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Larger radiator require different cap?


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Hi

I have a 90 1500 Suburban 4x4 5.7L and I put a larger radiator in it probably from a big block. It currently has a 15 lb cap do I need a cap for less pressure. The reason I ask is because I got it from someone I trust that said it does not leak but after driving for a day it started to lead from the drivers seam.

What do you think could the cap be to high of a pressure for my system?

Thank you

Karl

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