Question about 2000 Ford Focus

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Lack of heat

With car at operating tem. heater puts out minimal heat. It is luke warm if I keep blower on #1 setting. When put too #4 setting, it feals as if its cooling off. Coolant level is right. I tried a new thermastat, no change. Engine does not run hot and I do not have the issues of a bad heater core (smell in cab,water on floor,ect.) I almost believe its something with the dial and or ducting that allows the heated air to enter the cab. I see that this is all electronic and wounder if it is maybe a servo or motor issue. The blower motor works very good in all settings. It has an excellent A/C. What can I do myself to cure this outside of a mechanic/$500/ and new core. This has been "thier" answer to everything.
2000 ford focus DOHC automatic 4 dr -thankyou for
your time.
Sky

Posted by on

  • muffler5 Feb 25, 2009

    fan blows lots of air, engine temp is up, coolant level is fine and grill

    area is closed in. Air temp. at best is luke warm.

    2005 F250 6L diesel.

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Sadly "there" explanation is probly correct, when you say you have some but not alot of heat on low and then almost non on high, that is due to a plugged heater core. A heater core acts as a miniature radiator inside your cab. When the fan passes the air by it it picks up the heat and blows that into the cab. While doing that it also cools down the heater core. The more are you pass by it the cooler the core gets. What you can try first before replacing it is a coolant flush. This will run a mild acid like sollution through your entire cooling system. Sometimes that alone is enough to let more hot antifreeze run into your heater core thus giving you more heat. Another option is to disconect both lines into your heater core from in the engine compartment and run a hose into one , leaving the other to drain out. Depending on how plugged it is sometimes you can "Flush" out the buildup this way as well. G'luck and keep warm!

Posted on Dec 15, 2008

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