Mechanics

PONTIAC BONNEVILLE COOLANT PROBLEM

2003 Pontiac Bonneville • 170,000 miles

Have a coolant leak that is not visible and not showing on ground. Have checked oil not seeing any coolant in oil or smelling in exhaust. Coolant was topped of three days ago was low enough to cause heater problems this morning.
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Guest
March 19, 2013.




Assuming it is a 3.4, as you gave us no egine size, common issue is the lower intake manifold

Roy

ASEMaster6371
Mar 20, 2013.


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