2004 Ford F-150: HVAC blend door
2004 Ford F-150 · 11th (2004-2008 redesigned, not Heritage) · 5.4 3V Triton, 4.6 3V Triton
What this is
The HVAC blend door behind the dash is a known nuisance on these trucks. Heat or A/C stuck on the wrong setting, plus clicking, usually means a door or actuator — and labour is the expensive part because the dash is in the way.
How you’d notice
- Heat or A/C stuck on the wrong setting
- Clicking behind the dash
- Only floor or only defrost, no in-between
- One side of the cab a different temperature
Typical shop cost
| Repair | CAD | USD |
|---|---|---|
| Independent shop, parts and labour, before tax | $400–$1,200 | US shop quotes vary |
As of 2026. Ballpark, not a quote for the vehicle in the ad. CAD figures are Vancouver Island independent-shop ranges. USD is only printed when we’ve entered a US shop range — we don’t invent one.
A lift, not a driveway glance. You pay the shop. First appointment of the morning so the engine is cold.
Mechanic’s tip: spot it before you buy
With the engine warm, run heat and A/C and listen behind the dash. Clicking plus the wrong temperature is the tell.
The bigger picture on this listing
This page is the year and model. The report is the vehicle in the ad. We do not publish, for this listing:
- whether these photos hide this job
- whether the asking price already assumes it
- tax on this price
- a named shop in this city — we only print phones we’ve checked
That’s the $34.99 document. Homework, not an inspection.
Questions people actually ask
Can I drive without fixing it?
Yes. In a wet-coast winter, a blend door that will not give you heat is not optional. Price the labour, not just the part.
Is this the same job as the A/C evaporator?
No. The evaporator is a different dash-out job when the A/C blows warm. Do not let a seller collapse every HVAC complaint into one quote.
More on this 2004 Ford F-150
- A/C evaporator$1,200–$2,000 CAD
- Automatic transmission 4R75E$3,000–$5,500 CAD
- Cam phasers / timing chains$2,500–$5,000 CAD
- Exhaust manifold bolts$800–$2,000 CAD
- Frame / cab mount rustOften not worth repairing CAD
- Front end (ball joints, tie rods)$400–$1,500 CAD
- Fuel pump / module on frame$600–$1,200 CAD
- IWE / 4x4 vacuum hubs$150–$1,200 CAD
- Power window regulators$250–$450 CAD
- Rear axle / pinion seal$300–$1,800 CAD
- Two-piece spark plugs$400–$2,000 CAD
The same problem on other cars
No other models in the knowledge base share this job yet. When they do, they land here.