new

Compare Quotes from TRUSTED Repair Shops

100% Satisfaction Guarantee PLUS 5% Cash Back on Repairs

Available in:
Bakersfield, CA
Spokane, WA
Long Island, NY
Get Quotes
Home » Auto Answers » Preventive Maintenance » Mercury » Page 14

Mercury preventive maintenance repair questions and answers

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

Browse Mercury Categories

208 Questions
Sort by:
  • iceman1966
    iceman1966 - 2002 Mercury Grand Marquis - Preventive Maintenance - 6/14/2010
    Air conditioing on my car stopped blowing cool air
    the compressor works,needs no freon and the black thing in there is cold bot the air is not coming out of the dash,only warm air. it made a funny knocking noise in the dash before it stopped working. i would really appreciate the advice
     
    • ANAYV
      6/14/2010 ANAYV
      some cars have a 'blend door' .separates the warm air,from the cool air,or mixes them.
    • HouseCallAuto
      6/14/2010 HouseCallAuto
      Anayu is right. Your Merc needs a blend door actuator. It is stuck / failed in the heat position.
  • James
    James - 2003 Mercury Grand Marquis - Preventive Maintenance - 6/11/2010
    Why does air not flow throught the front air vent inside my car.
    The defrost and floor vents work, but the front vents don't blow.
     
    • HouseCallAuto
      6/11/2010 HouseCallAuto
      Most times the fix is to replace the EATC control head which is the controls that you input settings on the dash. Here is a detailed diag procedure if you are up to this sort of thing.>>

      1. Verify manifold vacuum is present to the HVAC controls on the black vacuum line, and, that when the engine is shut off vacuum will hold in the vacuum line.

      2. If vacuum bleeds off when the engine is shut off, inspect the vacuum line to the vacuum tree and to the vacuum reservoir.

      3. If manifold vacuum is good to the HVAC control assembly, check the other individual vacuum lines with a hand-held vacuum pump to verify there is no excessive bleed-off indicating a related vacuum line or vacuum actuator problem.
      The white vacuum line feeds the fresh air inlet door controlling the use of fresh air vs. recirculation air from inside the passenger compartment.
      The red vacuum line feeds the defrost/floor vacuum motor. This actuator is sent a vacuum signal in every position except Defrost and Defrost/Floor.
      The yellow vacuum line also feeds the defrost/floor vacuum motor. This vacuum line sends the actuator a vacuum signal in all positions except defrost.
      The blue vacuum line feeds the panel door vacuum motor. This vacuum line sends the actuator a signal in the MAX A/C, NORM A/C or VENT positions.

      4. If the black vacuum line is feeding the control assembly a proper vacuum signal and the actuators are pulling and holding a vacuum signal using the hand-held pump, the HVAC control assembly is failing.
      Potential Causes: Heater Ventilation Air Conditioner (HVAC) Actuator
      HVAC Control Assembly
      Vacuum Line
      Vacuum Lines Connections
      Defective Vacuum Tank

  • william nowell
    william nowell - 2005 Mercury Grand Marquis - Preventive Maintenance - 5/31/2010
    Headlights not coming on
    headlights come on when they want to ,windsheild wipers dont come on at all ,bought motor for wipers bought headlight swich sitll dont work
     
    • sbrad22
      5/31/2010 sbrad22
      Check the fuse for the wipers in the fuse box.Check your relay switch in fuse box for headlights.The relays are the big square things in your fuse box.
  • Twhitney
    Twhitney - 2002 Mercury Sable - Preventive Maintenance - 5/29/2010
    When running A/C scan getting codes 051 and 053, what do these codes indicate?
     
    • HouseCallAuto
      5/29/2010 HouseCallAuto
      Check the sunload sensor circuit. Test the sensor resistance between pin 1 and 5. Should have continuity.
      1. Disconnect the Sunload sensor 6 cavity connector. The sensor is located above the glove box on the dash. Measure continuity between the sensor terminal 1 (Brown wire will connect to it) and terminal 5 (Black/Yellow will connect to it).

      2. The sensor should show continuity. The value will change based on the intensity of light applied to it. If the sensor reads open, replace the sensor, clear codes and retest for proper operation.
  • hova
     
    • HouseCallAuto
      5/23/2010 HouseCallAuto
      Usually a plastic ring turns counterclockwise just a bit and then the bulb pulls straight out with the wire attached.
  • laura
    laura - 2006 Mercury Mountaineer - Preventive Maintenance - 5/23/2010
    Step by step on how to replace fuel filter
     
    • HouseCallAuto
      5/23/2010 HouseCallAuto
      We do not have the step by step procedure to copy and paste here. That information will have to come from the appropriate repair manual for your make and model.
  • Kevin
    Kevin - 2002 Mercury Mountaineer - Preventive Maintenance - 5/23/2010
    I hear a sound coming from the right front wheel
    I jacked the car up and there was no play at all when I had my hands at the 12 and 6 oclock positions. I could not rotate at that time however, we did replace the left front hub assembly a while back. The noise there was more than what I hear now but I was ...
     
    • jim
      5/22/2010 jim
      if your abs light is on look into the wheel bearing
    • HouseCallAuto
      5/23/2010 HouseCallAuto
      It is probably a bad hub bearing on the right side.
  • gravy300
    gravy300 - 2000 Mercury Sable - Preventive Maintenance - 5/20/2010
    Coolant light keeps coming on but raditor and reserve is full of coolant
     
    • Bobby
      5/20/2010 Bobby
      there is usually a float in the coolant reservoir that could be the problem.
  • dino arias
    dino arias - 1999 Mercury Grand Marquis - Preventive Maintenance - 5/15/2010
    I am having problems with my rest control
     
  • Haroldw
     
    • Bobby
      5/10/2010 Bobby
      probably need to replace the flasher
      it should be in the fuse panel will look more like a reelay big square or round
  • Val
    Val - 2001 Mercury Cougar - Preventive Maintenance - 5/8/2010
    A loud intermittent humming sound - seems to come from fan area.
    The sound happens when I take my foot off the gas, or intermittently while sitting at an idle. As soon as I press the gas pedal it goes away. It's a sound that goes up and down, sounds kind of like an loud low-pitch kind of hum or echo. Someone looked at it and ...
     
    • Mike
      5/8/2010 Mike
      Sounds like it could be the fan from your description. Can you disconnect the fan and see if the noise goes away?
  • cougardenny
    cougardenny - 1991 Mercury Cougar - Preventive Maintenance - 4/2/2010
    Odometer not working
    How to repair a broken odometer? My speedometer is working fine, but odometer is not working. What is the problem?
     
    • Cory M.
      4/1/2010 Cory M.
      Sounds like something is wrong with the circuit board behind the instrument cluster (Speedometer). You can replace the circuit board, but with all honestly, I would just get a used or new instrument cluster, from a junk yard or Ebay.
    • cougardenny
      4/2/2010 cougardenny
      I bought an instrument cluster from a local junk yard. First, I replace the circuit board, but it didn't work; therefore, I put the old circuit board back in and replace the speedometer unit, and it works. Thanks
      cougardenny
      4/3/2010 Cory M.
      No problem. Glad it worked out.
  • whitebear
    whitebear - 1996 Mercury Grand Marquis - Preventive Maintenance - 3/19/2010
    No gas leaks but still every now an then i get a strong smell of gas from the trunk,some one said maybe filler tube?
    any one have an idear of what to do? ty and if it is the filler tube is it hard to fix or change? ty again
     
    • HouseCallAuto
      3/19/2010 HouseCallAuto
      I suspect that you have a small fuel leak from a rotted fuel line on the left side frame rail toward the rear of the car just in front of the left rear tire. Sometimes the line is rotted so bad it is porous and seeping fuel slowly but yet does not drip.

      Kevin - HouseCall Auto Mechanics