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a dodgetech
a dodgetech, Dodge Technician
Category: Dodge
Satisfied Customers: 606
Experience:  Chrysler Master Tech 15+ Years of A/C and Electrical and Body Mechanical
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2005 Dodge Caravan: the radiator have a petcock..vents..flush

Resolved Question:

2005 Dodge Caravan - Does the radiator have a petcock to drain the system? If so, where do I find it. Also, are there any vents that need to be opened when I flush the system?
Submitted: 7 years ago.
Category: Dodge
Expert:  a dodgetech replied 7 years ago.

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The draincock is located on the lower left side of radiator.




Drain the cooling system and refill with water. Run the engine with the radiator cap installed until the upper radiator hose is hot. Stop the engine and drain the water from system. If the water is dirty, fill the system with water, run the engine and drain the system. Repeat this procedure until the water drains clean.


Reverse flushing of the cooling system is the forcing of water through the cooling system. This is done using air pressure in the opposite direction of normal coolant flow. It is usually only necessary with very dirty systems with evidence of partial plugging.


Disconnect the radiator hoses from the radiator inlet and outlet. Attach a section of the radiator hose to the radiator bottom outlet fitting and insert the flushing gun. Connect a water supply hose and air supply hose to the flushing gun.

CAUTION: Internal radiator pressure must not exceed 138 kPa (20 psi) as damage to radiator may result.

Allow the radiator to fill with water. When the radiator is filled, apply air in short blasts. Allow the radiator to refill between blasts. Continue this reverse flushing until clean water flows out through the rear of the radiator cooling tube passages

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Customer: replied 7 years ago.
Dumb question; Lower left as I face the car or sitting in the car?
Expert:  a dodgetech replied 7 years ago.
sitting in the car