smell of exhaust when heater runs on 1995 Mercury Villager

only when the vehicle is at a stop, or warming up

by in Clearwater, MN on November 22, 2010
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2 answers
ANSWER by , November 22, 2010
Check for an exhaust leak - at the engine to exhaust manifold, or somewhere in line on the exhaust system. Your heater is likely picking up the exhaust leak as it takes in air form the outside to circulate in your van.
ANSWER by , November 11, 2011
Probrbly has at least one broken/missing exhaust manifold bolt.