2003 Ford Expedition - Answered Questions & Fixed issues

"The hot water check valve line runs into the firewall..it goes to the port closet to the passenger side. The main vacuum hose from the engine runs across to the canister behind the battery. There are two check valves in the main line. 1st check valve is close to the engine and its just a straight valve and the other check valve is close by the computer and has a tee built in it. The tee part runs down to the only and last port running into the firewall and there you have. Air and heat coming out the vents or defrost when you command"
Someone else did the hard work for me. Good luck.

2003 Ford... | Answered on Dec 28, 2019 | 226 views

sounds like water in gas. add gas line antifreeze. 2 bottleshould do it.

2003 Ford... | Answered on Dec 24, 2019 | 920 views

check the seliniod under the shifter mine was faulty so i got an electrician to by pass till part came in

2003 Ford... | Answered on Dec 20, 2019 | 1,354 views

Tengo una trocka Ford expedition 2003 le prende la lis de low oil pressure le puse dos botellas de oil y ahora empeso de nuevo a prender esa misma lus espero pronto me den respuesta a mi problema gracias

2003 Ford... | Answered on Jun 10, 2019 | 710 views

Loosen all of the nuts on the tire while it's still flat on the ground before you Jack it up Do not leave any boats Tighten while is on the ground you can actually bring them all way to the end of the stud before you jack it up


2003 Ford... | Answered on Mar 09, 2019 | 45 views

i know this is an old post but this is happening to my truck to, ford expedition 2003, after swapping the relays i can get it to work but now is happening more often about once a week, sometimes i have to swamp several times until it starts. Any suggestions?

2003 Ford... | Answered on Sep 30, 2019 | 808 views

Could it be the pedal extension malfunction....The button where you can bring the gas pedal closer? Just guessing

2003 Ford... | Answered on Jan 20, 2019 | 74 views

Said safety switch would normally be positioned in the edge of the body seam where the gate can close it. Sounds like it just needs adjusted out closer to the gate. If no adjustment, put a washer of some kind under it. Washer can be anything as long as the switch body is touching metal to complete the circuit when you push it back in.

2003 Ford... | Answered on Nov 05, 2018 | 273 views

I found this link online. Hopefully it helps you out. :)


2003 Ford... | Answered on Jan 05, 2019 | 555 views

If you're finding it difficult to service/repair your car, get one of those
online manuals. You'll not have to wait for others to answer, or rely on mechanics and all. Plus i know a website that has very good manuals online, without expiry i.e. for lifetime. www.reliable-store.com

2003 Ford... | Answered on Mar 08, 2018 | 155 views

May have stripped out in that direction .

2003 Ford... | Answered on Mar 02, 2018 | 526 views

run quality injector through the system
have no1 injector repaired
it is most probable an injector problem

2003 Ford... | Answered on Feb 12, 2018 | 119 views

Any idea what might be draining the battery ? That would be guessing , doing a elecrical test, parasitic drain or draw . Checking for current flow over the fuse's till you find to much current draw is the easiest way . We test , not guess . Guessing cause the replacement of parts that don't need to be replaced .
Improved Methods to Find Parasitic Draw Battery Drains Overnight
The BEST Way TO Perform Parasitic Draw Test
How To Perform Parasitic Draw Test EricTheCarGuy

2003 Ford... | Answered on Jan 07, 2018 | 236 views

sounds like a faulty instrument cluster

2003 Ford... | Answered on Jan 06, 2018 | 1,162 views

You will need a circuit diagram in order to understand how the system works and whether digital electronics and black boxes play any part - as is often the case with later model vehicles.

Repairing a fault without knowing how something works requires lots of luck...

2003 Ford... | Answered on Dec 13, 2017 | 101 views

By 2003 most air-con systems had considerable electronic control and your problem might be caused by a malfunction there, wiring problems, compressor clutch problems or maybe there is a leak and the refrigerant pressure has already fallen to the point where the system is ceasing to work depending on temperature.

2003 Ford... | Answered on Dec 10, 2017 | 57 views

Lack of power because of the vacuum leak wher the line is disconnected from. Start the engine and with hood raised, listen for the vacuum hiss fron it sucking air in and hook the loose line to that fitting where you hear the leak.

2003 Ford... | Answered on Nov 29, 2017 | 99 views

Not finding what you are looking for?
2003 Ford Expedition Logo

2,763 questions posted

Ask a Question

Usually answered in minutes!

Popular Products

2000 Ford Expedition
2000 Ford Expedition

2,144 Questions

1999 Ford Expedition
1999 Ford Expedition

1,790 Questions

1998 Ford Expedition
1998 Ford Expedition

1,587 Questions

2001 Ford Expedition
2001 Ford Expedition

1,131 Questions

1997 Ford Expedition
1997 Ford Expedition

1,019 Questions

Top Ford Experts


Level 3 Expert

85223 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

gerry bissi

Level 3 Expert

4388 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides