Question about 1991 Buick Regal

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1991 buick regal 3800

I have a 91 buick regal limited 3.8L can ran fine had to replace altenator and battery .Now the car wont start.

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  • yadayada
    yadayada May 11, 2010

    Does this car have a factory anti-theft system, if so you may have armed it when the battery was replaced.

  • Anonymous Mar 13, 2014

    I am replacing the altenator and I have to loosen the fan belt. Where is the tension release to change out the altenator

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  • 16 Answers

Check the batt. connector

Posted on Dec 15, 2008

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1 Answer

1991 Buick Regal will not start on cold mornings. Battery has been replaced. What else could it be?


Higher cold cranking amp rating on the battery. 850 or higher. Those old Buick motors get heavy in the cold

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1 Answer

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Volt light on indicate the altenator is not charging the battery the temp light means it's over heating and difficult steering means the power steering isn't working properly.
Common to all of these would be your serpentine belt which drives all of these items. have it replaced

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1991 Buick regal will not start there is spark


Then it has to be fuel, compression, or air. Check for fuel pressure first, if it has fuel pressure check for compression, must have a minimum of 100 pounds to run. Last check for air supply being restricted(very very very rare). if it has all of these and sprk it has to run as long as its timed right which is impossible to get out of time on a fuel injected engine like this unless someone mixed the plug wires up on the coil pack at which point it will be back firing out the intake and exhaust.

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egr valve is not opening up when the engine reaches it normal operating temperture

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