Quote:
Originally Posted by ponchonlefty
you could pressure check the coolant system. maybe find it. how often do you have to refill?
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I already pressure checked and it holds the same pressure for 45 minutes , I don’t drive the car much especially in the summer too damm hot but I add maybe a quart , after 2 driving outings … I retorqued the heads , pulled plugs and they all look the same clean (thanks E85) so maybe a head porting guru knows if it’s common for a max ported 6x -4 head to develop a pin hole and could it be leaking into a intake or exhaust port ? I am not seeing any I’ll effects in the way the engine runs .. i guess the only way to really find out is to pull the heads major job with a turbo , or live with it .. going to try the GM tablets to see if that helps as suggested …