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by tdalmany
Wed Sep 06, 2023 4:22 pm
Forum: Older Boats and Series
Topic: Overheating issues again
Replies: 31
Views: 7396

Re: Overheating issues again

I have a Cobalt 2015 220S with the Mercruiser 350 Mag. I am getting an alarm and the boat shuts down into guardian mode. This just started happening. The boat has 226 hours on it. New impeller two years ago. I took the boat to a marine mechanic and he says the codes the boat is throwing are hot ...