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flatjack9 · 05-07-2019, 12:15 PM

I would pour the sealer in and circulate it through the system and let the engine warm up. Then shut the engine off and let it sit. You're not going to get enough pressure to overcome the exhaust pressure.

05-07-2019, 12:15 PM	#10
flatjack9 Senior Member Join Date: May 2010 Location: Oshkosh, Wi Posts: 4,539	Re: Exhaust in coolant I would pour the sealer in and circulate it through the system and let the engine warm up. Then shut the engine off and let it sit. You're not going to get enough pressure to overcome the exhaust pressure.