Quote:
Originally Posted by bomelia
So you are talking about flushing the whole system... correct? Perhaps put some of that flush stuff in it first?
Mike
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Well flushing the whole system is rarely a bad idea.
But I would just flush the core first and see if that is the problem.
You will be surprised what all comes out of it with just water.
Preston makes a descent flush kit but I would just use water first. If the system flows freely you know you have a different problem.
Ford's have 'doors' in the heater core boxes that open and close when you turn on the heater. The door could be stuck closed, thus not letting the heat get to the interior. I would bet the problem is in the core though. Either way it should be a simple and inexpensive fix. If the core was leaking it is a big pain in the ass to get to.
Flush the core first, it is quick and easy.