Question about 1991 Buick Riviera

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Can't locate spark plugs on a 1991 buick riviera

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They are at the end of the spark plug wires by the hot exhaust manifolds.

Posted on Jun 15, 2009

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1 Answer

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The compressor is mounted on top of the rear suspension crossmember at right side of vehicle. The relay is located on bracket by air compressor

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Spark plug firing diagram for '97 buick riviera supercharged v-6


1997 Buick Riviera 3.8 liter SC V-6 VIN "1"
or
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I hope help with this; remmeber to rate this.

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How do I adjust the air suspension on a 1991 buick riviera


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May 18, 2010 | 1991 Buick Riviera

1 Answer

Crank sensor location on a 1991 3100 motor


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Oct 15, 2009 | 1991 Buick Riviera

1 Answer

Spark plug location 1991 buick riviera


can't clean spark plugs...and DO NOT buy Champion brand, use Autolite or Delco. Your plugs are accessible through the inner fenderwells...remove front wheels to get to them.
P.S. do yourself a favor and do this as well, or in advance of the plugs...go to Advance Auto and buy "SeaFoam" gas additive and follow directions...drive at least 100 miles.
Good Luck

Jun 15, 2009 | 1991 Buick Riviera

1 Answer

1991 Riviera will not start


fuel filter,or pound on fuel tank lightly while trying to start with rubber mallet

May 31, 2009 | 1991 Buick Riviera

1 Answer

Riviera left blinker


Hi there, the actual relay has failed. its stuck in the on or off position. replacing this relay module will fix this issue.

Feb 25, 2009 | 1991 Buick Riviera

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