Crankcase ventilation getting coolant in it?

2017 GMC ACADIA
158,000 MILES • 3.6L • V6 • 2WD • AUTOMATIC
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DOYLEKIRBY
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  • 1 POST
Crankcase ventilation from driver side of motor up to the top of the airbox intake is getting coolant it it. No coolant it oil. Possible problems or fixes? Thanks
Mar 5, 2026 at 6:37 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,682 POSTS
Can we get an image or short video of the problem? Is it orange coolant or chocolate milk? This makes a difference. So the coolant level in the reservoir keep going down? This guide can help

https://www.2carpros.com/articles/recognizing-the-symptoms-understanding-a-blown-head-gasket-in-your-vehicle

Do you have an external leak? After driving the car do you have a coolant puddle on the ground? We need more information to help you. Small internal engine coolant leaks will act like this FYI, coolant will show up as vapor in the upper part of the engine long before you see it in the oil. Ken
Mar 6, 2026 at 1:20 AM
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