my wifes 06 hhr is running a little off here lately. it has 102,000 and i think its time to do a tune up, so my question is what do i need to change besides the plugs and wires while im in there!!!

 

Really?? no replies!!!

 

I would do the air filter and the oil if you have not done so..Let me look in my manual and I will reply back in a few minutes

 

Ok got it...

I am using my 2009 HHR manual I figure is the same as the 2006...

Inspect the fule system for damage or leaks..

Inspect the exhaust system.

Change the air filter

Change the Automatic transmission fluid.

Do the spark plugs..

Change the engine cooling system.

Inspect the accesory and the drive belt...

I would change the cabin air filter...

Not sure if this car has them or not but back in the days when I had my ford Focus I

would do the fuel filter.

Hopefully thank helps...

John

 

Good luck...

 

thanks tech-guy!! iyo should i check the ign mod or anything like that??

 

You don't need to change the trans fluid unless your driving qualifies as "severe service' (taxi driving, frequent towing, etc).

 

All the points were hit. IMO I do not subscribe to the trans fluid which is never changed. I have done extensive research on the transmission and aside from the owners manual I have seen in countless places where you can change that fluid. Even here!

Unless someone else has concrete information, the most I gathered is this is a 4T60-E/4T65-E automatic 4 speed trans. Which has clutch bands like any other transmission and has a filter like every other trans which is a wearable part. I do not know if this was a designed service interval but no transmission is bullet proof and given that some examples state service, daily driving can also count for that.

It is not hard to change the fluid, it is different from past years where there is some special care needed but IMO 100k it should not hurt to flush the fluid, you never get it all anyways so it mixes and IMO would show a difference in feel.

My HHR has 21k on it and I fully plan a Flush @ 50k. Given its driven 1-5 Miles one way to work and only time it gets major milage is freeway use.

My matience over haul is...

Fluids (oil, trans, differential (if required), coolant)
Plugs (GM, OEM)
Wires (GM, OEM)
Filters (Oil, Trans, Cabin, Air, Fuel)
Brakes (inspect, replace, adjust (rear drums)
Tires (inspect for dry rot)
Battery (have tested
Belts (inspect and/or replace)
Detail (have a clean car just drives better)

 

Radiator hoses. Gotta change them! Remember that they rot from the inside out and usually burst without warning. If your changing antifreeze you already have to drain out the old stuff, so go ahead and put on new hoses. Heater hoses,by-pass hoses, etc. Anything rubber and part of the cooling system is suspect after 100K miles.

 

Thats right-never keep the same rubber on...