Spark plugs change

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09-16-2016 | 10:09 AM

#21

aradmahogany

Senior Member

Joined: 09-17-2013

Posts: 1,408

From: Tampa, Florida

Turn till tight then about an 1/8th or 1/4 turn after that. No more or less. Otherwise just torque em to I THINK 15 FT/LB

12-06-2023 | 07:17 PM

#22

shyoung2

Joined: 12-04-2023

Posts: 5

From: Iowa

Don,

Would you recommend OEM or aftermarket or does it even matter? The car has 140,000 miles only thinking of changing because I have the opportunity to do so!

Thanks,

Shawn

12-06-2023 | 09:14 PM

#23

donbrew

Moderator

Joined: 01-23-2009

Posts: 25,345

From: Fredericksburg,VA

If you are asking about spark plugs use ONLY ACDelco 41-103. They should be changed at 100,000 miles, many last much longer.

12-06-2023 | 09:28 PM

#24

RJ_RS_SS_350

Moderator

Joined: 05-01-2014

Posts: 8,174

From: California

Quote:

Originally Posted by donbrew

If you are asking about spark plugs use ONLY ACDelco 41-103. They should be changed at 100,000 miles, many last much longer.

Just like you said in post #2!

12-06-2023 | 10:24 PM

#25

donbrew

Moderator

Joined: 01-23-2009

Posts: 25,345

From: Fredericksburg,VA

5 years ago.

12-07-2023 | 07:55 AM

#26

Oldblue

Administrator

Joined: 10-13-2011

Posts: 37,843

From: Welland,Ont Canada

The song remains the same! As Donbrew states only install those specific spark plugs

12-07-2023 | 07:13 PM

#27

PulpFriction

Senior Member

Joined: 12-05-2014

Posts: 2,687

From: Northern Ohio

$3 x 4 = $12 rebate on 4 iridium plugs through the end of the year. Can be submitted on line.

12-07-2023 | 08:57 PM

#28

sleeper

Platinum Member

Joined: 01-09-2007

Posts: 15,984

From: SE USA

And installing them in a hot engine, then torque to spec, can cause the threads to pull (strip) as engine cools & contracts.
Cold install is safest bet. .

01-26-2024 | 12:20 PM

#29

Beejmamdude

Member

Joined: 03-01-2022

Posts: 60

From: Portland Oregon

Quote:

Originally Posted by donbrew

DO NOT TOUCH THE GAP. GET ONLY 41-103.

41-103 comes gapped correctly and can be damaged trying to change. Other cheap plugs may have a different spec, plugs are different. Somebody may have fat fingers. Trust the box, not the internet typing skills.

Change them when you want to; but, the "book" says 100,000 miles. I have seen them last much longer.

From the Service Manual:

hey Donbrew. Just to be clear Ac Delco 41-103 is one size right. Cause amazon is telling me Ac Delco 41-103 does not fit my HHR I've attached a screen shot below.