Auto Answers » Engine » Mercury

Mercury engine repair questions and answers

Post your Mercury engine question or share what you know by answering questions

1344 Questions
Sort by:
  • OGUNTONA FOLUSHO ELIJAH
    OGUNTONA FOLUSHO ELIJAH - 2002 Mercury Sable - Engine - 4/30/2015
    Why is my car overheating while driving.
    when i am driving and i accelerate the engine very fast the engine will start roaring and moving faster and break becomes harder.Can someone tell me what is wrong?
     
    0 answer
  • Dawn Macias
    Dawn Macias - 2002 Mercury Villager - Engine - 4/29/2015
    My van balks when I start it, then will start The battery is new, so is it my starter or my alternator?
    It trys to start, but it acts like the battery is dying, yet seems to have full power to start a couple of more times
     
    0 answer
  • Donald
    Donald - 1999 Mercury Villager - Engine - 4/26/2015
    Often jerks back and forth with engine shaking severely.
    engine light been on for a couple months,155,000miles/ vehicle never did this before/when it did this I had just started the vehicle up after doing an errand/it would hardly idle/engine shook real bad/put it in gear to back up and would stall/and after a few times ...
     
    • Jimm
      4/26/2015 Jimm
      First step - have the stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' with the specific code for more assistance.

      This aspect is important; there may be a fault code stored in the OBD memory which may not be displayed as a check engine light.

      Do not skip this important first step - there are literally hundreds of possible fault codes. Avoid wasting/ throwing money at the problem.

      Possible Causes of Engine Hesitation or Stumble:

      Dirty fuel injectors (cleaning the injectors often fixes this)
      Dirty air filter (change filter)
      Dirty / clogged fuel filter (change filter)
      Bad MAP (manifold absolute pressure) sensor
      Bad TPS (throttle position) sensor
      Bad or dirty MAF (mass airflow) sensor
      Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
      Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
      Bad gasoline (fuel contaminated with water or too much alcohol)

      Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

      Dirty or worn spark plugs
      Bad plug wires
      Weak ignition coil
      Wet plug wires
  • mike
    mike - 2000 Mercury Mountaineer - Engine - 4/24/2015
    Car starts but soon as I put it in drive it wants to kill or seems so have no power
    I was driving it and it was running fine I came to a red light and it killed I restarted it and soon as I put it in drive it wanted to kill again but I got it to go and it seemed sluggish and lacking power I got it home parked it for some hours and started ...
     
    0 answer
  • Yolanda
    Yolanda - 2008 Mercury Milan - Engine - 4/24/2015
    Why won't my car start up when I turn on the ignition? Why won't the horn blow or the lights come on?
    The first signs of something going wrong was when, while driving, I would turn on the heater and a few minutes later the battery light would come on. I got it to a mechanic and he tightened a bolt on the battery (or related piece) and the car started up just fine. ...
     
    • jdl
      4/24/2015 jdl
      Make sure the battery has a full charge. Check the battery cables positive and negative. Do you have a friend or somebody that can check that out for you?

      jdl
      4/24/2015 Yolanda
      Not sure but will send out a request for help on this.
      Thanks
  • Harljeep55
    Harljeep55 - 1995 Mercury Tracer - Engine - 4/11/2015
    Engine turns & makes an attempt to start sometimes but does not start.. What else needs to be checked?
    Car used to start but only if you kept on the starter for about 30 sec. Now It does not start at all. Once in a while it makes a try for a second but does not start. What should I check & what may be the problem? No warning lights on. Vehicle was run hot a few times.
     
    0 answer
  • happyguy
    happyguy - 2010 Mercury Mariner - Engine - 4/11/2015
    Why does my car stall when I turn the AC on?
    when I turn the AC on my I will hear a loud hiss from the engine compartment and my car will stall and I'm only getting very hot air out of my AC unit
     
    0 answer
  • Brandi
    Brandi - 2002 Mercury Cougar - Engine - 4/6/2015
    Why is my car over heating and losing antifreeze?
    I was driving my car the other day and noticed the heat gauge moved to hot. Brought it home and noticed I had some kind of liquid trail behind me and a puddle under my car next to the front passenger tire. Car doesn't over heat when parked or ideling, only when ...
     
    • Jimm
      4/6/2015 Jimm
      Loss of coolant because of a coolant leak is probably the most common cause of engine overheating. Possible leak points include hoses, the radiator, heater core, water pump, thermostat housing, head gasket, freeze plugs, automatic transmission oil cooler, cylinder head(s) and block.

      Make a careful visual inspection of the entire cooling system, and then PRESSURE TEST the cooling system and radiator cap. A pressure test will reveal internal leaks such as seepage past the head gasket as well as cracks in the head or block. A good system should hold 12 to 15 psi for 15 minutes or more with no loss in pressure. If it leaks pressure, there is an internal coolant leak (most likely a bad head gasket but possibly also a cracked cylinder or engine block).

      It is important to pressure test the radiator cap, too, because a weak cap (or one with too low a pressure rating.

      1. Perform a cooling system / radiator pressure test when the engine is cold - as a first step to locate the leak.
      Obtain a loaner tool / free radiator pressure tester from the local auto parts stores such as Autozone, O'Reilly, NAPA, Advance Auto, or PepBoys. Follow their instructions and pump it to an adequate air pressure 12 -15 psi or the pressure rating listed on the radiator or reservoir cap. Observe the leaks and perform the repair.
      Note: do not over pressurize beyond the pressure allowed by the radiator cap, then test the radiator cap as well.

      2. Air pockets trapped in the cooling system can cause the engine to overheat. Some cooling systems have air bleed valves built into the system to aid in the removal of air pockets. Advice: For many cooling systems, the method of removing air pockets is to start the engine and allow it to run with the radiator cap off or loose until all the air escapes from the neck of the radiator. For some systems this method is not sufficient, and the manufacturer has installed air bleed valves usually near or on the thermostat housing.
  • Zac Webb
    Zac Webb - 2006 Mercury Grand Marquis - Engine - 3/28/2015
    How to replace fuel pump?
    Fuel pump failed on me.
     
    • Jimm
      3/28/2015 Jimm
      Raise vehicle on a lift. The fuel tank does not need to be lowered for this procedure on this particular vehicle. It is recommended that you have less than a 1/4 tank of fuel for this procedure. With the appropriate fuel line disconnect tools, disconnect the fuel supply and return lines at the pump. Disconnect the electrical connector to the pump. Remove the six 8 mm bolts securing the pump to the fuel tank. Carefully, finesse the pump and sending unit assembly out of the tank. Replacement is the reverse of removal.
      Check these various on-line vendors; www.autopartswarehouse.com, www.RockAuto.com, www.partsgeek.com, to list only a few. They list the new fuel pump from around $142.00 for your vehicle.
  • Zac Webb
    Zac Webb - 2006 Mercury Grand Marquis - Engine - 3/28/2015
    How to replace a fuel pump?
    Fuel pump failed.
     
    • Jimm
      3/28/2015 Jimm
      Raise vehicle on a lift. The fuel tank does not need to be lowered for this procedure on this particular vehicle. It is recommended that you have less than a 1/4 tank of fuel for this procedure. With the appropriate fuel line disconnect tools, disconnect the fuel supply and return lines at the pump. Disconnect the electrical connector to the pump. Remove the six 8 mm bolts securing the pump to the fuel tank. Carefully, finesse the pump and sending unit assembly out of the tank. Replacement is the reverse of removal.
      Check these various on-line vendors; www.autopartswarehouse.com, www.RockAuto.com, www.partsgeek.com, to list only a few. They list the new fuel pump from around $142.00 for your vehicle.
  • Merc
    Merc - 2003 Mercury Grand Marquis - Engine - 3/16/2015
    Car sputtering and dying
    My car sporadically stutters and dies in wet weather. Have had new mass airflow sensor, oxygen sensors, and Idle control valve put in, also new spark plugs. T Id still happening. Help!
     
    • Jimm
      3/16/2015 Jimm
      First step - have the stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' with the specific code for more assistance. There may be a fault code stored in the OBD memory which may not be displayed as a check engine light.

      Do not skip this important first step - there are literally hundreds of possible fault codes. Avoid wasting/ throwing money at the problem.

      Possible Causes of Engine Hesitation or Stumble:

      Dirty fuel injectors (cleaning the injectors often fixes this)
      Dirty air filter (change filter)
      Dirty / clogged fuel filter (change filter)
      Bad MAP (manifold absolute pressure) sensor
      Bad TPS (throttle position) sensor
      Bad or dirty MAF (mass airflow) sensor
      Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
      Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
      Bad gasoline (fuel contaminated with water or too much alcohol)

      Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

      Dirty or worn spark plugs
      Bad plug wires
      Weak ignition coil
      Wet plug wires
  • Joe Neff
    Joe Neff - 1994 Mercury Grand Marquis - Engine - 3/12/2015
    Checkenginelamponandoff
    onandoffwhikedriving.doesnotstayonanylengthoftime. first noticedwhenengineturned100000miles
     
    • Jimm
      3/12/2015 Jimm
      The check engine light is located on the dash and stays on if the computerized engine control system detects an engine performance or emissions problem.

      First step - have the stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' with the specific code for more assistance. There may be a fault code stored in the OBD memory which may not be displayed as a check engine light.

      Do not skip this important first step - there are literally hundreds of possible fault codes. Avoid wasting/ throwing money at the problem.
  • Rebecca
    Rebecca - 2002 Mercury Mountaineer - Engine - 3/11/2015
    There is a clicking noise coming from under the hood of my car, similiar to playing cards in bike spokes.
    I just spent $1400.00 to have work done on the rear differential, as well as having the front passenger wheel bearing replaces
     
    0 answer
  • Evans
    Evans - 2008 Mercury Milan - Engine - 3/7/2015
    It won't accelerate and shakes/put on computer and said c,e,f coils were bad/changed them and now it won't accelerate
    I was merging onto the interstate and I felt an usual drag. I continued to drive and the drag continued. It started becoming harder and harder to accelerate, so I pulled car. By this time, my car has begun to shake. Now factor in, all of this took place within a ...
     
    • Jimm
      3/7/2015 Jimm
      First step - have the stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' with the specific code for more assistance. There may be a fault code stored in the OBD memory which may not be displayed as a check engine light.

      Do not skip this important first step - there are literally hundreds of possible fault codes. Avoid wasting/ throwing money at the problem.

      Possible Causes of Engine Hesitation or Stumble:

      Dirty fuel injectors (cleaning the injectors often fixes this)
      Dirty air filter (change filter)
      Dirty / clogged fuel filter (change filter)
      Bad MAP (manifold absolute pressure) sensor
      Bad TPS (throttle position) sensor
      Bad or dirty MAF (mass airflow) sensor
      Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
      Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
      Bad gasoline (fuel contaminated with water or too much alcohol)

      Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

      Dirty or worn spark plugs
      Bad plug wires
      Weak ignition coil
      Wet plug wires
  • Evans
    Evans - 2008 Mercury Milan - Engine - 3/7/2015
    It won't accelerate and shakes/put on computer and said c,e,f coils were bad/changed them and now it won't accelerate
    I was merging onto the interstate and I felt an usual drag. I continued to drive and the drag continued. It started becoming harder and harder to accelerate, so I pulled car. By this time, my car has begun to shake. Now factor in, all of this took place within a ...
     
    • Jimm
      3/7/2015 Jimm
      First step - have the stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' with the specific code for more assistance. There may be a fault code stored in the OBD memory which may not be displayed as a check engine light.

      Do not skip this important first step - there are literally hundreds of possible fault codes. Avoid wasting/ throwing money at the problem.

      Possible Causes of Engine Hesitation or Stumble:

      Dirty fuel injectors (cleaning the injectors often fixes this)
      Dirty air filter (change filter)
      Dirty / clogged fuel filter (change filter)
      Bad MAP (manifold absolute pressure) sensor
      Bad TPS (throttle position) sensor
      Bad or dirty MAF (mass airflow) sensor
      Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
      Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
      Bad gasoline (fuel contaminated with water or too much alcohol)

      Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

      Dirty or worn spark plugs
      Bad plug wires
      Weak ignition coil
      Wet plug wires