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Don Knight
Don Knight, ASE Certified Technician
Category: Dodge
Satisfied Customers: 1736
Experience:  40+ years all makes&modles
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coolant to boil out of the reservoir tank..thermostat and temp sensor

Customer Question

What causes coolant to boil out of the reservoir tank? I've changed the thermostat and temp sensor and its still happening...
Submitted: 5 years ago.
Category: Dodge
Expert:  Don Knight replied 5 years ago.

Don Knight :

Good morning and welcome to JA.The most common cause for this problem is either a defective water pump or a head gasket problem.You could also have air trapped in the system.When you refilled the coolant resouivor did you fill the rear chamber as there are two chambers in the tank.If you just fill the front part you will have air is the system causing this problem.Please let me know if you need more assistance,Don