20 Most Recent 2003 Mercury Mountaineer Questions & Answers

Front:? Axle half shaft needs replacing.

Fuses?

Fuse box location and diagrams: Mercury Mountaineer (2002 ...

YouTube https://www.youtube.com > watch 2:55 See more on our website: https://fuse-box.info/mercury/mercury-mountaineer-2002-2005-fuses-and-relaysFuse box diagram (location and ... YouTube · Fuse Box Info · Dec 30, 2018

Mercury Mountaineer (2002-2005) fuses and relays

Fuse-Box.info https://fuse-box.info > mercury > mercury-mountainee... The fuse box is located under the instrument panel on the driver's side. The location of the fuses in the passenger compartment: Mercury Mountaineer (2002-2005 ...

Clean the Throttle Body and Mass Air Flow Sensor. Also check for DTCs (diagnostic trouble codes). ..

Strange, I am sure I answered this on the day you posted it. You don't normally have to remove the dash. They are behind the glove compartment and centre console section. https://www.google.com/search?q=2003+mercury+mountaineer+blend+door+actuator+replacement ..

Does the radio turn off if the passenger door is opened?

Question edited for clarity and spelling. Question moved to make model category. Same as Ford Explorer. Click the link and also click on the images tab. https://www.google.com/search?q=2003+Mercury+Mountaineer+Vacuum+hose+diagram ..

You need a good person with a pro grade scan tool computer. That should give a hint as it is likely to be sensor related. Change the fuel filter anyway. Where is the fuel filter located on a 2003 Mercury Mountaineer? It's under the vehicle in the fuel line from the tank to the engine.

where is the fuel filter located - 2003 Mercury Mountaineer

Video https://www.google.com/search?q=2003+Mercury+Mountaineer%2C+replace+fuel+filter ..

Have you checked All eight cylinders have lost spark or just 1 or 2 of them? When checking only remove ONE plug at a time so you don't mess up the firing order. If all 8 have gone off together it could possibly be an ignition module problem. This module triggers each coil in the correct order. I would suggest you get the vehicle plugged into a diagnostic system or an OBD2 scanner to check for trouble codes. Trouble codes can give clues to the problem. If you have to pay for the scan get prices at 4 or 5 different places as the prices charged can be VERY different!

put a nut on them and smack with a brass mallet they are press fit

you pay a dealer or other type or repair shop do it not a DIY task as it had to be realigned after repairs are done

If you want it to be right take it to a machinest and have them check the crank new piston and rings and shells, as they will ballance everything up properly, you could do it yourself but as they have all the right tools you could never get it done aswell as thay could do it, all the best.

The car security system has to recognise the code the transponder is programmed to. The transponder is a chip about the size of a short rice grain usually embedded in the plastic of the key or sometimes is part of a fob. You need the help of a good auto locksmith to recode the system and the keys or the dealer...

Fuel tanks usually aren't a regular shape but are designed to fit unusual and difficult spaces and to make matters worse the filler pipe rarely enters the tank in the most sensible place that is the highest point - in fact the fuel filler pipe often enters the tank in the worst place which is near the bottom or at least well below the fuel level. Adding fuel therefore creates a pressure above the rising fuel that soon forces a bubble back through the filler pipe and a pair of wet shoes is the result... Manufacturers recognise this problem and usually provide a vent pipe to ensure mess-free filling. This is generally a small bore nylon or steel pipe from the highest point on the fuel tank leading to somewhere high in the filler neck so when the fuel cap is fitted it still becomes a sealed unit. Some manufacturers have provided a premium solution and placed the vent pipe internally. When wet shoes result from filling the tank it means the vent for whatever reason isn't there or it is blocked. This sometimes happens when the tank has been out and refitted carelessly.

It could be a bad temperature sensor producing a false warning. Also, check the oil....sometimes low oil levels could cause the overheat light to come on. Next, have it check out by a mechanic

bad door switch. See this posthttp://ricksfreeautorepairadvice.com/dome-light-stays-on/The BCM sees it as a door opening and sets off the alarmA bad door switch can malfunction ANY time. The alarm is looking for a door switch or hood switch opening. That's where you start--with an intermittent switch

go to your local parts store and buy a can of PB BLASTER lubricant then open each door and spray the latch assembley really good then close and open the door 10 to 15 times. do this with each door. the door ajar light switch is located in the door latch assembley and cannot be seen so soak the latch assembleys really good so lube reaches the switch. these switches sometimes get stuck but this usually frees up the switch

Try resetting the alarm, using the instructions given at the link below. I'll also copy the text here.

1. Insert the ignition/door key in the door lock on the driver's- side door of your Mountaineer.
2. Turn the key to the lock position.
3. Turn your key to the unlock position.
4. Turn your key to the lock position.
5. Turn your key to the unlock position. Your alarm is now disabled. If your key fob works, you can also press the unlock or alarm-disable button on the fob.
6. Start the Mountaineer's engine and allow the vehicle to run for at least 10 minutes. This will allow the alarm to relearn the default settings. You must make sure that you have disabled the alarm first, however, before you attempt to start the vehicle, so that the alarm will reset itself.

http://www.ehow.com/how_5978302_reset-mercury-mountaineer-alarm.html
If these instructions don't work, you can try resetting the car's computer by unplugging the battery for half an hour. However, that will reset the keyless entry code, as you can see in the fixya article I link to at the bottom http://www.fixya.com/cars/t4755856-we_bought_it_used_and_we_dont_know_the_k

Your Service Engine Soon light has nothing to do with reminding you to change your oil. The light is controlled by the ECM (Computer) in your vehicle. It monitors various sensors in your engine and compares them to variables or programs that is in its memory. When something is not registering correctly or is outside of its parameters it will turn on a MIL(Malfunction Indicator Light)or in your case a Service Engine Soon light. You will need a OBD II ( On Board Diagnostic) reader or scanner to hook up to your diagnostic port under your driver's side footwell to read what code the ECM is putting out. Than with the code the mechanic can look up the code to see what part is sending a malfunctioning. The scanner can also read and erase the code too. You can have your code pulled up with a OBD II scanner for free from any AutoZone store.

1. Raise the vehicle so you can safely get underneath. The starter is typically located under the engine near the transmission mating surface. DON'T RELY ON A CHEAP JACK! Use drive on ramps or jack stands safely positioned on the frame, and lock the parking brake AND chock the rear wheels to keep it from rolling.
2. Disconnect the negative cable from the battery to remove voltage from the system. Don't want to arc yourself to the frame when you disconnect the cables from the starter!
3. Locate the starter motor and remove the nut that holds the starter cable in place, remove the cable and position it out of the way.
4. Disconnect the solenoid connector...the smaller of the two wires going to the starter.
5. Remove the bolts holding the starter to the mount...usually 2, sometimes 3.
6. Remove the old starter.
7. Carefully compare the old to the new...make sure they match.
8. Install the new starter...thread all the mounting bolts in hand tight, then torque them to the specification listed in the service manual.
9. Reconnect the two wires you removed earlier.
10. Reconnect the battery.
That should do it! Hope this helps...

My personal suggestion would be to go for these repair catalogs from www.reliable-store.com instead. much better info on all vehicles, complete details, and they also have live assistance feature