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Mercury preventive maintenance repair questions and answers

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  • robert
    robert - 1995 Mercury Grand Marquis - Preventive Maintenance - 11/25/2011
    What is the best battery for a 1995 grand marquis?
    Advanced auto parts has a sale on there gold star brand, is this a quality battery? Are all batteries about the same quality? Thanks!
    • Jimm
      11/25/2011 Jimm
      Buy the battery that; fits your vehicle and has the best warranty - that you can afford.
    • HouseCallAuto
      11/25/2011 HouseCallAuto
      It's all about the CCA (Cold cranking amps). The higher the CCA the better the battery and usually the higher the price. The heavier the battery gets carrying it is the better battery.
  • PHIL
    PHIL - 2006 Mercury Mountaineer - Preventive Maintenance - 11/24/2011
    Were is cylinder 8 car shakes i put machine on code say misfire 8
    have to replace cylinder 8 for a miss fire do i change all plugs
    • jdl
      11/24/2011 jdl
      Number 8 cylinder should be driver side rear. You can check spark at the plugs, then check injector pulse.
      11/24/2011 PHIL
      thanks i appreciate it
      11/25/2011 jdl
      Let us know what you find.
  • robert
    robert - 1995 Mercury Grand Marquis - Preventive Maintenance - 11/20/2011
    What is the best and brightest headlight bulb replacement? Thanks!
  • robert
    robert - 1995 Mercury Grand Marquis - Preventive Maintenance - 11/18/2011
    What is the best fuel system cleaner that can be purchased
    • Jimm
      11/18/2011 Jimm
      Don't usually like to respond to a question with a question, but why do you need a fuel system cleaner? What factors or circumstances are presented to warrant the fuel system cleaner question?
      As long as the fuel system filters are changed regularly on your vehicle and you use the correct grade of fuel - there should be no need for the fuel system cleaner additives.
  • DaveF1953
    DaveF1953 - 1991 Mercury Tracer - Preventive Maintenance - 11/5/2011
    Is the Fuel filter In-Line or is it in the Gas Tank? From what I pull up on this website, it looks in-line.
    Is there also some way to change the Thermostat? It appears to be under the distributor cap and gives me the willies looking at it.
    • MasterTech
      11/5/2011 MasterTech
      The fuel filter is located in the engine compartment, mounted on the left hand fender apron next to the shock tower.
      The thermostat is not as hard as it looks, the labor time is 1.1 hours
      11/6/2011 DaveF1953
      Thank you very much. I owe you. If you have any PC questions, I'll be happy to help.
  • Billy Reynolds
    Billy Reynolds - 1999 Mercury Sable - Preventive Maintenance - 10/31/2011
    Where is the drain plug on the radiator
    • Jimm
      10/31/2011 Jimm
      The drain plug on the radiator (if equipped) would be located on the underside or on the bottom of the radiator. If no drain plug - then loosen the lower radiator hose clamp and remove the lower hose connection at the radiator to drain the radiator.
  • mike
    mike - 2003 Mercury Mountaineer - Preventive Maintenance - 10/29/2011
    Replaced the blend door actuator but the door still dont change from cold
    heard one of the other door slam shut and then it started working for a minute ,i shut the car off and started it back up and tried it again and it wouldn't work
    • HouseCallAuto
      10/29/2011 HouseCallAuto
      Remove the blend door actuator and move the door by hand to confirm that the door is not broken and that you are able to vary the temperature. Are you sure that what you replaced was the temperature blend door actuator and not a different actuator? That would explain why you still do not have heat. You could also have a Broken Blend Door Crank Arm.
  • Keithbaby
    Keithbaby - 2005 Mercury Sable - Preventive Maintenance - 10/29/2011
    AC was blowing cold then started blowing warm air - told clamp broken -need 'AC HARNASS'?
    AAmco in Richardson "repaired" AC 1yr and 4 days ago -yesterday stopped blowing cold for 4th time -told it was broken AC harness/clamp -compressor plug will not stay in. AC blows but warm, musty air. Have checked with 2 Ford dealerships -NAPA -lkq -autozone and ...
  • pezza
    pezza - 1996 Mercury Sable - Preventive Maintenance - 10/25/2011
    Headlights and wipers don't work all the time. The high beams work if the control is positioned just right.
    could the control on the steering colum also control the headlights even though the light switch is on the dash? You have to push back the control to put on the high beams.
    • theoldstoryteller
      10/25/2011 theoldstoryteller
      It sounds like you need to replace that switch.
      10/29/2011 rdoss
      replaced dash switch , marker lights (orange on side) work still no headlights
  • rscottjr1987
    rscottjr1987 - 1993 Mercury Cougar - Preventive Maintenance - 10/24/2011
    What Could drain the battey on my car?
    I have put a new battery in the car, I have checked the alternator, which is good. But the battery keeps losing its charge.
    • Bill
      10/16/2011 Bill
      How long does it take to loose it's charge? And how did you check alternator?
      10/17/2011 rscottjr1987
      I checked the alternator by disconnecting the battery while the car was running, and so far it hold a charge for about 24 hours then its dead, I also did a ground test at night. The ground sparked meaning that something is grounded, but i don't know what. This is what im trying to figure out. Thanks
    • Bill
      10/24/2011 Bill
      Actually this means that you have a drain somewhere whether it is a glove box light a trunk light a under hood light or a dome lite. And try not to test alternator in this fashion in the future you may blow out a trisister diode if not careful on these newer alternators. also check if possible with a ampmeter when neg term disconnected to see what the draw is.
  • fundwayne
    fundwayne - 1998 Mercury Sable - Preventive Maintenance - 10/23/2011
    I have rust ONLY under my car,what can i do about this,before it causes damage to the car?
    the car from front to back is brown underneath,no holes yet.
    • Jimm
      10/23/2011 Jimm
      Sand blast rusted areas, prime and paint. If there are any holes, fix holes first.
  • mdubbwa
    mdubbwa - 2003 Mercury Grand Marquis - Preventive Maintenance - 10/19/2011
    I cant get any heat,can i have a bad heater valve
    i have electronic heater controls
    • Spoon Sports
      10/19/2011 Spoon Sports
      Assuming you mean that your A/C works fine and the only problem is the air being blown out is not warm as it should be on heat, could be a couple of things.

      Valve not sending coolant to heater core. To check this just warm the car up, turn on the heater, and pop the hood. Find where the heater core hoses connect at the firewall. Feel each side (in and out), they should both be very warm. If not very warm, your heater core is not getting any heated water to share with you in the cabin. Follow the hoses from the firewall to wherever they go. If there is a device connected inline, feel both sides of it. If the 'other' side is hot, the valve isn't turning on. This is what you hope the problem is, cheap and easy.

      Blend door not operating properly. This is the flapper door within your heater/AC box that puts air through the heater core or the AC core. Checking or fixing it means removing the dash, which isn't any fun. Hope it's the valve above.
  • Steve
    Steve - 1999 Mercury Sable - Preventive Maintenance - 10/17/2011
    Where is cabin filter?
    Cabin filter
    • Spoon Sports
      10/17/2011 Spoon Sports
      Pop the hood and look at the passenger side near the firewall. Remove the black plastic piece near the windshield. It has a few clips that can be pried off with a flat screw driver. Remove the two Phillips screws and pull out the second plastic shield. The air filter is triangular in shape and fits into a space in the corner. Replace the filter and then put the two shields back on.
      The filter is located under the hood, just in front of the windshield on the passenger side under the cowl grille. The steps you would follow are:
      1- Open the hood. The filter section is on the passenger side.
      2- I removed 3 push-on- clamps to open the grille. I found it was filled with trash. Clean out debris.
      3- Unsnapped (the best I can describe it) a part that held the filter down and then remove and relpace the filter.
      5- Then put everything back together.
  • jdl
    jdl - 1998 Mercury Tracer - Preventive Maintenance - 10/16/2011
    Number under your picture
    What does that number mean, if anything? I was stuck at 140 for a couple of days, now the number is going down? thanks
    • jdl
      10/15/2011 jdl
      I looked at the monthly post count, that seems to be correct. How does anybody get 800 posts in two weeks, If I was reading that correctly? my goodness.
      11/24/2011 CVO
      Master jdl. Happy Thanksgiving to you and family.
      11/24/2011 jdl
      Happy thanksgiving to you and yours.
    • CVO
      10/16/2011 CVO
      The system may have a glitch and that may caused a corruption in the network.
      10/16/2011 CVO
      Correction.............that may caused a corrupted files in the network.
  • Judi
    • Spoon Sports
      10/3/2011 Spoon Sports
      Spoon Sports
      10/3/2011 Judi
      Thank you sooooo much! Now all I have to figure out is the size lug nut I have,lol.
      I think people who use this site know alot more about cars then I do..but I'm determined to do this and I appreciate your help. Thanks, Judi
    • Spoon Sports
      10/14/2011 Spoon Sports
      No worries and good luck....i know you can do it