- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Make sure you have a good 50/50 solution of coolant. too much antifreeze solution can effect heater operation. test the heat hoses and make sure both hoses are hot .if one is hot and one not so hot the heat core could be restricted and needs flushed out
If they actually flushed the heater core itself you will need to check that the valve that allows coolant to flow through the heater core is operating properly. There should be a valve near the firewall where the 2 hoses attach to the heater core. In heat mode the valve should open and in A/C mode it should close. Please rate this answer, thanks.
these cars are infamous for coolant contamination cause restrictions in the heater core. i suggest performing a heater core flush followed by a complete cooling system flush. i have seen this dozens of times in these cars and this has been the fix nearly every time. good luck!
Sounds like the problem has to be the valve is not opening and thus not allowing the hot coolant to enter the heater coil. Manualy open the valve (engine firewall) and see if heat is present. If this works check your cable from the dash switch as it isn't working the valve properly and needs replacing.
Alternative 1: Blend Door actuator problem
There is a TSB out on this problem. If the thermostat and
everything else is good, you may have a problem with the Stratification
(Secondary) Temperature Blend Door. This door is now available separately
versus replacing the whole case assembly.The instrument panel needs to come off to gain access to it and this
might be a job best done by a Ford Dealer.
If you think you might want to give it a shot yourself, you
can get a copy of the TSB at the Ford Dealer. It is TSB number 02-23-6 dated 11/25/02. It has the repair procedure and
a list of parts needed.
Alternative 2: Heater Core needs to be flushed
Check heater core hoses.If both are hot, not enough heat inside, suspect blend door actuator.
If one hose hot and the other warm or cold, the heater core
need to be flushed (very common),