intake manifold on 1999 GMC Savana 1500

If the manifold causes a vacuum leak and eventually a coolant leak, is is possible for the coolant to leak into the motor?

by in Mission Viejo, CA on December 09, 2010
1 answer
ANSWER by , December 09, 2010
sure. there are coolant passages in the manifold in the front and back. a breech of the gasket can cause an internal coolant leak to the oil as well as a vaccuum leak. Roy