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- 2nd Generation S-series (1995-2005) Tech (https://blazerforum.com/forum/2nd-generation-s-series-1995-2005-tech-41/)

- - spark plug gap (https://blazerforum.com/forum/2nd-generation-s-series-1995-2005-tech-41/spark-plug-gap-35514/)

ijamm

10-05-2009 07:29 PM

spark plug gap

I have a 2005 blazer with ac delco plugs
the gap is at .130 right know, does anybody no the right gap

swartlkk

10-05-2009 08:29 PM

Should say right on the emissions sticker on the core support. I believe it is supposed to be 0.042".

Licklog

10-05-2009 10:37 PM

I believe mine for AC/Delco is .060", but definitely check the emissions label.

2doorblazer

10-05-2009 10:43 PM

my 98 (W) is gaped at .060 ac/delco

BlaziNator

10-05-2009 11:38 PM

Any parts store should have this info.

portcqb

10-05-2009 11:59 PM

Yah my 97 is .60 per the emission sticker the manual says .45 though,so find that emissions sticker they forget to update the manuals.

antything2

10-06-2009 12:43 AM

my clymers manual says .045

David Pomeroy

05-13-2020 07:50 AM

Gap size is .045 I'm almost 100%

Quote:

Originally Posted by ijamm (Post 251604)

I have a 2005 blazer with ac delco plugs
the gap is at .130 right know, does anybody no the right gap

.045 is the gap I believe

LannyL81

05-13-2020 07:59 AM

0.130"....??..are you sure of this measurement?
Is this for a 2005 Blazer, 4.3L V6 or a Trailblazer, 4.2L inline 6?

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