-_-
It's not the reservoir or the cap.
How do you know that it's "part of your heating problem?" Of course we're all fine with the stock reservoir, because it can't cause any issues besides not dumping coolant everywhere when your system is overpressurized. It's a failsafe, not a problem source.
It's something else that's causing the cap to bulge with pressure. Clearly you have some issue that is causing overpressurization in your cooling system. The gaskets go bad on the 3400 because GM used horrible quality lower intake manifold gaskets, which don't react well with Dex-Cool (or any coolant for that matter) and end up failing.
What happened to this? Here's your problem. Now all of a sudden you dodge the real issues and further complain that your coolant tank is the problem. I mean
DUH?!!
Quote:
Originally Posted by ChadCy75
Well fellas, it's not good. I need a LIM gasket, a water pump, AND the serpentine belt! Drat!! The gasket and the water pump both have a leak, and the belt is just old as hell, but hey, after dealing with the oil and the spark plugs, it doesn't surprise me. I'm not going to say that it is the original belt, but I would be willing to bet that it is. Oh well, like I figured, I'm going to have to get these few little problems worked out, and I'll have a champ that's going to last for a long, long time. I'll keep you all updated on my progress.
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Fix those issues, and realize the problem isn't the reservoir. It's doing its job trying to relieve the pressure in the system. You have something that's way overpressurizing everything.