Forum: Engine & Drivetrain
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Pulling off the Perfect NP246 Transfer Case Rebuild
My truck is a 2003. Showing some age but still moving along. The switch module should start up right away and do a self-check just like the dash. All the LED's should light just like all the lights on the dash cluster so you can see if they are burnt out. Each LED is on its own wire, with a...- AngryFish
- Post #11
- Forum: Engine & Drivetrain
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Pulling off the Perfect NP246 Transfer Case Rebuild
Best of luck with the build. I plan to be doing something very soon to mine... I think there may be some seepage through the casting in the normal pump rub locations. Can you give a bit more info on the 4wd switch issue? If I recall, I took mine apart to check for and resolder all the...- AngryFish
- Post #8
- Forum: Engine & Drivetrain
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Greetings and another oil leak post
If it looks like the rear main leaking, but the rear main is good, then it's probably the cover gasket. The rear main seals to the rear cover, and the rear cover has a gasket to the block. There are two oil galleries at the top that are connected and sealed by this gasket, and the rear cover...- AngryFish
- Post #17
- Forum: Engine & Drivetrain
