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Heater not blowing hot air on 1995 Ford Escort

My heater is not blowing out hot air when the car is sitting still or idling a light you can smell exhaust fumes

Asked by for the 1995 Ford Escort
Is it blowing cold air? Just making sure it's blowing air at all.

If it's only cold, you could have a theromstat problem - the engine may not be warming up. Check the hoses going into and coming out of the heater core. If they are both cool or luke warm, then it's a thermostat issue. If one is hot and one is cool, then you could have a heater core restriction.

The exhaust fumes - make sure you do not have any exhaust leaks - this is bad all the way around. Besides that, make sure you have the reciruclation setting on, keeping air from coming in from the outside.
1 more answer
Is it blowing cold air? Just making sure it's blowing air at all.

If it's only cold, you could have a theromstat problem - the engine may not be warming up. Check the hoses going into and coming out of the heater core. If they are both cool or luke warm, then it's a thermostat issue. If one is hot and one is cool, then you could have a heater core restriction.

The exhaust fumes - make sure you do not have any exhaust leaks - this is bad all the way around. Besides that, make sure you have the reciruclation setting on, keeping air from coming in from the outside.