heater only produces "lukewarm" heat. have replaced the water pump, two thermostats. what could possibly be wrong?
Mar 18, 2013 at 1:08 PM
RANDICO
✓Experienced Mechanic
174 POSTS
Not producing the heat ,the heater core is than likely plugged, on the passenger side you will see 2 hoses that lead into the heater core disconnect one of the hose or even both and flush it out with a garden hose