Chevy and GMC Duramax Diesel Forum banner
1 - 2 of 2 Posts

· Registered
1 Posts
Discussion Starter · #1 ·
my lb7 duramax has been kinda weird with coolant it has black stuff on it like oil and it gets really low but once the truck is warm it goes back up and today when I open the reservoir cap after letting it warm up for 30 minutes coolant start to pour out of the overflow any ideas ?
1 - 2 of 2 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.