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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 General Tech Q&A > General

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  #1  
Old 08-18-2009, 11:24 AM
greyuser greyuser is offline
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2006 Chevy TrailBlazer LT EXT
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Trailblazer Maintenance Questions

New here and must also admit that I know asbolutely nothing about cars... so I'm not sure if I'm posting this in the right place.

I have a 2006 Trailblazer EXT and I take it for regular oil changes and tire rotations about every 5000 or so miles.

I currently have about 68,000 miles on it.

Im scheduled for an oil change this week and the service place has also recommended both a Transmission and Brake Flush.

I guess my question is how often is this necessary?

Also, I have looked around to try to find a recommended maintenance schedule, but haven't really been successful. Can anoyone here point me in the right direction?

Thanks.
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  #2  
Old 08-18-2009, 11:37 AM
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EwingJK EwingJK is offline
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Welcome!

You can get the answer to both of your questions in the owner's manual. If you don't have your owner's manual, you will find a PDF version in the Resource menu at the top of this page. Look for OEM Manuals. Look through the list to find your year and model. You can download & print it. Here's a link for convenience.

http://forums.trailvoy.com/view.php?pg=resources

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There are a lot of great folks here with a wealth of knowledge and experience just waiting to share it. We all look forward to your contributions as well.

It’s easy to find answers to your questions. The Search Engine is accessible from several locations. Just look for the word “Search” and click on it. A box will open where you will enter your search criteria. “Search” is you friend. Know it. Use it. Love it!

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Old 08-18-2009, 11:41 AM
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BIGGERWOLF BIGGERWOLF is offline
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you can find a maintenance schedule by clicking on the resources tab above then click on OEM Manuals then find your year TB. as for the transmission flush it depends on how you use your TB under normal conditions change at 100,000 mile and under severe ( if you do alot of towing, 4wheelingor if you have alot of hills in your area then it should be changed every 50,000 miles.
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Old 08-18-2009, 11:56 AM
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Quote:
Originally Posted by greyuser View Post
...the service place has also recommended both a Transmission and Brake Flush...
I just pulled this link from another thread started by rbarrios about the frequency of changing your oil. Interesting article. Buyer beware.

http://finance.yahoo.com/family-home...d=family-autos
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  #5  
Old 08-18-2009, 12:08 PM
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Checking the LEVEL on the transfer case and the differentials is recommended every 7500 miles, but realistically, most folks don't do it except at 50K. Changing the transfer case fluid is recommended at 50K, and I strongly second that recommendation since expensive stuff can break with stale TC fluid.

And can you take a look at your profile, since that model wasn't offered with the 6.0L engine - only the TB SS. Thx. The forum software can't handle all possible and impossible combinations without a lot of custom coding.
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Old 08-18-2009, 02:05 PM
greyuser greyuser is offline
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Thank you all for the responses.

Looking at the schedule, it doesn't say anything about scheduled Tune-Ups. Again, I dont know anything about cars, so forgive me... but should I just figure that one is probably not required until about 100,000 miles?

After reading that article, Im not sure now if either of those flushes are necessary. My driving is usually commuting for work and most of it is uphill so I suppose it's better to err on the side of caution and get it down.

I'm presuming changing the transfer case fluid is entirely different than anything that was mentioned above, right? Sorry... again, I'm an idiot when it comes to this stuff.

Thanks again for any info.
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Old 08-18-2009, 06:42 PM
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rbarrios rbarrios is offline
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Im in Los Angeles. so road salt and moisture are not as significant a problem as back east...
The road salt can rust many bolts and nuts (like bleeder screws on brakes).
Brake fluid absorbs moisture over time....
If you feel your brakes are squishy--- then maybe you want to change the fluid....
But I changed my brake fluid around 101,000.
I did it in my driveway- I had my gf do the brake pedal while I opened the bleeder screw..
In essence- she stepped on pedal while I opened bleeder screw so that fluid came out- I closed the screw while she was still on the down press- or once she reached the bottom-- so that no air was sucked back in.
I did this (while keeping the reservoir full) until the fluid came out clearer. (after 101K, it was dark, new fluid is clear like water).
Its actually pretty simple to do.
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Old 08-18-2009, 07:03 PM
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Quote:
Originally Posted by greyuser View Post
Thank you all for the responses.

Looking at the schedule, it doesn't say anything about scheduled Tune-Ups. Again, I dont know anything about cars, so forgive me... but should I just figure that one is probably not required until about 100,000 miles?
I tend to follow the manufacturers recommendations for maintenance items. But around 50K miles I started noticing a big loss of power. Like I said in another post - kids on mopeds were passing me up around town!

I tried changing the 02 sensor. Very little if any change. Cleaned the throttle body again. A little smoother idle, but again very little change in performance.
So then I bought new plugs and installed them. HUGE difference. Would my original plugs have made 100K miles before the engine started to miss? Maybe - I don't know. They LOOKED fine.

You are at 68,000 miles. I'd say it wouldn't hurt to change the plugs, but if you are happy with the performance "If it isn't broke, don't fix it"

BTW, no need to apologize for not knowing "anything about cars" We all had to learn sometime. There are many people on this forum who have been working on cars for many decades (I'd tell you how many for myself but it would give away my age! ) Point is there is a lot of good knowledge and advice here.
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  #9  
Old 08-19-2009, 11:24 AM
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EwingJK EwingJK is offline
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Quote:
Originally Posted by greyuser View Post
My driving is usually commuting for work and most of it is uphill...
What about when you go back home? Isn't that mostly downhill? Just pondering.
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  #10  
Old 08-19-2009, 11:53 AM
greyuser greyuser is offline
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Quote:
Originally Posted by EwingJK View Post
What about when you go back home? Isn't that mostly downhill? Just pondering.
Not really. I mean some of it is, but I take a different freeway home which is mostly flat.
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