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Missing rear coolant bypass line

SnowbearBecker

New Member
Joined
May 6, 2022
Messages
3
Hey guys first off thanks for taking the time to read this. So I am doing my head gaskets on my 2003 chevy avalanche 1500 5.3 and I notice while I'm working that the back two coolant bypass areas are just plugged no lines is this normal or after market
 
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