Heat is not getting hot in my 97 mercury cougar 4.6 v8

Asked by Mar 02, 2017 at 05:11 AM about the 1997 Mercury Cougar 2 Dr XR7 Coupe

Question type: General

My a.c. works well but my heat doesn't work in my
97 mercury cougar xr7 v8. Why?

2 Answers

could be either heater core or heater coil,go look on youtube

107,505

Make sure th mode control is actually switching from A/C to heat, if the blend door is stuck you won't get any air flow through the core, another thing to check is the coolant level, if it is low the first thing that is effected is the heat, then after it is warmed to operational temp, feel both the heater hoses, they should feel quite hot, if one feels hot and the other not so much then you have a plugged heater core, sometimes back flushing it will help but usually you will have to replace it. This of assuming that the engine is reaching operational temps and the thermostat isn't stuck wide open so the engine is running cold.

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