Ford Expedition 2008 Fuse Replacement
Having an electrical issue? It could be a blown fuse — an easy fix you can do yourself.
Follow the steps below to find and replace the fuse:
Step 1: Find the Fuse Box
In your Ford Expedition 2008, the interior fuse box is typically located under the dashboard on the driver's side. Some vehicles also have an additional fuse box in the engine compartment. Check your owner's manual or the fuse box cover for the exact location.
Step 2: Identify the Corresponding Fuse
Below is the complete fuse list for your vehicle. Find the circuit that isn't working and note the fuse number and amperage.
Passenger compartment Fuse Box
| Fuse # | Function | Amperage |
|---|---|---|
| 1 | Smart window #1 | 30 |
| 2 | Driver side module, CHMSL brake on/off | 15 |
| 3 | FES | 15 |
| 4 | Smart window #2 | 30 |
| 5 | Keypad illumination, 3rd row' seat enable, Brake Shift Interlock (BSI), SPDJB, TPMS initiators | 10 |
| 6 | Turn signals | 20 |
| 7 | Low beam headlamps (left) | 10 |
| 8 | Low beam headlamps (right) | 10 |
| 9 | Interior lights | 15 |
| 10 | Backlighting, Cargo lamps, Puddle lamps | 15 |
| 11 | 4x4 | 10 |
| 12 | Power mirror switch, Driver side power seat memory, Driver side power fold mirror relay motor | 7.5 |
| 13 | Power fold mirror motor, Digital Signal Processing (DSP) | 7.5 |
| 14 | Power liftgate module - keep-alive power | 10 |
| 15 | Climate control | 10 |
| 16 | Electronic parking brake release | 15 |
| 17 | All lock motor feeds, Liftgate release, Liftglass release | 20 |
| 18 | Not used (Spare) | 20 |
| 19 | Rear wiper | 25 |
| 20 | Adjustable pedals, Datalink | 15 |
| 21 | Fog lamps | 15 |
| 22 | Park lamps relay | 15 |
| 23 | High beam headlamps | 15 |
| 24 | Horn relay | 20 |
| 25 | Demand lamps | 10 |
| 26 | Instrument panel cluster | 10 |
| 27 | Ignition switch | 20 |
| 28 | Radio | 5 |
| 29 | Instrument panel cluster | 5 |
| 30 | Not used (Spare) | 5 |
| 31 | Compass, Automatic dimming rear view mirror | 10 |
| 32 | Restraints control module | 10 |
| 33 | Ebrake | 10 |
| 34 | Not used (spare) | 5 |
| 35 | Rear park assist, 4x4 | 10 |
| 36 | PATS transceiver | 5 |
| 37 | Climate control | 10 |
| 38 | Subwoofer/Amp (Audiophile radio) | 20 |
| 39 | Radio | 20 |
| 40 | Instrument panel amp, DSP, Radio, 4x4 module | 20 |
| 41 | Radio, Fixed backlighting | 15 |
| 42 | Upfitter relay coil, Trailer tow, Battery charge coil | 10 |
| 43 | Rear wiper logic | 10 |
| 44 | Customer access feed | 10 |
| 45 | Front wiper logic | 5 |
| 46 | Not used (Spare) | 7.5 |
| 47 | Power windows, Moon roof | 30 |
| 48 | Delayed accessoiy relay |
Power distribution box Fuse Box
| Fuse # | Function | Amperage |
|---|---|---|
| 1 | Blower relay | |
| 2 | Not used | |
| 3 | Rear window defroster relay | |
| 4 | Third row seats (driver side) | 30 |
| 5 | Trailer tow connector (electric brake) | 40 |
| 6 | ABS (valves) | 60 |
| 7 | Not used | |
| 8 | Heated/cooled seats | 40 |
| 9 | ABS (pump) | 60 |
| 10 | Rear console power point | 20 |
| 11 | Auxiliary blower | 30 |
| 12 | Trailer tow connector (park lamps) | 25 |
| 13 | Trailer tow connector (battery charge) | 30 |
| 14 | Not used | |
| 15 | Not used | |
| 16 | A/C clutch relay | |
| 17 | Not used | |
| 18 | Fuel pump relay | |
| 19 | Back-up relay | |
| 20 | Trailer tow connector relay (left turn signal) | |
| 21 | Trailer tow connector relay (right turn signal) | |
| 22 | Not used | |
| 23 | Heated mirrors | 15 |
| 24 | Blower motor | 40 |
| 25 | Not used | |
| 26 | Not used | |
| 27 | Power liftgate | 30 |
| 28 | Rear window defroster, Heated mirror | 40 |
| 29 | Passenger seat | 30 |
| 30 | A/C clutch | 10 |
| 31 | Brake lamps | 15 |
| 32 | Fuel pump | 20 |
| 33 | Back-up lamps | 20 |
| 34 | Trailer tow connector (stop/turn lamps) | 25 |
| 35 | 4x4 module | 20 |
| 36 | Powertrain Control Module (PCM) - Keep alive power, Canister vent | 10 |
| 37 | Transmission B+ | 15 |
| 38 | Third row seats (passenger side) | 30 |
| 39 | Air suspension pump | 50 |
| 40 | Starter motor | 30 |
| 41 | IP/Console power point | 20 |
| 42 | Not used | |
| 43 | 4x4 module motor | 20 |
| 44 | Not used | |
| 45 | Driver seat | 30 |
| 46 | Run/Start bus bar | 40 |
| 47 | Air suspension - solenoids | 30 |
| 48 | Not used | |
| 49 | Front wipers/washer | 30 |
| 50 | PCM - bus bar | 30 |
| 51 | Cargo power point | 20 |
| 52 | Cigarette lighter | 20 |
| 53 | Air suspension relay | |
| 54 | Starter relay | |
| 55 | Trailer tow connector relay (park lamp) | |
| 56 | Trailer tow connector relay (battery charge) | |
| 57 | Run/Start relay | |
| 58 | Not used | |
| 59 | PCM relay | |
| 60 | Not used | |
| 61 | A/C clutch diode | |
| 62 | Fuel pump diode | |
| 63 | Trailer tow connector (back-up lamp) | 15 |
| 64 | Not used | |
| 65 | Air suspension logic | 10 |
| 66 | Not used | |
| 67 | Blower coil | 10 |
| 68 | Not used | |
| 69 | Run/Start - passenger compartment fuse panel | 30 |
| 70 | PCM (sensors) - EFC, A/C clutch coil | 20 |
| 71 | Fuel coil, ISP-R | 5 |
| 72 | PCM (ignition coils) | 20 |
| 73 | Transmission ignition | 5 |
| 74 | PCM (sensors) - HEGO/CMS, MAFS, EVMV, CMCV, Speed deactivation switch, VCT | 20 |
| 75 | 4x4 Integrated Wheel Ends (IWE) solenoid | 5 |
| 76 | PCM - VPWR | 20 |
| 77 | ABS logic, Heated PCV | 10 |
Step 3: Check the Fuse
Use the plastic fuse puller, typically found in the fuse box, to remove the fuse. Hold it up to a light source. If the metal filament inside is broken or charred, the fuse is bad and needs to be replaced.
Step 4: How to Get a Replacement
You can buy a replacement fuse at any auto parts store. Make sure you match the **amperage (A)** and **physical size** of the fuse exactly. For example, if you need a 20A fuse, get a 20A fuse.
Step 5: Replace the Fuse
Gently press the new fuse into the empty slot. You should feel a slight click when it's securely in place. Test the affected circuit to confirm it's working again.
What Now?
Fuse Was Blown — What to Buy
Ask at any auto parts store (AutoZone, O'Reilly, Advance Auto) for a blade fuse with the same amperage printed on the old one (e.g., 10A, 15A, 20A). Also match the physical size — mini (most modern cars), standard, or maxi. Replacement fuses cost under $5 and most stores sell assorted packs.
Fuse Looks Fine — Other Causes
If the fuse is intact, the problem isn't a blown fuse. Common alternatives include a bad relay (a click-sized electrical switch), a faulty wiring connection, or a failed component (motor, switch, module). At this point, a mechanic's diagnostic is the most reliable next step.
Frequently Asked Questions
What happens if I put in the wrong amperage fuse?
Higher amperage fuses won't protect the circuit and can cause wiring damage or fire. Lower amperage fuses will blow again immediately. Always match the exact amperage.
Why does my fuse keep blowing?
A repeatedly blown fuse indicates an underlying short circuit or overload. Replacing it again won't fix the root cause — consult a mechanic.
Do I need any tools?
Most cars come with a plastic fuse puller in the fuse box lid. If not, fine-tip needle-nose pliers work. A small flashlight helps.
How do I know what size fuse to buy?
Match the amperage printed on the old fuse (e.g., 10A, 15A, 20A) and the physical blade size (mini, standard, maxi). Auto parts stores carry assorted packs.