what would cause the heat to work only when the van has been running for a while
Dec 27, 2010 at 1:30 PM
JACOBANDNICKOLAS
✓Experienced Mechanic
110,248 POSTS
THe engine needs to be warmed up before heat will be created. If the engine is taking a long time to warm up, chances are the thermostat needs replaced. Also, make sure the coolant is full.