20 Most Recent 2003 Ford Mustang - Page 10 Questions & Answers

Go to this FREE Ford website to view or download the owners manual for your vehicle. The fuse block information starts on page 118.

2003 Ford... | Answered on Mar 30, 2011

suggest 1st that you check your battery connections,next,have your altenator checked,and battery,for FREE,at any auto zone or advance autoparts store.does the engine turn over slow? like dead battery? if so,we're headed in the right direction.your issue is with bad battery,bad battery,broken altenator belt. or maybe a loose belt. have these checked 1st and thank you for choosing fixya.com

2003 Ford... | Answered on Mar 29, 2011

float may be sticking some, may get you some carbarator cleaner and spray it doun real good inside and out. Also need to check for vacume leak's good luck '

2003 Ford... | Answered on Mar 26, 2011


2003 Ford... | Answered on Mar 22, 2011

It sounds like a door ajar switch is broken. The door switches are located in the door on the latch mechanism. To get to it you will need to remove the door trim panel to gain access to the door latch.

The switch is available for around $20 - autozone part number SW1979 or SW3688

2003 Ford... | Answered on Mar 19, 2011

two of the bolt holes are close together allowing it to go back one way.

2003 Ford... | Answered on Mar 18, 2011

Hi hope I can help.
1.Fist change the spark plug. this is the main cause of most misfires,
2.If that don't work switch your coils. (remove one of your other coils and switch it with the #3 coil. If the misfire moves to the other cylinder then you know you have a bad coil and it need to be replaced.
3.preform a compression test.
4 Also check your fuel pressure.
Hope this helps
Please leave feed back
Thank you urnuts73@ FixYa

2003 Ford... | Answered on Mar 05, 2011


2003 Ford... | Answered on Mar 01, 2011

Your best bet, is to pay the big bucks
for the Ford Wiring Diagrams and the
Powertrain Control/Emissions Diagnosis

You can't expect people to tell you
what everything is.

Helm.Com-for manuals

2003 Ford... | Answered on Feb 26, 2011

Permatex makes a rear window defroster repair kit that you can get from most auto parts stores.

2003 Ford... | Answered on Feb 24, 2011

make sure that your light switch is not on the on position turn it back and forth

2003 Ford... | Answered on Feb 23, 2011

4.6L Engine - replacing thermostat

CAUTION Never remove the radiator cap under any conditions while the engine is running, or while hot. Failure to heed this caution could result in cooling system damage or severe personal injury.
  1. Drain the engine cooling system until the coolant level is below the thermostat.
  2. Detach the lower radiator hose, the return hose and the degas bottle hose from the thermostat housing.
  3. Remove the two mounting bolts, then remove the thermostat housing.
  4. Remove the O-ring and thermostat from the housing. Discard the O-ring.

  5. archaeology_16.jpg
Figure - exploded view of thermostat and Housing - 4.6L engine

To install:

NOTE To prevent installing the thermostat with an incorrect orientation, the housing contains a positioning slot. Install the thermostat so that the bridge part protrudes into the housing, not into the intake manifold.
  1. Position the thermostat and a new O-ring on the housing, then install the housing.
  2. Install the two mounting bolts, and alternately tighten them to:
    1. 4.6L SOHC engines 15-22 ft. lbs. (20-30 Nm).
    2. 4.6L DOHC engines 89 inch lbs. (10 Nm).

  3. Connect the lower radiator hose, the return hose and the degas bottle hose to the housing.
  4. Fill the cooling system, then start the engine and check for leaks.
  5. If necessary, top off the cooling system overflow reservoir.

  1. Drain the engine cooling system.
  2. Remove the air cleaner outlet pipe.
  3. Remove the 2 thermostat housing bolts and separate the lower and upper thermostat housings.
    1. Discard the thermostat O-ring seal and remove the thermostat.

To install:

NOTE Lubricate the O-ring seal with clean engine coolant.
  1. Install a new thermostat with the smaller plate facing upward and the O-ring seal.
  2. Position the lower and upper thermostat housings together and install the 2 bolts. Tighten to 89 inch lbs. (10 Nm).
  3. Install the air cleaner outlet pipe.
  4. Fill and bleed the cooling system.

2003 Ford... | Answered on Feb 20, 2011

fuel pumps only run for a few seconds when the key is first turned on, then runs all the time after car starts, need to check fuel pressure at the fuel rail, or could be electrical, also check the fuel pump safety switch the owners manual should tell you where it is located

2003 Ford... | Answered on Feb 16, 2011

ford has a saftey in which if your brake switch is bad, brake light fuse is bad it wont let you shift out of park basically what it tells you if you have no brakelights, also in order to shift the car the brake pedal must be depressed

2003 Ford... | Answered on Feb 12, 2011

If the fluid is leaking out than you will ruin the pump by driving the vehicle.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

2003 Ford... | Answered on Feb 11, 2011

You will need to get your computer in your car scanned with a (On-Board Diagnostic) OBD II Scanner in order to determine what Trouble Code is stored in your computer. Most AutoZone or O'Reilly Auto Parts stores will do this for you at no charge, retrieving the code will put you in the right direction to solving the problem.

2003 Ford... | Answered on Feb 05, 2011

the engine is misfiring under a load, the most common cause is a bad spark plug , bad spark plug wire or a bad ignition coil. in any case a good old fashioned tune up should take care of it......HAVE FUN

2003 Ford... | Answered on Feb 03, 2011

have it plugged into to see what the code is. the computer is telling you theres a problem in one of the sensors.. most auto parts stores offer this for free. hope this helps

2003 Ford... | Answered on Feb 02, 2011

you may have a loose hose, a hole in the hose,or your heater core has a hole.

the big brain

2003 Ford... | Answered on Jan 19, 2011

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