Question about 2000 Buick LeSabre

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How difficult is it to change the spark plugs? are they pre-gapped?

How difficult is it to change the spark plugs. are they pre-gapped?

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On a scale of 1-10 this is a 5, you must ALWAYS VERIFY PLUG GAP, yes most times they are gaped but now and then the box gets dropped and opp's zero gap.

Posted on May 22, 2009

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Spark plug gap for 3.6l engine 2009 Chevy Traverse


Spark plugs come pre-gapped now. There is no need to change the gap. If you want to check the gap, it is .044"

Jan 07, 2017 | Cars & Trucks

1 Answer

Hesitating on a 2006 Buick Lacrosse


this is for a 3.6L engine, should be the same either way. doesnt seem extremely difficult

  1. Turn the ignition OFF.
  2. Remove the ignition coil.
  3. Use compressed air in order to remove debris from the spark plug cavity.
CAUTION: Refer to Safety Glasses and Compressed Air Caution in Service Precautions .

NOTE: Clean the spark plug recess area before removing the spark plug. Failure to do so could result in engine damage because of dirt or foreign material entering the cylinder head, or by the contamination of the cylinder head threads. The contaminated threads may prevent the proper seating of the new plug. Use a thread chaser to clean the threads of any contamination.
  1. Remove the spark plug.
NOTE: Allow the engine to cool before removing the spark plugs. Attempting to remove the spark plugs from a hot engine may cause the plug threads to seize, causing damage to cylinder head threads.

INSTALLATION PROCEDURE
  1. Ensure that the spark plug gap is equivalent to the spark plug gap specification. Refer to Ignition System Specifications.
NOTE:
  • Use only the spark plugs specified for use in the vehicle. Do not install spark plugs that are either hotter or colder than those specified for the vehicle. Installing spark plugs of another type can severely damage the engine.
  • Check the gap of all new and reconditioned spark plugs before installation. The pre-set gaps may have changed during handling. Use a round feeler gage to ensure an accurate check. Installing the spark plugs with the wrong gap can cause poor engine performance and may even damage the engine.
  1. Install the spark plug.
NOTE: Be sure that the spark plug threads smoothly into the cylinder head and the spark plug is fully seated. Use a thread chaser, if necessary, to clean threads in the cylinder head. Cross-threading or failing to fully seat the spark plug can cause overheating of the plug, exhaust blow-by, or thread damage.

Tighten the spark plug to 20 N.m (15 lb ft) .
  1. Install the ignition coil.


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Aug 04, 2016 | 2006 Buick LaCrosse

1 Answer

SPARK PLUG GAP


Since about 1985 or so, almost all spark plugs are factory pre-set for the application.
That means, if you buy spark plugs new for a 1988 Chevrolet Caprice Classic 350 V-8 engine, they will come in the box pre-set to about .035, which is the proper gap. ( I do not have these numbers memorized).
About the only time you would change the factory setting is if you were racing or something, and if so, you'd not be asking this question.
God bless your efforts.

Sep 04, 2015 | Cars & Trucks

1 Answer

Spark Plug Gap for 1996 GMC Jimmy


They should be pre-gapped, but you should always check in case someone dropped the box.
The gap is .060

Jul 18, 2012 | 1996 GMC Jimmy

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What is the gap setting for the spark plugs a 2004 trailblazer?


I have been told by mechanics and 2 auto stores that the gap should be .043. I don't know where people are getting .060. but my plugs are .043 and my trailblazer does not misfire or run poorly. Also, check the gap always, even if it's pre gapped because the handling of spark plugs could cause a change in gap. IE the plug bouncing in the box, vibration, etc.

Aug 23, 2011 | 2002 Chevrolet TrailBlazer

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Engine is makiing gogling sounds after changing spark plugs wires cap and rotor.


Pull the plugs and recheck the gap - no such thing as "Pre-gapped" I dont care what other people say. Also verify your resistance of your spark plug wires & routing.

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I am trying to find the gap for the spark plugs of an 04 mazda rx8


plugs for rx8s are pre gaped. dont try to change it youll damage the very expensive plug

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they come pre gapped with collars to prevent the electrodes from getting bent .platinum and iridium plugs will have the surface damaged if you were to adjust them with a feeler gauge,like old plugs had to be gapped. ac or ngk plugs come pre gapped in the box.

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How do i remove the spark plugs from a 1990 toyota 4runner 6cyl?


there are spark plug wires in either top or side ,pull them off one at a time and change them with a spark plug socket mak sure you do them one at a time or you will get the firing out of wack thank you david southard

Apr 10, 2009 | 1990 Toyota 4Runner

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