20 Most Recent 2008 Ford Expedition El Questions & Answers

I will try to answer and offer you a couple of choices based on 2 different potential problems. The blower motor resistor is the control for both the heater fan blower and the A/C since they are the same blower motor. It is the boost that you need to feel either heat or A/C through the vents. The part can be traced from the heater blower wires under the hood to a control about the middle of the Firewall. 2 bolts hold it in place with 1 connector wire. But a heater line will likely block access to switching the part. It is often a part that tapping will start it working again. Another A/C intermittent problem is low Freon. A certain pressure will engage the A/C compressor switch. Since outside air temperature can boost the internal pressure remaining in your A/C system, every time it expands the Freon; your system may work.

could be the inertia sensor is tripped and you do not have power to the fuel pump. Try a spray of starting fluid to see if the motor wants to start, then you know it is a fuel problem. The location of the inertia switch varies sometimes year to year in same model. Do a Websearch specific to your year and model. They have a push button to reset the switch.

the ac pressure depends on the gas in use r314 runs at high pressures overheating at slow speeds indicate an inefficient coolant fan and the high ac pressures indicate that the condenser fan also is not operational if it has a viscous fan hub , replace the fan hub if it has electric fans check / the fans, fan relay , fuses , coolant temp sensor

The roof opening panel assembly uses an integrated motor and module to operate the roof opening panel. The roof opening panel motor and module are installed new as an assembly. The roof opening panel is an electronically operated glass panel that can be opened or closed by the roof opening panel switch. Actuating the switch in either a forward or rearward motion supplies a ground to the roof opening panel motor/module. The soft-stop function is controlled by the roof opening panel motor/module. The roof opening panel has 3 modes of operation, manual mode, express open and tilt. The express open feature is activated when the switch is pressed momentarily. The tilt feature is activated when the tilt switch is depressed. These functions are controlled by the roof opening panel motor/module. Visual Inspection Chart Mechanical Electrical

• Roof opening panel
• Roof opening panel frame
• Roof opening panel drain hoses
• Roof opening panel lifter assemblies
• Roof opening panel water trough
• Roof opening panel rear trough guides
• Roof opening panel air deflector assembly
• Roof opening panel seal
• Roof opening panel shield

• Smart junction box (SJB) circuit breaker 47 (30A)
• Circuitry
• Accessory delay relay
• Roof opening panel switch

• The roof opening panel does not open or close - one direction only

• Circuitry
• Roof opening panel switch
• Roof opening panel motor assembly

• Go To Pinpoint Test E .

PINPOINT TEST E: THE ROOF OPENING PANEL DOES NOT OPEN OR CLOSE Test Step Result / Action to Take E1 CHECK THE ROOF OPENING PANEL LIFTER ASSEMBLIES FOR OBSTRUCTIONS OR DAMAGE

• Check the roof opening panel lifter assemblies for obstructions and damage.
• Are the roof opening panel lifter assemblies OK?

Yes GO to E2 . No REMOVE all obstructions and REPAIR any damage. If lifter assemblies cannot be repaired, INSTALL a new roof opening panel frame. REFER to Roof Opening Panel Frame in this section. TEST the system for normal operation. E2 CHECK THE ROOF OPENING PANEL WATER TROUGH AND REAR TROUGH GUIDES

• Check the water roof opening panel water trough and rear trough guides for any loose obstructions.
• Are the roof opening panel water trough and rear trough guides installed securely and free from obstructions?

Yes GO to E3 . No REMOVE all obstructions from the roof opening panel water trough and install securely. SECURE the rear trough guides or INSTALL new roof opening panel rear trough guides if damaged. REFER to Roof Opening Panel Rear Trough Guide in this section. TEST the system for normal operation. E3 VERIFY THE ROOF OPENING PANEL ADJUSTMENT

• Verify the roof opening panel is adjusted correctly.
• Is the roof opening panel adjusted correctly?

Yes GO to E4 . No ADJUST the roof opening panel. REFER to Roof Opening Panel Alignment - Horizontal Adjustment and Roof Opening Panel Alignment - Height Adjustment in this section. TEST the system for normal operation. E4 CHECK THE ROOF OPENING PANEL MOTOR/MODULE FOR INITIALIZATION

NOTE: The roof opening panel motor initialization procedure must be done when repairs are carried out on any part of the roof opening panel assembly, including whenever the roof opening panel motor/module has been removed from the roof opening panel assembly, a new roof opening panel motor/module has been installed or when a new roof opening panel assembly has been installed. Refer to Roof Opening Panel Motor Initialization in this section.
• Carry out the Roof Opening Panel Motor Initialization procedure. Refer to Roof Opening Panel Motor Initialization in this section.
• If the concern still present?

Yes GO to E5 . No The system is operating correctly. The roof opening panel motor/module was uninitialized. E5 CHECK THE POWER WINDOWS

• Key in ON position.
• Verify the power windows operate.
• Do the power windows operate?

Yes GO to E6 . No REFER to Section 501-11 to diagnose the accessory delay relay circuit. E6 CHECK THE ROOF OPENING PANEL SWITCH

• Carry out the roof opening panel switch component test. Refer to Wiring Diagrams Cell 149 for schematic and connector information.
• Did the roof opening panel switch pass the component test?

Yes GO to E7 . No INSTALL a new roof opening panel switch. TEST the system for normal operation. E7 CHECK CIRCUIT CBP47 (GN/BU) FOR VOLTAGE

• Key in OFF position.
• Disconnect: Roof Opening Panel Motor/Module C922.
• Key in ON position.
• Measure the voltage between roof opening panel motor/module C922-4, circuit CBP47 (GN/BU), harness side and ground.
• Is the voltage greater than 9 volts but less than 16 volts?

Yes GO to E8 . No VERIFY the smart junction box (SJB) circuit breaker 47 (30A) is OK. If OK, REPAIR the circuit. TEST the system for normal operation. E8 CHECK CIRCUIT GD143 (BK/VT) FOR AN OPEN

• Key in OFF position.
• Measure the resistance between roof opening panel motor/module C922-3, circuit GD143 (BK/VT), harness side and ground.
• Is the resistance less than 5 ohms?

Yes GO to E9 . No REPAIR the circuit. TEST the system for normal operation. E9 CHECK CIRCUITS CPR37 (YE/GY), CPR39 (VT/WH) AND CPR40 (YE/OG) FOR AN OPEN

• Disconnect: Roof Opening Panel Switch C930.
• Measure the resistance between the roof opening panel motor/module C922-1, circuit CPR40 (YE/OG), harness side and roof opening panel switch C930-8, circuit CPR40 (YE/OG), harness side. Measure the resistance between roof opening panel motor/module C922-2, circuit CPR39 (VT/WH), harness side and roof opening panel switch C930-11, circuit CPR39 (VT/WH), harness side. Measure the resistance between roof opening panel motor/module C922-5, circuit CPR37 (YE/GY), harness side and roof opening panel switch C930-14, circuit CPR37 (YE/GY), harness side.
• Are the resistances less than 5 ohms?

Yes GO to E10 . No REPAIR the circuit. TEST the system for normal operation. E10 CHECK FOR CORRECT ROOF OPENING PANEL MOTOR/MODULE OPERATION

• Disconnect the roof opening panel motor/module connectors.
• Check for:
  • corrosion.
  • pushed-out pins.
• Connect all roof opening panel motor/module connectors and make sure they seat correctly.
• Operate the system and verify that the concern is still present.
• Is the concern still present?

Yes CHECK the jumper harness between the vehicle harness and the roof opening panel for open or shorted circuits. If the jumper harness is not OK, INSTALL a new jumper harness between the vehicle harness to the roof opening panel motor/module. Otherwise, INSTALL a new roof opening panel module/motor. REFER to Roof Opening Panel Motor in this section. TEST the system for normal operation. No The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. TEST the system for normal operation.

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You can probably fill the new cooler with liquid and measure the amount it takes, then include that amount in total volume. For instance, when you measure motor oil to a crankcase, some include the 1/2 quart or so in the oil filter to the total volume needed. I would not see any problem with adding a second cooler. There are some trans pans that have cooling fins or cooling tubes in them. It might accomplish what you want.

IF you have this trailer with this vehicle before the problem will probably in the wiring in the plug. Loose broken or corroded away. Check condition of the light sockets and earth points and wiring back to the plug

A thought try rebalanceing your tires if this was helpful please leve good feedback

Heater box blend door is probaly not (Closing)

This is simple the air suspension air bags are leaking, they last about 75-100,00 miles on this model, even less if driven on harsh roads or off road.