Question about 1999 Chevrolet Silverado 1500

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Need plug gap for 2003 4.3 chevy truck

What is the spark plug gap on a 2003 chevy half ton

Posted by easonirrigat on

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  • Anonymous Apr 27, 2009

    I need spark plug gap for 2003 chevy 5.3L silverado

  • Big Poppa Marv
    Big Poppa Marv May 11, 2010

    what is the size of your engine?

  • Anonymous Mar 15, 2014

    Spark plug gap on 2005 chevy malibu LS 2.2l

  • Anonymous Mar 18, 2014

    Need gap size

  • Anonymous Mar 23, 2014

    spark plug gap



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The plug gap is -- .060

Posted on Dec 06, 2008


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Spark plug gap for 2003 chevy malibu l 3.1 liter

Your owners manual shows .060 spark plug gap.
Different spark plug manufacturers may list different gap specs.
If you don't have an owners manual you can read it online.

Dec 14, 2016 | 2003 Chevrolet Malibu

1 Answer

Spark plug gap

Hello Josh,
You will find the answer here:
1993 Ford F350 Spark Plug

BTW it's gap is .044"

Good Luck
Rich Lilja

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there is a decal under the hood somewhere that has the plug gap on it. I think the gap is .052".

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How to change spark plugs in 2005 chevy silverado ?

half of the plugs will be on the left, and half on the right of the engine. You will find a cable going in between the exhaust heads, those cables go to the plugs.

Use a plug puller to reomve the caps with out damaging them,

then remove the spark plugs with a socket designed for spark plugs, then verify the proper gap on the new spark plugs

install the new plugs,

place the caps back in the same spot they came from

the caps should make a clicking noise if they seat right.

Dec 27, 2010 | 2005 Chevrolet Silverado

2 Answers

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2.0L engine--0.040 in.

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Oct 17, 2009 | 2003 Chevrolet Tracker

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My 1989 gmc half ton truck will die out when truck rpm or idle drops down.

happens mostly in reverse at very low speed. change spark plugs to an ngk, increese gap by 0.01 and advance distributer about 1 or 2 digrees to increase idle from around 800 to 850 or 900.

Jul 17, 2009 | 1989 GMC Suburban

1 Answer

Spark gap for chevy 8.1L 2003

Frank, look under your hood for a "catalyst" sticker. It should have your spark plug gap listed on that sticker along with the size of your motor, etc. Some of the newer vehicles aren't listing it there anymore, but it should also be listed in your owners manual in your glove box - if you still have it. Check the alphabetic index in the back for spark plug gap and if it's not there, check specifications.

Jun 12, 2009 | 2000 Chevrolet 2500

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