Question about 1999 Buick Regal

2 Answers

99 buick regal supercharge starts fine in the morning but after accelerating cuts off

The car would start fine in the morning after driving around the block or accelerating it cuts off and would not start check fuel pressure good change spark plugs and ignition wire check eng lght on says random multiple misfire

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  • Ras akai Feb 24, 2012

    fuel pump was changed there is a noise coming from the supercharge want to believe it is the unit changed fuel pressure regulator. spark plugs are black and smells like gas car cranks fine the boost valve cap came off tied it down the car will start if i open some soure of vacuum but will not run properly if i close vacuum source it cut out

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2 Answers

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  • Buick Master
  • 2,431 Answers

You have a MAF and MAP, The mass air flow signal varies with engine load.It is attatched to throttle body. This if it is the primary signal can cause the problem you desribe try and disconnect it and see if it idles properly. The next item you need to inspect is the MAP ,manifold air pressure this is a back up for the MAF sensor.If this sensor fails you will not accelerate correctly and stall out flooding the vehicle with fuel. This monitor the MAF and your EGR. If the EGR valve is stuck open the vehicle stumble and stall out and affect the performance of the MAF and MAP.Make sure your MAP is connected and the vacuum hose is attatch this item is located at top rear engine compartment near fuel injectors

Posted on Feb 24, 2012

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  • Buick Master
  • 2,620 Answers

Sounds like the fuel pressure regulator maybe faulty.Pull vacuum hose off the fuel pressure regulator and the map sensor and if you see any fuel in them then replace the regulator.

Posted on Feb 24, 2012

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Posted on Jan 02, 2017

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SOURCE: wheres the supercharger oil plug in the buick regal/1999

if you look on the top of your supercharger, you will see it. u have to get it out with a hex screwdriver

Posted on Feb 06, 2009

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SOURCE: 1990 buick regal 3.8L- Backfires, stumbles on acceleration

most likelly it is your fuel pump is not puting godd fuel pressure
have the fuel pressure test and if it is low have the fuel pump and filter replaced

Posted on May 28, 2008

  • 14036 Answers

SOURCE: Car starts but won't stay running it's a 99 buick

CHECK FUEL PRESSURE IT SHOULD BE 41 - 47 PSI. IF NOT REPLACE FUEL FILTER.IF NO CHANGE. REPLACE FUEL PUMP.IF FUEL PUMP IS GOOD.YOUR PROBLEM COULD BE A INTAKE LEAK OR SPARK IGNITION PROBLEMS.ALSO USE A SCANNER TO CHECK FOR FAULTY SENSORS OR THEFT DETERENT PROBLEMS.

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SOURCE: 99 Buick Regal LS dual climate control. No heat passenger side.

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GMJunkie
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SOURCE: Need Cylinder head bolt torque specs and sequence

  1. Install the cylinder head gasket. Ensure the arrows point towards the front of the engine. The left cylinder head gasket has the letter L stamped next to the arrow.
  2. Notice
  3. This bolt is designed to permanently stretch when tightened. The correct part number fastener must be used to replace this type of fastener. Do not use a bolt that is stronger in this application. If the correct bolt is not used, the parts will not be tightened correctly. The system or the components may be damaged.

  4. Install the cylinder head.
  5. Install new cylinder head bolts. Tighten
    Tighten the cylinder head bolts to 50 N·m (37 lb ft) in sequence.
  6. Use the J 36660-A to rotate each cylinder head bolt 120 degrees in sequence. Use the J 36660-A to rotate the four center cylinder head bolts an additional 30 degrees in sequence. Refer to Notice Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

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Posted on Mar 10, 2010

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