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Buick engine repair questions and answers

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    BROOKS - 1995 Buick LeSabre - Engine - 10/22/2010
    • matt
      10/22/2010 matt
      go up one side. you need 2 check oil pump also, or replace it, its got 2 be blead..
  • reggies1
    reggies1 - 1997 Buick LeSabre - Engine - 10/22/2010
    Trouble codes on my scantool
    trying to find out what code-p1441 on my scan tool, it's inexpensive
    • Mike
      10/22/2010 Mike
      EVAP system flow during non-purge conditions
      10/22/2010 reggies1
      thanks, code for evap was taken care of (code p0446)
      10/22/2010 reggies1
      so i found out both codes are evap related thank u
    • matt
      10/22/2010 matt
      try this, put your code in ,you will find what you need
      10/22/2010 reggies1
      thanks for the site, going there now
  • mike
    mike - 1995 Buick Regal - Engine - 10/22/2010
    My coolant light comes on and none of my fans work
    126000 miles i replaced the pvc valve
    • mike
      10/22/2010 mike
      is it a sensor on the radiator
      10/22/2010 mike
      if the thermostat is bad will it keep both of my fams from comming on
  • william
    william - 1997 Buick LeSabre - Engine - 10/22/2010
    Cold air in winter hot air in summer
    90,000 miles
    • gerry comer
      10/22/2010 gerry comer
      need more details,have you checked thermostat or AC expansion valve
  • Ricko
    Ricko - 2000 Buick Regal - Engine - 10/21/2010
    Regal GS. fianally got an error code. Missing /running rough very inconsistant. code was "mass air frequence low"
    The problem seems to surface when engine is warm or under load. A real tough one to solve ! Mass air moldule tested OK. Plugs and wires changed. Ignition module checked.
    • AWACS E3 Sentry
      10/21/2010 AWACS E3 Sentry
      I believe you got the P0102 DTC, in this case, your MAF can be disconnected, dirty, faulty. What you dont want to happen is your ECU is busted, but dont worry, its a very rare case
    • HouseCallAuto
      10/21/2010 HouseCallAuto
      Replace the MAF sensor after trying to clean it. The cleaning may not help. Probability is greater than 90% if the code is a P0102.
      11/4/2010 Ricko
      Replaced MAF as you suggested and running good so far. It was replaced once before but box appeared open and I believe the part was returned bad. Thanks
  • gerry comer
    gerry comer - 1995 Buick LeSabre - Engine - 10/21/2010
    Car acts like a shortin wiring horn blows when battery connect replaced brain box code driver1&2 input high voltage,1640
    and 1650 was also code 1610 they said it was computer car does not shift out of foward gears used the chip out of used comp. car shifted wrong chid made other codes show up but tranny shifted,could it be my computer chip,or are codes 1640,1650 shift modules no one ...
    0 answer
  • uzimoore26
    • HouseCallAuto
      10/20/2010 HouseCallAuto
      Apparently nobody is taking you seriously because if one of my customers gave me their 97 Park Ave and said fix my light it would be fixed and billed. Maybe they don't know what to do. Try a different shop? Or try it yourself. Buy a $50 code reader, attach it to the diagnostic connector under the driver side dash and read the fault codes and then repost with those codes and we can help.
  • Joe
      10/19/2010 MOONSTER_TOOLZ
      The fuse or the dash voltage regulator or the gauge is defective. Most likely replacement is the best way to resolve this.
    • david
      10/19/2010 david
      fuel sender unit in the fuel tank in bad replace sender unit and fuel pump to fix
  • burke
    burke - 1999 Buick Park Avenue - Engine - 10/19/2010
    • HouseCallAuto
      10/19/2010 HouseCallAuto
      Under the car along the LH frame rail. Great idea to replace it if it has been in there for more than 30K. It will not likely solve your stall unless the filter is totally clogged where you cannot blow your breath through it after you remove it.
    STACY EJLKS - 1993 Buick Roadmaster - Engine - 10/19/2010
    Why does my oil pressure stay on zero sometimes, could my oil pump be stopped up
    this happens all the time, its like i dont have any power and cant pick up any speed
      10/19/2010 MOONSTER_TOOLZ
      Did you check the condition of your engine oil if low of contaminated? Add oil or change the oil with filter if necessary. Check also if air filter is blocked. When the last time you replace the fuel filter, maybe it needs to be changed. Inspect all above recommendation and correct it. If problem persists just post another question with its details.
  • kkey
    kkey - 2001 Buick Regal - Engine - 10/19/2010
    How do i check my fuel pump to see if it's defective?
      10/19/2010 MOONSTER_TOOLZ
      First check the fuel pump relay, here it is;

      Faulty Fuel Pump Relay Symptoms

      To identify the malfunctioning symptoms of any car part, you must observe its effect on working of connected parts. Every part of the engine assembly is linked to the working of other parts. So bad fuel pump symptoms can be identified by the effect of the relay malfunctioning on connected parts like the fuel pump and the car engine. Here are the prime bad fuel pump relay symptoms:

      Engine Goes On a Strike
      One of the symptoms of a faulty bad fuel pump relay is the engine cranking up but not starting. This point towards a problem with the fuel delivery system and it may be that the fuel pump relay, which is the culprit.

      Erratic Engine Function and Delayed Start
      Erratic functioning of the engine at the start and delay in starting up can be an indication of a faulty fuel pump relay. That is why; if you consistently notice a delay in engine starting, check the fuel pump relay.

      Absence of Fuel Pump Working Sound
      Once the relay stops functioning, the fuel pump will not switch on and the familiar sound of fuel pump working will not be heard. Ears trained to hear the normal sounds made by the car at start will notice the difference.


      Symptoms of a Bad Fuel Pump

      Fuel pumps stop working due to a variety of reasons. Once this happens, the supply to the injectors is automatically stalled and the vehicle stalls as well. The effect is similar to the problem of running out of gas. Another problem associated with the pump is proper functioning of the electrical mechanism of the pumping system. The electrical supply consists of devices like the relay and the fuse. If the fuse or the relay develops problems or blows off, it will again result in breakdown, as the driving mechanism for fuel supply is cut off.

      Another reason of a bad fuel pump is overheating. If the fuel pump gets heated frequently and within few minutes of turning on the vehicle power, it is a sign that the pump needs replacement. A bad fuel pump will also show signs of frequent stopping or intermittent breakdown. It will work for around 15-20 minutes and stop working. Once, the vehicle is allowed to remain idle for around 30 minutes, the engine gets cooled off and the pump functions normally. Such a problem is an indicative sign of a bad fuel pump.

      If the flow to the fuel injection system is not constant, the engine may develop problems. Signs include a hesitant start or a stumbling problem on ignition. If small, unwanted debris or grainy particles enter the pumping system it can cause vehicle breakdown, thus, abrupt stopping of a vehicle can also be considered a symptom of a bad fuel pump. If the filtering mechanism develops a problem or gets struck up with impurities, the engine will show symptoms like rough firing and fickle working. A reduction or drop in fuel supply to the engine causes symptoms of a low power engine and working problems if the problem persists for a long time.
  • Charles
    Charles - 1998 Buick Regal - Engine - 10/19/2010
    How to remove and replace valve covers
    gaskets are worn..oil leaks on to the engine.
  • brandolf
    brandolf - 1987 Buick Century - Engine - 10/19/2010
    Car starts and runs great until i cut it off and start it back then it wants to cut off when i stop
    it all started when the car over heated
      10/19/2010 MOONSTER_TOOLZ
      Perhaps the engine is overheating, that's why your engine stalls. Check the coolant level if correct adds if necessary. Conduct radiator pressure test to determine if there's a leak in the system; also a compression test for the combustion chamber. Check also the condition of your spark plugs may be they are worn to excess.
  • Ray
    Ray - 1988 Buick Reatta - Engine - 10/18/2010
    I hear a squeal in the engine compartment just after starting the vehicle. could this be the A/C clutch?
    the noise stops within two seconds after starting. the diagnostic center indicates low refrigerant and disengages the A/C.
    • Tifosi
      10/18/2010 Tifosi
      Its probably just a loose belt, i dont find any reason why your compressor will give a squealing sound because of low refrigerant.
  • clrominger
    clrominger - 1990 Buick Century - Engine - 10/18/2010
    No power out of coils
      10/18/2010 MOONSTER_TOOLZ
      Did you check the condition of your battery if it has a charge? Also its cables if properly fix and free from corrosions? Check the wiring from battery to starting motor as well as to the coils if worn or attachments is loose. If the coils are failing, replacement is necessary.