Common Jeep Issue: No Heat

Make: Jeep | Model Example: 2014 Wrangler | Avg. Mileage: 111861 | Job Number: 456726

Repair Issue:

No Heat

Cause:

Blend Door Actuator Motor – Blend Door Shaft – Coolant Flow – Engine Coolant Thermostat – Heater Core – Heater Ventilation Air Conditioner (HVAC) Control Head

Customer Concern:

No heat

Test/Procedure:

1. Check the coolant temperature on a scan tool while driving, making sure it is over 180 degrees.
2. Check the temperatures of both heater hoses they should be fairly even.
3. Using a compatible scan tool check for codes in the HVAC system. Disconnect the battery and reconnect. This will force the system into a recalibration. Door movement can be monitored then.

Important Take-A-Way:

There are 3 quick tests presented here to help a technician verify first that the engine is reaching proper operating temperature, a quick test to try and check for a restricted heater core, and a quick was to check to see if the blend door actuator motor is capable of moving. In a very short time a technician can be pointed to one of the common causes of this problem.

Most Popular Fix:

Replaced/Flushed/Cleaned Heater Core or Replaced/Connected/Reset/Repaired Blend Door Actuator Motor or Performed Cooling System Flushing Procedure

Other Common Car Problems:

View more common car problems from the most popular manufactures including Ford, Dodge, Chevrolet, Honda, Toyota, and more. Read more

Also applies to the following Makes and Models:

2006 Dakota 3.7, 2007 Dakota 4.7, 2017 Durango 3.6, 2005 Magnum 5.7, 2007 Nitro 3.7, 2008 Nitro 3.7, 2009 Nitro 3.7, 2010 Nitro 3.7, 2011 Nitro 3.7, 2010 Ram 1500 4.7, 2010 Ram 1500 5.7, 2008 Commander 3.7, 2010 Commander 5.7, 2011 Grand Cherokee 3.6, 2012 Grand Cherokee 3.6, 2013 Grand Cherokee 3.6, 2014 Grand Cherokee 3.6, 2015 Grand Cherokee 3.6, 2005 Grand Cherokee 3.7, 2006 Grand Cherokee 3.7, 2007 Grand Cherokee 3.7, 2008 Grand Cherokee 3.7, 2009 Grand Cherokee 3.7, 2010 Grand Cherokee 3.7, 2005 Grand Cherokee 4.7, 2005 Grand Cherokee 5.7, 2006 Grand Cherokee 5.7, 2007 Grand Cherokee 5.7, 2008 Grand Cherokee 5.7, 2009 Grand Cherokee 5.7, 2010 Grand Cherokee 5.7, 2005 Liberty 3.7, 2006 Liberty 3.7, 2007 Liberty 3.7, 2008 Liberty 3.7, 2012 Wrangler 3.6, 2013 Wrangler 3.6, 2014 Wrangler 3.6, 2015 Wrangler 3.6, 2013 1500 5.7, 2014 1500 5.7, 2015 1500 5.7, 2016 1500 5.7, 2017 1500 5.7, 2014 2500 6.4, 2015 2500 6.4, 2016 2500 6.4, 2014 3500 6.4, 2016 4500 6.7, 2017 5500 6.7

Author: Michael Brown

Michael began his automotive career in 1979. His experience includes Chrysler, Mitsubishi, Porsche, and Saab. Michael is certified ASE Master. Michael has been working as a technician on Chrysler products for 32 years, but he’s also worked on VW, Porsche, and SAAB with a few years of dealership experience. He’s also worked at several independent establishments on just about anything that got dropped at the door. Mike was hired by Identifix in 2000, and has a total of thirty-eight years’ experience.

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