Heater hose clamps like pictured can be removed easily with special hose clamp tools.

Summary: © DenLorsTools.com In this auto service repair article, we cover how car heaters work. Knowing how the automotive heater system is designed to work, allows the car owner or auto tech to diagnose problems more quickly and easily. Car heaters are designed much differently than home heaters, therefore diagnosing and repairing auto heaters requires different service procedures. Auto service tips and information provided in this car repair article is written by a master automotive technician that has many years in the field. The info. is provided in simple language that is easy to understand by anyone – experienced in auto service or not. (Be sure to read the questions and answers in the comment section at the end of the article. Also see page 2 of Car Heater Blows Cold for even more tips.)

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Heater door shafts can break causing problems with heat and AC

Jeep Grand Cherokees have a common problem with the dual zone temperature controls. Dual zones, control the temperature on passenger and driver’s sides independently, allowing different preferences.

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