Question about 2003 Mercury Mountaineer

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I have a 2003 Mercury Mountaineer the airbag light stays on how do I fix this problem

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  • Expert
  • 462 Answers

Airbag sensor dealer needs to do a check sorry could activate for no reason if not repaired by someone certified

Posted on Jan 17, 2015

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Posted on Jan 02, 2017

VtToolMan
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SOURCE: airbag light on what does that mean

It means that your airbag system is not fully functioning and you need to have the dealer check it out. Whenever the airbag light stays illuminated after starting the vehicle, it means that there might be a problem with the air bag system and a check up is needed ASAP to make sure the system will operate properly in the event of an accident. It could be a faulty sensor, or it could be that a wire or connection is loose, etc., in any case, the dealer will need to check the airbag system to determine what the problem is.

I had a situation where an stereo installer had probed the wires in the airbag system and that caused the system to become non-functional, due to having voltage applied to the airbag wiring where it shouldn't have any voltage. It was an expensive fix, as he'd actually stripped the wires bare and he crossed several. Cost him a bunch to replace the wiring harness on my new vehicle.

Posted on Jul 13, 2009

  • 1 Answer

SOURCE: 2003 Mercury Mountaineer Problem: Power windows

Power windows stopped working. Have checked the fuses and they are fine. All other systems are functioning. Any thoughts?

Posted on Oct 11, 2009

rutherford_m
  • 63 Answers

SOURCE: how do you change the spark plugs on a 2003

  1. Most of the 4.6 Litre engines have some form of plastic cover, mine was held in place with two 11mm nuts at the front and press-fit connection at the back. Remove this cover to gain access to the spark plugs. You may need to disconnect the air hose going to the throttle body and some additional vacuum hose connections. Mark them with masking tape and numbers if you have any question about re-attaching them correctly. Along each side of the intake manifold you will see 4 round coils held in place with a 7mm bolt on each one. Remove the 7mm bolts from each coil. Each of these coils has a connector that will be disconnected by pinching the connector to release the catch and pulling gently. Do not worry about marking them unless the wire harness has been modified. The factory wire harness keeps the connectors next to the correct coil.
  2. Remove each coil and plug connector by gently turning the unit to break the rubber loose from the manifold, then pulling up on the coil/plug connector as a unit. Do not be alarmed if the rubber boot cover comes off, you can easily reattach it to the coil. Once the coils and rubber boots are removed, use your compressed air source or vacuum to remove as much debris from around the spark plugs as possible. Warning: Wear Eye Protection when using compressed air.
  3. Remove the spark plugs using the 5/8" spark plug socket, swivel, extension and ratchet. Some engine installations may require additional extensions or swivels to get the back plugs removed. It normally takes just an 1/8 turn to break the plugs loose and then about 4-6 full turns to fully remove the spark plugs. If the plug does not come out with the socket, use the magnetic pickup tool to pull the plug out. You will not be able to reach it with your fingers.
  4. Using the feeler gauges gap your new spark plugs to the correct gap for your vehicle. A typical spark plug gap for this engine is .054 inch. With the plugs gapped, fit the rubber fuel line to the top of a spark plug and then apply a small dab of anti-seize compound to the plug threads. Work the anti-seize into the threads a little bit and then insert the plug into the engine. The rubber fuel line will prevent you from cross-threading the spark plug and you should be able to turn the plug in about 3/4 turn or more easily. If not, remove the plug and make sure that it has not picked up any debris in the threads. If so, clear it out and try again. Once you have all of the plugs started, use the 5/8" socket to tighten them just 1/8 turn past their stopping point. Do not over tighten as this is the leading cause for plug-blowout with this engine series.
  5. With all of the spark plugs back in, you can then proceed to replace the coil/plug connectors. Replace the 7mm bolts for each coil and tighten them snugly but do not over tighten. With the bolts tight, the coil/plug connector should still rotate slightly. Reconnect the electrical connectors for each coil by gently pushing them in place until they click. They are indexed and will fit only in one direction.
    Reconnect the air hose to the throttle body and any vacuum lines that were removed. Replace the plastic engine cover and fasten it in place. That's it, your done.

Posted on Apr 28, 2010

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1 Answer

Why is my light flashing airbag on my 2003 mercury mountaineer 10 times


There is a fault in the airbag system if you have a good scan tool that will read air bag codes if not you might have to take it to a shop and have em pull the codes

Sep 10, 2016 | 2003 Mercury Mountaineer

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My airbag light on my 2002 mercury mountaineer continiously stays illuminated any reason why and how to fix it?


This is probably a seat sensor but it could be the pretensioners or the air bag. When the vehicle is started, there is a sensor test that is run on the SRS (air bag) and if it finds something wrong, the light comes on. Given that this is a life safety device and there are hazardous parts in it, you should take it to a dealer to have it worked on.

Mar 24, 2014 | 2002 Mercury Mountaineer

1 Answer

2003 mercury mountaineer check charging system won't start


How can you decide if it is worth fixing if you have no idea what is wrong, it could be major or minor issue. Have it diagnosed before you decide. If it is not running the value of the truck is zip.

Jan 14, 2014 | 2003 Mercury Mountaineer

1 Answer

Airbag light stays on


A fault has occurred and switched the light on, it will need to be switch off with a scanner, need to check out the system to find the fault or the light will come back on straight away. A good place to start is the connector to the front seats for the seat belt tensioners. This cable gets more movement with adjusting the seat, I have found this to be the fault on about 70 per cent of faults found. Good luck

Jan 02, 2014 | 2003 Mercury Mountaineer

1 Answer

Why does the airbag light stay on


will if flash a number of times befor staying on? if it does its telling you a coded prob. take it in and have the computer scanned.

Jan 10, 2011 | 2003 Mercury Mountaineer

1 Answer

Removed and reinstalled factory radio from a 1999 mercury mountaineer and then the airbag light came on when the vehicle was started, how do i reset the airbag light?


remove battery and wait 30 secs computer now clear

re install cable and start with no codes
if air bag light comes on then you have a loose wire

Jan 10, 2010 | 1999 Mercury Mountaineer

1 Answer

1999 mercury mountaineer, removed radio and airbag light came on, what can i do?


Turn the key completely off and then start the car, if the light flashes and stays on you will have to have somebody with a factory level scantool talk to the airbag module to see what triggered it.

Jan 09, 2010 | 1999 Ford Explorer

1 Answer

Airbag light on what does that mean 2002 mercury mountaineer


It means that your airbag system is not fully functioning and you need to have the dealer check it out. Whenever the airbag light stays illuminated after starting the vehicle, it means that there might be a problem with the air bag system and a check up is needed ASAP to make sure the system will operate properly in the event of an accident. It could be a faulty sensor, or it could be that a wire or connection is loose, etc., in any case, the dealer will need to check the airbag system to determine what the problem is.

I had a situation where an stereo installer had probed the wires in the airbag system and that caused the system to become non-functional, due to having voltage applied to the airbag wiring where it shouldn't have any voltage. It was an expensive fix, as he'd actually stripped the wires bare and he crossed several. Cost him a bunch to replace the wiring harness on my new vehicle.

Jul 13, 2009 | 2002 Mercury Mountaineer

1 Answer

Airbag light stays on


Hey,
take a look at www.airbagmodul.com

They're working in Airbag-Simulators and Occupancy Sensor-Simulators.

Regards

Gerrit

Jun 20, 2009 | 2004 Mercury Mountaineer

1 Answer

2003 mercury mountaineer


get it read at autozone for free probably related

Jul 27, 2008 | 2003 Mercury Mountaineer

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