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-   -   Spark plugs change (https://www.chevyhhr.net/forums/problems-service-repairs-42/spark-plugs-change-57590/)

aradmahogany Sep 16, 2016 09:09 AM

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

shyoung2 Dec 6, 2023 06:17 PM

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

donbrew Dec 6, 2023 08:14 PM

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

RJ_RS_SS_350 Dec 6, 2023 08:28 PM


Originally Posted by donbrew (Post 942710)
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!

donbrew Dec 6, 2023 09:24 PM

5 years ago.

Oldblue Dec 7, 2023 06:55 AM

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

PulpFriction Dec 7, 2023 06:13 PM

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

sleeper Dec 7, 2023 07:57 PM

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. .

Beejmamdude Jan 26, 2024 11:20 AM


Originally Posted by donbrew (Post 811184)
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.
https://cimg6.ibsrv.net/gimg/www.che...a9c164f2e3.jpg

firemangeorge Jan 26, 2024 11:45 AM

Amazon’s fit guide is WRONG.
Look in your owners manual. The AC Delco part # is right there.
41-103


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