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Buick engine repair questions and answers

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  • TOM
    TOM - 2007 Buick Allure - Engine - 11/16/2010
      11/16/2010 MOONSTER_TOOLZ
      Usually PCV valve is mounted on top of the cylinder head cover. Examine the cover, and look for a hose that is connected from the cylinder head to the intake manifold. The valve is inside the cylinder head cover. PCV valve is usually replaced along with the service change of spark plugs.
  • Sherry
    Sherry - 2000 Buick Century - Engine - 11/15/2010
    The gas gauge does not register correctly--what could be wrong?
    I had put 20.00 of gas into my car, parked it overnight and when I started it in the morning the gauge read empty with the gas low warning light flashing. As I started driving the gauge went to the half full mark and then went up and down ..............from empty ...
    • HouseCallAuto
      11/15/2010 HouseCallAuto
      You need a new fuel pump module assembly. It comes with the fuel pump and fuel level sensor both. Buy ACDELCO only.
  • e.wilch
    e.wilch - 1991 Buick Century - Engine - 11/14/2010
    How would I replace the gaskets around my engine? The leak seems to be coming from the front of the engine. (front right
    front right - about a 1/2ft or ft in front of the oil filter. what gasket would I need? Oil pan gasket maybe or which would be suggested?
    • mopar
      11/14/2010 mopar
      leaking on top of oil filter?...valve cover gasket
      12/20/2010 e.wilch
      found out where the leak ended up being an oil pressure sensor, very cheap and easy to fix. :)
  • albert jones
    albert jones - 1993 Buick Century - Engine - 11/14/2010
    A loud knocking noise coming from bottom of engine.I checked it,s not the crank or rodbearings .
    Sounds like it,s coming from the oil pump. Vehicle has good power and oil pressure. Coming from the front of engine.When idiling sounds like someone got a hammer.
      11/12/2010 MOONSTER_TOOLZ
      Did you conduct a clearance check for the crankshaft and rod bearings? If the rod bearings are worn or loose enough to make a dull, hammering noise, sooner or later one of the bearings will fail, and when it does one of two things will happen: the bearing will seize and lock up the engine, or it will attempt to seize and break a rod. Either way your engine will suffer major damage and have to be rebuilt or replaced.

      This happens due to poor oil change maintenance, low oil pressure, using too light a viscosity oil, oil breakdown, dirty oil or dirt in the crankcase, excessive blowby from worn rings and/or cylinders (gasoline dilutes and thins the oil), incorrect engine assembly (bearings too loose), loose or broken connecting rod bolts, or abusive driving.

      Have the clearances check and test the oil pressure; replace the bearings and the oil pump if needed.
    • mopar
      11/14/2010 mopar
      if you don't think it's internal...check the harmonic balancer
  • kleekp
    • mopar
      11/14/2010 mopar
      use a test light, it will be the fastest way to tell
  • tina
    • HouseCallAuto
      11/14/2010 HouseCallAuto
      Will not damage the engine but could take its toll on the catalytic converter.
  • Noel
    Noel - 1989 Buick Century - Engine - 11/14/2010
    What causes the cars 3.3 liter engine to die when the vehicle decelerates and comes to a stop?
    When slowing to a stop, occasionally the engine will die. This has been happening for several years, and occurs with much greater frequency in warm weather, when temps are in the 90's. Until this fall, it NEVER died in cooler weather. If the engine dies as ...
    • HouseCallAuto
      11/14/2010 HouseCallAuto
      Try unplugging the electrical connector on the idle air control at an rpm slightly higher than normal idle and see if the stalling stops. if it does then replace the idle air control. If it is unplugged the idle speed will remain stuck at whatever rpm existed at idle at the time it was disconnected. So, the rpm cannot drop off and stall it.
  • mike
    mike - 1994 Buick LeSabre - Engine - 11/12/2010
    Blower moter runs intermitantly
    replaced moter runs when i tap the box by moter
    • vince^_^
      11/12/2010 vince^_^
      Check the wirings/connectors in your blower motor it might be loose. If possible check the condition of your blower motor it may be faulty by now due to normal wear.
  • mike
    mike - 1994 Buick LeSabre - Engine - 11/11/2010
    How to replace blower moter resitor
    • mike
      11/11/2010 mike
      located at fire wall just r&r cost 21.99 to 24.09
  • AA
    AA - 1993 Buick Regal - Engine - 11/11/2010
    While driving, engine suddenly stalls and will not restart.
    When trying to restart engine it sometimes will start and idle roughly for a short time. If accelerator is touched at all the engine instanly dies. If left for a day the engine will start right up and run for many miles untill it randomly stalls again.
    • MaK919
      11/11/2010 MaK919
      Possible dirty fuel filter or faulty fuel pump
  • e.wilch
    e.wilch - 1991 Buick Century - Engine - 11/10/2010
    Coolant stays in reservoir and is visible when radiator cap off, leaks sometimes
    When I drive more than 15 minutes or stop several times the car jerks hard and doesn't want to go and is close to overheating. I have a bad oil leak and manually start my fan before driving.(wire hooked to battery) What could be my problem(s)? The car sat for 2 ...
    • Hot Pursuit
      11/10/2010 Hot Pursuit
      For your oil leak, well of course we have to look for it right? Visually inspect your engine for any signs of wetness, also put a large piece of paper under your car and let it sit overnight, in the morning, check the paper for leaks and that will help you pinpoint the problem. Anyway since you told us that you have a bad oil leak, then you have to replace the gaskets around your engine, im not sure if you are up to the task or just leave the job to a mechanic.

      Now for the heating, i can only think of 3 things why it overheats

      1. Plugged radiator
      2. Stuck thermo
      3. Defective W. Pump

      Also, loss of oil in the engine contributes to overheating
      Hot Pursuit
      11/11/2010 e.wilch
      Okay, I just had a new water pump and thermostat put on. So, that leaves a plugged radiator. This makes since because it doesn't seem to be flowing from the reservoir to the radiator. How can I fix this problem? Would the intake manifold or heater core be possibilities also even though I don't hear of them often going bad? I looked up how to fix these and they look pretty complicated. My heat works but then it makes the engine light come on and car overheats and smokes.
  • Burie Collins
    Burie Collins - 1993 Buick Century - Engine - 11/10/2010
    How to hook up vacums
    found a vaccum line dis connected on intake dont know where it hooks up at
    • RC
      11/10/2010 RC
      The Chilton manuals usually have vacuum diagrams. You can pick one up at your local auto parts store for about $20.00.
  • ray
    ray - 1998 Buick Skylark - Engine - 11/9/2010
    Why does ignition fuse keeps blowing
    • darkmind
      11/9/2010 darkmind
      Check the condition of your wires in your ignition system circuit, you may have a short in your circuit. It is possible that one of your wires is frayed/broken or a damage wire is touching your vehicle’s body which is your ground.
    • HouseCallAuto
      11/9/2010 HouseCallAuto
      This fuse protects the ignition module so any wiring that attaches to the ignition module that shorts out or even the module itself internally shorted can pop the fuse.
  • kaqin
    kaqin - 1995 Buick Century - Engine - 11/8/2010
    Large oil leak front of engine not oil filter or value cover gasket
    • dew56
      11/8/2010 dew56
      there is a oil seal were the grank comes thrugh were the pullies are that may b were its coming from
    • cad
      11/8/2010 cad
      main barring seal
  • meathead806
    meathead806 - 1985 Buick Regal - Engine - 11/8/2010
    Im getting no fire to the plugs
    Im getting no fire to the coil pack i replace the coil pack, ignition control module, crank sensor. I had a dianosic done and he told me it was the crank sensor but i replaced it and it still just turn over but not starting. before it quit it would idle but wouldnt ...
    • cad
      11/8/2010 cad
      hello thats my favorit car check module up under cap
    • cad
      11/8/2010 cad
      sorry i didnt read all yr quest it may be yr timming belt