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  1. Battery discharged or low
  2. Air filter dirty
  3. Bad engine ground connection
  4. Fuel not reaching injectors check fuel filter,lines and pump
  5. Defective spark plugs
  6. Defective engine coolant temperature sensor
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Q: What would cause a 2003 Mercury Mountaineer hard to start?
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Would ABS Sensor cause 1997 mercury mountaineer not to start?

No , ABS is the anti-lock brake system


What would cause an abs light to come on on a 98 mercury mountaineer?

An ABS fault.


When you accelerate in your1999 mercury mountaineer the vents close what would cause this?

Pin cone


What would cause the front axle to break on a '97 Mercury Mountaineer?

bearning on front breaks burn out


Which freon do you use in a mercury mountaineer?

Since the first model year of the Mercury Mountaineer is the 1997 model it would be ( r134a )


What would cause the loud metal banging sound in the front of my 98 mercury mountaineer?

Check the main crank pulley.


Why would the engine be smoking on your mercury mountaineer?

rings or seals


What would cause a loud winding noise in a 1997 Mercury Mountaineer?

Bearing in: Alternator? Water pump? A/C Compressor? Belt tensioner?


How many quarts does a 2003 v8 mercury mountaineer take?

That would be the 4.6 liter engine, which takes six quarts. * of 5W-20 according to the 2003 Mercury Mountaineer Owner Guide


When you accelerate in your 1999 mercury mountaineer the vents close what would cause this?

Vacuum leak in a/c door control system . Look for vacuum leak under the hood.


What would cause the brakes on a 97 Mercury Mountaineer to be soft and the anti-lock braking system to engage at speeds below 5 MPH?

Check into the ABS pump or module ---- I would say the pump


Where is fuel filter 97 mountaineer?

On a 1997 Mercury Mountaineer : I assume the fuel filter would be in the same location as a 1997 Ford Explorer : ( underneath the Mountaineer , below the drivers door , mounted on the frame rail )