Question about 1997 Buick Century

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How do i remove 3 rear spark plugs on 1997 3.1 buick

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Can get to them from underneath

Posted on Feb 07, 2010

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How to remove plastic cover to change spark plugs 1999 Buick Le Sabre

Remove the oil filler neck, you can then lift up on the front of the cover, it interlocks with a rear mount, just lift up and pull out.

Jun 07, 2012 | 1997 Buick LeSabre

1 Answer

I am looking for a spark plug wiring diagram for 1997 buick park ave 3.8 to see if the wires may be crossed.

Sometimes the coil packs are numbered from the factory --- Firing Order 1-6-5-4-3-2
Ignition Coil Removal & Installation To Remove:
Ignition Coils gm-02-38-1037.gif

  1. Before servicing the vehicle, refer to the service precautions in the beginning of this section
  2. Disconnect the spark plug wires from the coils
  3. Remove the fasteners securing the coil(s)
  4. Remove the coil(s) from the ignition control module
To Install:
  1. Install the coil(s) to the ignition module
  2. Install the coil fasteners
    • Torque to 40 in-lbs (4.5 Nm)
  3. Connect the spark plug wires to coil assemblies
Ignition Module Removal & Installation To Remove:
Ignition Coils gm-02-38-1037.gif

  1. Before servicing the vehicle, refer to the service precautions in the beginning of this section
  2. Turn the ignition OFF
  3. Disconnect the 14-way connector from the ignition module
  4. Note the position of the spark plug wires and disconnect from the coils
  5. Remove the fasteners securing the coil(s)
  6. Remove the coils and the Ignition module from the bracket
To Install:
  1. Install the coils and the ignition module to the bracket
  2. Install the fasteners that retain the ignition coils to the ignition module
    • Torque the fasteners to 40 in-lbs (4.5 Nm)
  3. Install the nuts and washers that retain the ignition module to the bracket
    • Torque the screws to 70 in-lbs (8 Nm)
  4. Connect the spark plug wires to the coils assemblies
  5. Connect the 14-way connector to the ignition module
    • Torque the screw to 19 in-lbs (2.1 Nm)
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Oct 26, 2010 | 1997 Buick Park Avenue

1 Answer

How do you access the 3 rear spark plugs and wires on a 1999 buick century ?

remove the front engine mount that is at the top of the engine attached to the top of the radiator support. it looks like a dog bone. after removal, rock the engine forward or use ratchet typoe tie down strap to move the engine forward to access the rear plugs and wires.

Sep 16, 2010 | 1999 Buick Century

1 Answer

1997 biuck regal firing order?

1-6-5-4-3-2 is for the 3.8 liter engine
1-2-3-4-5-6 is for 3.1 liter engine

Apr 21, 2010 | 1997 Buick.5 Regal

2 Answers

How to change the rear 3 spark plugs on a Buick regal LS 2002

metal sheild comes of with sparkplug wire,just spin and pull should come out then remove sheild and slide on new wire and connect back to plug,its just a slide on heat sheild.good luck.

Oct 04, 2009 | 2002 Buick Regal

1 Answer


You have to remove the front passenger side tire and access it from underneath.

Aug 21, 2009 | 1997 Ford Ranger SuperCab

1 Answer

Best way to remove rear 3 spark plugs 2000 buick Lesabre

Most GM fwd v6s' have to be rolled forward to change the rear plugs. Its not as hard as it sounds though. Usually removing the air cleaner box and then taking the bolts out of the two top wish bone mounts allows you to roll the engine forward enough to change those plugs. You'll just need something to hold the engine forward while you change them. Like maybe a friend or a strap. I hope this helps you.

Aug 18, 2009 | Buick LeSabre Cars & Trucks

1 Answer

Cannot change 3 rear spark plugs on 1999 Buick park avenue

there is a special tool for this job but I have cheated on this but you ned to be careful when doing this.The wishbone shaped mount on the front going from motor to front of vehicle, remove and it allows the motor to tilt.

May 23, 2009 | 1999 Buick Park Avenue

1 Answer

Changing spark plugs

First remove the big plastic cover that covers the motor by taking off the oil fill spout.Then the plastic cover should just lift right off..No you should be able to see all of the front ones and the rear ones are a little tricky..You'll need a 3 to 6in. extension with a swivel next to the 5/8 deep well socket.Taking them out is usually the easy part to which reinstalling is a little more trickier.Make sure the plug socket you are using has the rubber piece inside of it because you don't want to break the plugs..And when putting rear ones in to use an old plug wire end or just the socket and three inch extension to start the threads because you dont want to cross thread them.After you have atleast threaded them in as far as you can get them and they went atleast 3 to 4 revolutions tighten them up and finish the rest in process you be great..Good luck to you and am always here to help you and anymore questions will be glad to help......

Mar 30, 2009 | 1997 Buick Riviera

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