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Mechanical Problems

WARNING: This page is about a different car, the 2007 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

Possible causes of insufficient heat due to mechanical problems are as follows:

  1. Low coolant level (coolant leak or loose or missing pressure cap)
  2. Obstructed cowl air intake
  3. Obstructed heater system outlets
  4. Inoperative engine thermostat (stuck or sticking open)
  5. Inoperative blower motor system
  6. Inoperative A/C-heater control
  7. Inoperative temperature control cable
  8. Inoperative, obstructed or improperly installed blend-air door
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