2003 Dodge Durango FLUSHING COOLING SYSTEM

2003 DODGE DURANGO
38,000 MILES • V8 • 4WD • AUTOMATIC
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WBAUCKMAN
  • MEMBER
  • 1 POST
which heater hose on the water pump goes to the engine to flush out the system
Jul 18, 2008 at 9:57 AM
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KLSHIEL
  • ✓ASE Certified Mechanic
  • 163 POSTS
  • ASE Certified Mechanic
The hot coolant comes out of the engine and into the upper radiator and back into the engine through the lower hose. leave the lower hose connected. disconnect the upper. Put the water hose in the radiator filler neck and start the water. Then start the engine. Water flows through the radiator, engine, and out to the ground. After you have flushed it with the engine off you should run water through a few different spots and make sure the water coming out is clean. Especially check the heater core. You can find two lines one in one out on the passenger side fire wall about the same size as a garden hose. Gunk often builds up here and can be hard to flush out.
Jul 18, 2008 at 10:18 AM
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