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Buick preventive maintenance repair questions and answers

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  • AutoMD User
    AutoMD User - 2002 Buick Rendezvous - Preventive Maintenance - 7/20/2014
    Power outlet (cig lighter) and onstar quit working, they are on the same fuse, new fuse didn't help. now speakers have
    no sound, any ideas?
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2005 Buick Rendezvous - Preventive Maintenance - 7/10/2014
    The master window control panel does not work for the left rear window or front right window. Why is that ?
    At one time I could control the back left window with that button now I can't .I bought the car used in june 2014 like that. At the time of purchase I never could operaret the front right window.
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2008 Buick LaCrosse - Preventive Maintenance - 7/4/2014
    Fix flat tire can i use a crowbar to remove the cap
    Can't remove the cap on a dropstar mag
     
    • bear.1216
      7/4/2014 bear.1216
      I think that is a two piece hubcap. With a hubcap and center cap. The center cap attaches to the hubcap. and the hubcap has plastic nuts that attach it to the wheel lugnuts. You have to pry out the center piece first. If you pry on the outside edge you will break it.
      Not sure of your exact hubcap style, but typically you remove the center of the hubcap with a screwdriver or tire iron. You have to pry out the center circle. there is usually a small slot to fit your prying tool. Once the center cap is off you will likely see black plastic lugnut covers. The plastic nuts just unscrew with your tire iron. The plastic nuts hold on the hubcap. Once they are loose the cap will come off to access the lugnuts.

  • AutoMD Member
    AutoMD Member - 2005 Buick LaCrosse - Preventive Maintenance - 6/18/2014
    My low beams will randomly stop working but the high beams work fine.
    Fuses, bulbs, relays all have been checked. I replaced the right headlight section because it was cracked. that worked for a while but didnt entirely fix the problem
     
    0 answer
  • AutoMD Member
    AutoMD Member - 1993 Buick Regal - Preventive Maintenance - 5/13/2014
    What would cause my car to shake when speed gets up to about 50 to 60 mph.
    bought new tires which included balance and alignment. Did not fix the issue. what should be first thing to have checked.
     
    • Chevy doctor
      5/13/2014 Chevy doctor
      suspension components with excessive play, did they balance wheels correctly, or excessive CV joint play in axles.
      Chevy doctor
      5/13/2014 Chevy doctor
      Steering linkage too. Tie rods etc.
      Chevy doctor
      5/14/2014 AutoMD Member
      tires are two weeks old. I will check out the balance. looks like several causes for this problem. thank you
  • kailyn
    kailyn - 2005 Buick Rainier - Preventive Maintenance - 5/12/2014
    Were is the blend door actuator located
    I took out the center console.i found what looks like a blend door actuator but it controlls the back air vents it works and changed the course of air as i changed it with the back controlls.i have cold passenger side and hot on driver side.front controlls change ...
     
    • CVO
      5/12/2014 CVO
      HOT AIR DRIVER, COLD AIR PASSENGER SIDE.‏

      The system is low on refrigerant, and only after it is confirmed if it is in need of refrigerant or not can the blend door actuator be a cause. This is a confusing symptom - cold on pass side and hot on the other, it even throws off good mechanics, but in the majority of cases the cause simply is that the system is low, The refrigerant only fills half of the evaporator and the half that it fills is directly inline with the pass side ducting and the other side that lacks refrigerant is inline with the driver side ducting.

      Note: Cool on the driver side and hot on the pass side is almost always caused by a faulty pass side blend door actuator. If it were the reverse (cool on pass side and hot on driver side the cause is always that the system is low on refrigerant.)



  • kailyn
    kailyn - 2005 Buick Rainier - Preventive Maintenance - 5/11/2014
    No ac only heat blows good need help checked fuses rechare gauge reads full so cant put freon in
    Ac relay makes clicking noise when compresser kicks on and compresser clicks on and off .i have heat but no ac no noise under dash
     
    • GT500Knights
      5/11/2014 GT500Knights
      How much refrigerant did you add? Every vehicle has a specific amount to add, weighted in lbs or grams. Too much or too little will allow ac system to function improperly. At idle, it is normal for the compressor to engage and disengage. It will not run full time all the time. This is because of the high side pressure switch. When the pressure reaches a specific level (say around 250 psi), the compressor clutch disengages the compressor. Then once the pressure drops to a point, say around 100-150 psi, the clutch re-engages the compressor, and so on.

      The blend door may be stuck in a position that blows air through the evaporator and heater core. Outside air is cooled through the evaporator, then gets re-heated when it passes through the heater core. Check climate controls and blend door motor for funtionality.

      Your orific tube may need replacement. This is what separates the high and low pressure sides of the air conditioning system.

      You may have moisture in your system. If your system has a leak, even a small one, refrigerant will leak out. Most people will simply add more refrigerant into the system. This is the improper way to go about it. If the system was ever open to outside air, moisture will be trapped in the system. The low pressure side of the system can reach degrees below freezing. When you have water in the system, the water freezes and turns to ice, usually inside the orific tube or evaporator core , and blocks refrigerant from circulating. This scenario is most noticed when the air conditioning system works for about 5-10 minutes, then all of a sudden the air isn't cold anymore.

      You may have excessive internal blockage in the air conditioning condenser. Back flush the system

      You may have excessive external blockage at the condensor. Bugs, leaves, and debris can get caked up over time in the front of the condensor fins, restricting enough air from flowing through too cool hot refrigerant. Also check to ensure the fins aren't bent.
    • Chevy doctor
      5/11/2014 Chevy doctor
      If you are sure compressor is engaging but you are not getting any cool air than more than likely you have a temp actuator malfunction. Check air conditioning line temps, low side should be cold and high side should be hot. If low side is cold you know its making it inside HVAC case but temp blend door is not opening by actuator. If this is the case please let me know and I will give you a solution.
  • michael
    michael - 2004 Buick Rendezvous - Preventive Maintenance - 4/23/2014
    Headlight won't work
    Headlight won't work after being replaced
     
    • CVO
      4/23/2014 CVO
      Headlight switch directs current to the headlights and running lights to turn them on or off, check it and replace it as necessary.
  • AutoMD Member
    AutoMD Member - 1998 Buick LeSabre - Preventive Maintenance - 4/3/2014
    The first 2 months of owning this vehicle I was getting 365 miles on a full tank but now I can barely get 300 miles.
    This car has 82600 miles. I wanna try replacing the fuel filter but I don't want to waste the effort and it done help.
     
    • HouseCallAuto
      4/3/2014 HouseCallAuto
      Have to start somewhere. If the fuel filter has not been replaced in [years] it is a good place to start. Check the air filter and see if dirty enough to block air flow. Plug in a code reader and see if any fault codes are stored. There is no way to diagnose this without some money spent. Replacing a fuel filter that has 40K miles on it would not be considered a wasted effort to try to solve a driveability problem.
    • Pepe
      4/3/2014 Pepe
      I agree plug in a code reader and go from there, there lots of things that could cause your gas mileage to drop.
  • AutoMD Member
    AutoMD Member - 1998 Buick LeSabre - Preventive Maintenance - 4/3/2014
    The first 2 months of owning this vehicle I was getting 365 miles on a full tank but now I can barely get 300 miles.
    This car has 82600 miles. I wanna try replacing the fuel filter but I don't want to waste the effort and it done help.
     
    0 answer
  • AutoMD Member
    AutoMD Member - 1992 Buick Century - Preventive Maintenance - 3/21/2014
    Whats wrong with my turn signals?
    I have to Manually do my blinkers for them to work.All other lights work fine
     
    • HouseCallAuto
      3/21/2014 HouseCallAuto
      Replace the turn signal flasher under the dash. Its located on a bracket above the accelerator pedal.
  • grandmasgirl
    grandmasgirl - 2000 Buick Regal - Preventive Maintenance - 2/1/2014
    Both signal light flash when usig left turning signal
    When turning left using signal both turning signals turn on
     
    • Jimm
      2/1/2014 Jimm
      Need more information - what happens when the right turn signal is activated? If the right signal does not work - then suspect the turn signal relay or turn signal switch.

      The parts are readily available from these many on-line sources, www.partsgeek.com, www.rockauto.com, www.discountautoparts.com, www.autopartswarehouse.com, www.jcwhitney.com - to list only a few possibilities. For example, they (RockAuto) list the turn signal switch assembly (in the steering column) from around $105.00 for your vehicle.
  • joegold66
    joegold66 - 2000 Buick Park Avenue - Preventive Maintenance - 1/22/2014
    Why does heater blow cold and sometimes hot?
    My park Ave. has about 140,000 miles. I've changed the thermostat and put it in the correct way, changed serpentine belts, flushed and replaced the coolant. When it is at idle, cool air comes out the heat vents, when I rev. it to 1500 rpm heat comes out. When I ...
     
    • HouseCallAuto
      1/22/2014 HouseCallAuto
      Possible bad blend door actuator, sticking. Does your park ave have dual zone comfort settings? Temperature settings for the driver and pass side or is it just one setting?
      HouseCallAuto
      1/22/2014 joegold66
      dual zone comfort settings.
      HouseCallAuto
      1/22/2014 HouseCallAuto
      When it starts to blow cold air, Is the cold air coming out of all vents or just one side or the other?
    • joegold66
      1/22/2014 joegold66
      all vents. defrost, rear.
    • HouseCallAuto
      1/22/2014 HouseCallAuto
      So with all details in that I needed to know, your cause is a partially clogged heater core. if you go to a garage they will sell you a new heater core at a huge cost. You can very likely unclog this one and it will be as good as new. use compressed air and blow air into the inlet or outlet tubes of the heater core. Do it several times and inbetween, put more water into the core. The water assists in unplugging and pushing on the junk that built up in the core probably in one spot when it gets hit with some air pressure. Just one thing though, don't let the tip of the blow gun seal off the pipe where you are blowing in the air because you don't want the core to have to feel 100+ psi. Wrap a rag around the tip and the inlet and that will allow sufficiuent blowby. Put a rag around the outlet so you don't get a bath when you pull the trigger. Do it a few times and then hook up the hoses again and try the heat. You will be amazed and you will feel like you dodged a bullet.
      HouseCallAuto
      1/22/2014 joegold66
      Thanks a million. I will try that and let you know the hot results.
  • AutoMD Member
    AutoMD Member - 1998 Buick Regal - Preventive Maintenance - 1/2/2014
    Dash Lights Dim when starting;
    The car wouldn't start, just got click click click. Jump started it and ran it for awhile. The next time I started it, the dash lights were very dim for a bit, then got brighter. Help? This just started.
     
    • John's Auto Repair
      The dash lights dimming while cranking engine is not abnormal. However I would suggest you have
      your starting/ charging system tested. Most auto parts stores will do that for free.
  • AutoMD Member
    AutoMD Member - 1994 Buick Regal - Preventive Maintenance - 12/25/2013
    Oil has a slight smell of gasoline
    About 160,000 miles and i just changed the oil, while doing so i noticed a gasoline like oder in the used oil, what are the most common causes?
     
    • CVO
      12/23/2013 CVO
      Check the positive crankcase ventilation ( pcv ) valve, it may be plugged up and restricted the blow by gases from the crankcase to recirculate.
      CVO
      12/23/2013 CVO
      PCV Valve
      1994 Buick Regal 3.8L SFI OHV 6cyl
      The PCV Valve is located:
      Under hood, center, upper engine area, top of engine, mounted in passenger side of intake manifold
    • bear.1216
      12/25/2013 bear.1216
      Check the fuel pressure regulator also. I have seen leaking regulators that will flood the engine with fuel when the diaphram leaks. You can easily check for this by removing the vacuum line from the regulator while the engine is running. When you remove it there should be no fuel present and the line should be dry. If you remove it and it is wet or spurting fuel then it is bad. This problem is common on 90s GM vehicles. It would also cause extended cranking when warm, hard starting and excessive fuel consumption. Usually would start fine in morning then you drive to store and shut it off when it is hot. When you come back to start, the engine cranks over for a long time and is hard to start. The regulator should be attached to the fuel injector rail and will have a small plastic vacuum line attached to it. It will be identified on the underhood vacuum diagram and emmisions sticker. Other causes would be leaking injectors, clogged PCV, plugged exhaust or engine misfire. Your vehicle may just need a tune-up.
 
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