Why heater is not blowing hot

60

Asked by Aug 04, 2013 at 06:28 PM about the 2003 Dodge Neon 4 Dr SXT Sedan

Question type: Maintenance & Repair

I have a 2003 dodge neon sxt I
changed out the thermostat and
heater not blowing hot and making
noise and motor sounds strange.
Why?

9 Answers

if you check the translucent coolant jug is it filled between "hot" and "Cold"??? what color is your coolant? brown?

8 of 8 people found this helpful.

tell me you did not use tap water...but a 50/50 ethylene glycol mix~

4 of 4 people found this helpful.

there is a "dip tube" inside the cap...if this one falls off you WILL overheat~

4 of 4 people found this helpful.

I believe yours has a cable operated diverter valve that opens the coolant to the heater core~ examine the function with one person activate and the other at the diverter to see if it is movin'~

2 of 2 people found this helpful.
1,745

The blend door on these cars is cable actuated - it's possible for the blend door to bind up and prevent the door from diverting hot air through the heating ducts.

4 of 4 people found this helpful.
60

Where is the blend door??

6 of 6 people found this helpful.
1,745

The blend door is built into the heater box... The dashboard needs to be removed to access it.

3 of 3 people found this helpful.
60

Omg!!!! Ok thanks

150

In this case the blend door can be checked from the passenger seat where there's an access panel so no need to pull the dashboard.

15 of 15 people found this helpful.

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