2003 Ford Expedition - Page 3 - Answered Questions & Fixed issues

You need to find out why you have low oil pressure. It is normal that as engine rpm's increase, the oil pressure will rise- the oil pump is moving oil faster. Even though your light goes out, you could still have critically low oil pressure. There should be sufficient pressure at idle to keep the light off. The light will come on when your oil pressure is almost nil- I believe for some it's as low as 8 psi. Normally, oil pressure at idle is specified anywhere from 15 to 40 psi. You would have to check specifications for your Expedition. To verify oil pressure, hook up a mechanical gauge at the oil pressure sending unit on the engine block. Check with a local shop. The causes run from easy, simple to budget busting ruin. Low oil level, wrong grade oil, real old oil, oil leaks, internal oil leaks, worn oil pump, worn crankshaft bearings. It was pretty common on older very high mileage cars to have a fluttering oil light at stops and idle. It was time for a rebuild, or time to look for another car.

Do you know how to test automotive electrical circuits ? Using a volt meter an wiring diagram to locate problems ? Free wiring diagrams here http://www.bbbind.com/free_tsb.html Enter vehicle info. year ,make , model and engine size . Under system click on engine , under subsystem click starting . Click the search button then the blue link . The buzzing sound you hear may be the starter relay , do you know what a relay is ? Behind the right side kick panel , this is where the front passengers right foot would be next to . Pull the plastic cover and behind is the central junction box. You can check for B+ voltage where the relay plugs in . VEHICLE RELAYS Operation Diagnosis Electric Testing Techniques You Need to Know Ford F150 5 4 No Start No Crank No Communications Codes U1900 U2023

best way to find out what could have happened is to have the OBD codes read and see if any codes come up

You need to put a scanner on the computer and read the codes, then repair the codes called for and using the scanner clear the codes and you will be ok. The button on the message center doesn't reset the computer it just clears the code from the screen.

Your missing something's G-404 has nothing to do with it ! Seats - Third Row The third row seat:

• is three-passenger seat.
• a 60/40 bench seat.
• folds down for more cargo area.
• has optional power fold down seats.

Third Row Power-Fold Seat CAUTION: To prevent possible damage to the third row seat or the safety belts, make sure that the safety belts are not fastened when moving the seat to the load floor position. CAUTION: Make sure that no objects such as books, purses or briefcases are on the floor in front of the third row seats or on the seat cushion before lowering the backrest(s). The third row power-fold seat consists of the following electrical components:

• right third row seat relay.
• left third row seat relay.
• right power-fold seat motor.
• left power-fold seat motor.
• right front third row seat switch (if equipped).
• left front third row seat switch (if equipped).
• right rear third row seat switch.
• left rear third row seat switch.

For the third row power-fold seat to operate, a shared ground is supplied by the body security module (BSM) to both of the power-fold seat relays, enabling the seats to then be moved by pressing one of the third row power-fold seat switches. The third row power-fold seat operates only when the vehicle is in PARK and the liftgate glass, liftgate door or any entry door must be open. The third row power-fold seat motors transfer movement to a drive gear assembly to raise and lower the seat backrest. The power-fold seat motors rotate a short drive cable which is connected to the drive gear assembly. The relay's are located in Aux. relay box #2

Check the actuator motor on the heater if controls the doors that direct the heat and ac. It is an easy replacement part and as to the cost I wouldn't know but you can check price on line at autozone.

Hi Ron. I would take it to a mechanic that you trust. Its very possible that you have a bad BCM, ( Body Control Module). Hope this helps.

If your saying the starter motor won't crank, make sure the battery has a full charge. Note the starter components picture, If that is what you have, I'd check the starter relay switch. It appears to be underhood--firewall or rear of fender lining, passenger side. See the two large lugs, that should be battery voltage to and from relay switch. The smaller terminal should be feed from crank position of ignition switch. In the past on different makes and models I have used a large screwdriver to short between the two large posts at the relay switch, to see if starter motor will crank. If you try this, make sure tranny is in park or neutral and parking brake is set. I may be coming in the back door to diagnose, but, It should lead to same place.

You will have to change the radio it is all in one peace

Could be a little thing's, security system issue, fuel issue or a EGR or Throttle senser issue.

A vague feeling from the front isn't good news and might be anything even something at the rear so check everything - if it is possible for it to wear it should have a good shake or be tested with a prybar. I am wondering if the wheel alignment has been checked since the front overhaul... One common but frequently overlooked thing that causes a car to be unhappy on the road is tyre mismatch - this usually manifests as a vague feeling with the car seeming to choose it's own line depending on the road surface and hopping around a little especially when driving along white road markings or the seams of road repairs.

Check your battery connections - where the cables connect to the battery posts AND where the cables connect to the starter/main power feed and where the ground cable connects to the engine and/or frame. A poor or corroded connection can cause intermittent problems and poor charging performance.

Before you change lock check wires in a door!!!

What's missing ? You need to test to see if spark or fuel is missing to find what system needs more trouble shooting . Ignition or the fuel system . No Start Diagnostic Basics EricTheCarGuy

YES! You talking about the brake pedal switch? Needs to be attached correctly.Get what you need from FORD parts at a dealer. don-ohio

Are you confusing the compressor clutch with the fan motor in the vehicle? Please clarify.

Inside your fuse box on the inside of the protective cover, there should be a diagram of location. There may also be relays in this box that control the lights. If this is not the problem, check for broken wires or connectors going to the lights. If this checks ok start looking at the switch.

Did you try moving the shifter to neutral ? worn park neutral safety switch . Wiggle shifter !

There is a diagram on the under hood emission sticker required by the federal government on every vehicle sold.

It is located behind the rear cargo area trim panel.