2011 2.2 engine 80000+ miles Original plugs ! ALL 2011 parts on now !
Planning on ACDelco plugs 41-103 Iridium,
Serpentine belt
Should I also change the
Spark Plug Coil on plugs ?
Brake fluid flush
Battery because it is 8 years old :O starts fine !
Thinking maybe the radiator hose's and anti freeze? So what is overkill ? lol And what is the advice from you gear heads on what should be done or added in your opinion ! I just want to stay on top of everything Thanks

 

fix whats broke.
At 800,000 miles you should be installing your eighth set of plugs.
Brake fluid flush is a good idea.
Dex-Cool has a 5 year shelf life.

 

Thanks.. I was thinking longer then 5 on Dexcool, My truck anti freeze in 100 or 150kk I believe but no way in heck would I wait that long !But I will add the Dexcool a a must to the list LOL fat fingers gave me the extra 0 lol

 

80,000 not 800,000. Plugs are good for 100,000 miles, so you don't have to change them. But probably good to change them before they fuse to the head.

 

LOL yea fat fingers gave me more mileage lol I know plugs good for 100k but for the price of plugs I will 86 them sooner! Trying to get the little things fixed before they break or close to needing ! I plan on keeping this ride alot longer :) I like the 28 mpg, vs my truck 's 21mpg ! The serpentine belt looks like a PIA to change :O
Thanks everyone for your input!

 

A tip change out the tensioner and pulley with the new belt.

 

Thanks for the advice ! Getting it done next week. I assume 2 gal anti freeze is enough for replacement ? I can not find that parts post we have here :O SOmehow I lost the book mark :O

 

Here's the capacities list from the Owners Manual. How many gals. will depend on if you're using straight Dexcool or the 50/50 premix.
FYI. Only Dexcool for the HHR. None of the green stuff.

Cooling System
2.0L Engine............................................ ........ 9.2qt ...8.7L
2.2L Engine............................................ ........ 7.4qt ...7.0L
2.4L Engine with Automatic Transmission...... .....8.5qt ...8.0L
2.4L Engine with Manual Transmission ................8.7qt ...8.2L

 

George Thank You for the reply ! I should have added it is the 2.2 ! I could not find my manual . And yes it will be DEXCOOL . I know with my RAM 1500 staying with the manufacture specs on anti freeze is crucial ! we have Dexcool at the parts store I work at, so will grab a few jugs ! Along with AC Delco Plugs 41-103, with a few other goodies :)Trying to stay pro active on my HHR :)

 

Those part numbers

https://www.chevyhhr.net/forums/comm...-thread-48833/

careful now some some are obsolete, some have superseded


Get that Dexcool premixed 50/50 , a lot less mess then mixing it yourself