20 Most Recent 2003 Mercury Mountaineer - Page 3 Questions & Answers

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03 Mountaineer

When you say tire rod, do you mean half shaft? Need more information and clarification to help!!
9/2/2016 5:35:28 PM • 2003 Mercury... • Answered on Sep 02, 2016
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What is a p1450 code is on a 03 Mercury mountaineer truck and code p0133 is

P0133 Is an O2 sensor CKT Slow response (Bank 1 Sensor1). I don't have the P1450.
9/1/2016 4:03:06 PM • 2003 Mercury... • Answered on Sep 01, 2016
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2003 merc mountaineer has clunking sound when slowing down or stopping.

Have the brakes checked.
8/18/2016 11:05:36 PM • 2003 Mercury... • Answered on Aug 18, 2016
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I need to replace the sunroof glass of a 2003 mercury mountaineer

Here's the link and I'm sure you will get the solution of your problem Mercury Mountaineer 2002 2005 Factory Service SHop repair manual Download
7/17/2016 2:51:25 PM • 2003 Mercury... • Answered on Jul 17, 2016
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My 03 mercury mountaineer truck is shaking and cutting off

2 possible reasons come to mind problem injectors---dirty tips , low fuel pressures-wiring faulty--ECM or ECM connections electronic systems --water in distributor cap ( if fitted ) moisture on HT leads or coils -ignition control module ---cam /crank position wiring ----firing order incorrect try running the fault codes to get a better idea of the causes of the problems
6/30/2016 9:49:01 PM • 2003 Mercury... • Answered on Jun 30, 2016
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2003 mercury mountaineer keep blow fuse 41 and will not trune over

F1.41 15 PCM power diode, PCM power relay, Vapor management valve, Heated oxygen sensors (HO2S), Electr. Vacuum Regulator (EVR) solenoid valve, Evaporative emission (EVAP) canister vent valve (9F945) one of these above mentioned components is shorted to ground causing that fuse to blow , Check the O2 sensor wiring to see if it is melted on exhaust pipe or manifold . Go youtube an check out how to find a short in an automotive electrical circuit ! These Finding active short
4/28/2016 12:59:37 PM • 2003 Mercury... • Answered on Apr 28, 2016
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Tail lights and dash lights went out

3/26/2016 10:06:52 AM • 2003 Mercury... • Answered on Mar 26, 2016
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Power windows stopped working on '03 mountianeer

There may be a relay or perhaps a switch to replace in the panel that houses the window switches on the driver's door. That panel comes off by prying it up from around the switches. You will see all the wires and perhaps the relay to replace when you pull it away from the door itself. The switches should simply unplug and you can replace whatever looks burned out.
3/21/2016 5:13:31 PM • 2003 Mercury... • Answered on Mar 21, 2016
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My door locks and automatic seat feature stopped working and it says data error

The first place to start is check for DTC'S - diagnostic trouble codes in the instrument cluster , vehicle security module , seat control module etc... see if a factory or a professional grade scan tool will communicate with the vehicles control module's . Your vehicle can have up to ten or more computers - control modules an they all communicate on a serial data network . A data error message is indicative of a network problem .your best bet is to take your vehicle to a ASE certified repair facility .
11/18/2015 12:11:09 PM • 2003 Mercury... • Answered on Nov 18, 2015
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My 2003 Mercury Mountaineer is making a loud metal knocking sound when I drive it. The more I drive the louder it gets. What could this be

If the noise is coming from engine it is the valves tapping on the heads
10/21/2015 2:21:34 AM • 2003 Mercury... • Answered on Oct 21, 2015
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How do I decrease idle speed?

The higher idle speed is part of the "cold start" sequence. It is controlled by the thermostat and a temperature sensor. You may need to change them both for faster action.
9/26/2015 3:06:24 PM • 2003 Mercury... • Answered on Sep 26, 2015
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How do you put transmission fluid in

If newer car can b hard. Best to go partstore and they will assist
9/23/2015 6:16:36 PM • 2003 Mercury... • Answered on Sep 23, 2015
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Where is the fuse for the brake lights?

under your dashboards you can see a fuse box which you can see a diagram also for the fuse positions
9/18/2015 2:01:52 PM • 2003 Mercury... • Answered on Sep 18, 2015
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A/c quit suddenly

A few things could have caused this. The first is if you developed a leak and your pressure is low, your A/C compressor clutch will not engage which of course with no freon and the compressor not working....No A/C. I would first check a fuse and a relay. The fuse for the A/C Clutch contact is loacted in the passenger compartment fuse panel (picture of location as well as fuse layout diagram below) the fue you are looking for will be in the number 10 position and should be a 10 amp fuse. The second is the A/C Clutch relay. That is located in the power distribution box located in the engine compartment (picture of location below) that relay is in the number 52 position (picture if layout in the next picture). Before i replaced the relay I would make sure your pressure is good as it will not engage if the pressure is low. That's where I would start. There could be many other things to look at such as your pressure switches or a clog and I could go on but this is where I would start. I hope this helps you and good luck. Here's your pictures:


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8/23/2015 12:58:29 AM • 2003 Mercury... • Answered on Aug 23, 2015
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2003 mountaineer dies while coming to a stop but will restart

Could be several things. But to start, check or replace the air filter. Use brake clean to clean the MAF sensor, just spray it, both sides. (between the filter and throttle body). And clean the throttle body on the inside( use a toothbrush and clean the back side of the plate and where is sits). Check for vacuum leaks.
7/30/2015 12:14:44 AM • 2003 Mercury... • Answered on Jul 30, 2015
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