Good morning,

I like my HHR more than anything else I've driven. Really, it's the first car I didn't immediately start looking to replace once it was paid off.

I want to do some of the higher mileage stuff this year, which frankly hasn't come up in my entire life before.

Mine has 68k on it, and I've only done the brakes, speakers, filter, and those pesky cam solenoids (thanks, Forum members), but one thing I'm having done is the transmission fluid.

Now, I've talked to two people, who both wrench a lot (one was a garage manager in New York), and got two different bits of advice...

One says to have it fully flushed, getting it all out and changed.

The other says to just have the fluid in the trans changed without the full flush, because that can stir up bits that cause bigger issues later.

So, which is the more recommended option?

 

For a Owners Manual follow the link in my sig. That is explained in it. Both of yoy buddies are wrong.

 

Just curious. Since you didn't include any details, what year HHR is this ? Also, are you talking about an automatic or standard shift transmission ?

 

Welcome to the site, you've still got some driving to do till you need to change the fluid and filter, here is a great how to.

https://www.chevyhhr.net/forums/main...ge-easy-42736/



And as discussed GM gives guidelines, but you own the car so it is your decision as when to service the transmission

 

'09, automatic. 2.2, nothing special.

 

Well, I have read the manual. I've also read the Forum a lot. There are some who do it more often, some who say; 'not at all', and many points in between.

I think I'm just not used to having gotten a new car and keeping it so long. For many years, I drove clunkers that always needed something done. I want to baby this one a while.

I'm currently commuting around 250 miles a week, and wanting, for once in my life, to stay ahead of problems.

 

The manual is the authority on the subject. It says change fluid at 100,000 IF severe service (defined in the manual). But, you said you read that and want to know what others say? I don't know what you're asking.

There is a TSB from GM warning against "flush machines", even though most GM shops use them they are NOT recommended by the factory.

 

Then suffice to consider you would feel more comfortable if you changed he transmission fluid and filter, I do not recommend any flushing thou.

 

Jeff4066
Just do it.
Drop the pan, install a new filter and top off the trans.
Your not racing it, but you can now sleep at night after doing it.
The unit won't have junk in it unless it was over heated or it slips now.
And by then it's time for a rebuilt trans.

 

It isn't rocket science!! Until it's broke!