Question about 2004 Chevrolet TrailBlazer

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Im about to do a ****** filter on a 2004 chevy trailblazer 2wd shallow pan, and im not sure on how many quarts of ****** fluid i will need to refill, im thinking around 5 or 6. what do you say

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Heath Claussen

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Most shallow pans only take 4 quarts of transmission fluid. However I would buy 5 just to make sure. Start by adding 4 quarts start your truck check your level after it warms up and add any fluid if you need to. Remember not to over fill... I hope this helps

Posted on Sep 18, 2011


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What type of transmission fluid do i need on a 2004 chevy trailblazer ls/4.2

Dexron Vl

Walmart has it under its "SUPER TECH" line of products. $4.27 per quart.

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What is transmission fluid capacity?

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How many quarts of transmission fluid in a 4.2

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Where is the transmission drain plug for 2004 trailblazer


The Trailblazer transmission has no factory installed drain plug. To drain the ****** fluid you need to work from underneath the truck and drop the transmission pan off.



Sep 20, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

I am trying to change the transmission fluid in my 2004 Chevy Trailblazer.

This tranny has approximately 13 quarts of fluid. Just dropping the pan and replacing the filter will yield about 5 quarts or so, with the balance still sitting in the torque converter. I recommend just doing this instead of paying someone to power flush the system. There are debates whether or not this method will damage the tranny. When I did it, I got around 6-7 quarts out of it. Use GM's new transmission fluid Dextron VI. It's much better than the old stuff. GM starting putting the Dextron VI in 2009 and newer vehicles. Make sure you know what size your pan is, there is a shallow pan and a deep pan, the deep will have a step in it, the shallow will be completely flat.

There is another way to get rid of all the fluid, but it's very time consuming and difficult if you've never done one before. Involves disconnecting the transmission fluid cooler line at the radiator and having the pump inside the tranny pump out all the fluid for you.

Dec 21, 2010 | 2004 Chevrolet TrailBlazer

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Does my chevy silverado 2004 v8 2wd ls transmission have a filter and drain plug

No drain plug, the filter is inside trans. Remove trans oil pan (it will be full of tran fluid so loosen bolts on one end and work your way to other end) May have to take bolts out of a cross member and slid it back to get to all the pan bolts. The filter is flat and you'll see it once the pan is dropped. Pull straight down to remove. Clean out sludge and old fluid from pan and scrape old gasket off.
Push new filter into place. Its a good idea to use gasket sealer to help keep it from leaking and to help hold gasket in place so bolt holes stay lined up while bolting up pan. Tighten all bolts evenly. Then refill tran with the fluid your service manual list. Operate your truck in all gears (shifting back and forth) and recheck trans fluid level. Its not a hard job to change filter and fluid. If you can change your own motor oil and have a rachet and sockets then you couldnt have any problems. Just get your filter and trans fluid from your local auto parts store like Autozone or Advance Auto Parts.

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2004 chevy impala im changing the filter and gasket in the tranny pan how much more work is it to flush all out also how much fluid is needed if flushing all out

you cant flush a tranny in your drive way once you drop your pan yoou will lose most but tourque will still be full which will need a machine to totally drain it

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How do i service my transmission on a 2004 chevy trailblazer

transmission pan must be removed to drain fluid & change filter.loosen all pan bolts,remove all but 4 bolts @ corners.strike pan with a plastic hammer or block of wood if it's stuck. slowly remove remaining bolts,allowing fluid to drain into a suitable container.this can get messy,have rags handy.when drained,remove pan,clean pan & transmission gasket surfaces.pull filter straight down,push new filter on to tube,positioned as original,install new gasket,'run down 'all pan bolts then tighten them securely.

Oct 11, 2009 | 2004 Chevrolet TrailBlazer

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First check fluid level on transmisson , if ok if the fluid is brown and smells lie onions then it needs to have the filter and transmisson fluid changed, and all the fluid needs to be changed not just the 3 or 4 quarts in the pan, the filter kit cost $14.99 plus 12 quarts of Dexron III fluid.

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Don't know how many quart capacity, or the proper proceedure

Your trans takes 7.4 quarts of Trans SynD,you won't need this much as there will be fluid left in the torque converter.Pull all the pan bolts except on one end just loosen them,this will allow you to drop just one end of the pan to drain the fluid,pull the rest of the bolts and clean the mating surfaces,pull the old filter off and install the new one.Re install the pan with a new gasket using a criss cross pattern to torque the bolts.The bolts should be torqued to about 18 ft/lbs.Add new fluid(about 5 quarts to start)start the truck and with the your foot on the brake go through all the gears,let it stay in each gear for a few seconds allow the gear to engage and try to move the truck,this allows fluid to move into the respective valve assemblies.Let the truck warm completely and check the fluid level.Add if needs it,and run through the gears again.Check the fluid level again and add till full.Check the pan for leaks if there is re torque the bolts in a criss cross pattern again and this should take care off it.That should take care of it.It wouldn't hurt to pick up a manual for your specific year and model as these are general instructions,and a manual will have the specifics for your truck,Hope this helps and have a good day!

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