Question about 2002 Dodge Durango
When the engine is cold,check the coolant level.
Make sure it's on max.
A coolant system should be flush every two years.
If you did a coolant flush recently then air pocket can be the cause of the un-even heating problem.
The DIY method is to drive you car onto a ramp or a steep hill.
Iet the engine cool off and top off the coolant tank.
Set MAX heat + MAX fan
Let the engine ran for 20 minutes wih the cap off and the trap air will escape from the coolant reserve tank,
Check coolant level and top off coolant when the engine cools down.
A shop will charge $75+ for this but using an air operated excavate tool!
A car with over 90K miles may experience linkage problem to the heater control valve.
The heater control valve (near the firewall) may be stick over time.
Open the hood and move the heater to max and min. Back and forth.
Clean and lube the linkage with WD-40 to free the heater control valve.
If it's a vacuum type heater control valve then cash for leaky vac. hoses.
Move the fan switch back and forth to re-new the electrical conductors.
Pass a vacuum over the control panel to prevent dust build up behind the console.
Posted on Dec 03, 2009
You know , the heater core is fine , blower is fine , controller is somewhat ok , to my possiblty problem that water pump it self does not have out let heater hose to hook up , i thick it should redesign the water pump with out-let heater hose to attach si it can produce more presure(force) into heater core , thanks
Posted on Mar 20, 2009
Heater control valve for the front unit is bad.
Posted on Jan 09, 2009
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Posted on Jan 02, 2017
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