Explorer with no heat!!

[BrianLucky13]

2003 Ford Explorer with a 4.0 liter engine. When I turn the heat over to the hot part there is a clicking nose. No heat comes out, just cold air. Changed the thermostat so thats not the problem. Is the switch bad or stuck??? Any info will be great!!! Thanks

[fishing tech]

What you have is a broken temp blend door. I believe the blend door motors would turn to far and break the door. I can't remember if the whole plenuim has to be replaced or not. I will check, but there are a few other ford guy on here that will know.

[Jeremy airjer W]

I'd agree with the blend door issue. If 4WS sees this he may have a bulletin that will help you out.

[Scott K]

These guys are correct, it is more then likely the blend door that is busted, there was a tsb for the older ones, an 03 doesn't have a tsb, yet. I don't think you can get them without replacing the entire heater plenum assy. It is a rather spendy job.

[Jeremy airjer W]

I did see a company that was making then out of metal and selling them with an install kit. I can't remember what the name was but it may be worth searching around for.

[BrianLucky13]

Thanks guys!!

[Big Buck Buster]

If I remember correctly on this situation, the plenum needs to be replaced do to it warping causing the breaking of the door. The dash will have to be either removed or pulled back far enough to get the plenum out. The A/C will have to be recovered along with enough coolant to get the assembly out.

[bucketmouth64]

sound like the blend door. Very expensive to have replaced. I had it done earlier this year. Whole dash needs to come out to get part replaced. Cost is about a grand to have it all done at the dealership.

[1968]

Heatertreater is the name. While their do it yourself methods are quite crude, they seem effective. The doors however look outstanding compared to the OE plastic doors. They also have detailed vids of their no dash removal methods. It should give you an idea if you can handle the job.

Regardless of who does the repair, I would'nt use anything but the metal door. If you are going to keep it around a while you don't want to pay for two dash pulls. Quite often the new OE part hasn't been improved and isn't any better than the one that already broke way too soon.

[Jeremy airjer W]

Its been about 5 months since we seen you last 1968!

HeaterTreater is the one I was thinking of.