Start the engine, leave your tranny in "P" (park) and set the parking brake.
Remove the Transmission Fluid "dip stick", inset a funnel, and pour no more than one quart into the tube unless you are absolutely sure it needs more than one quart. Over-filling can damage your transmission and it is very difficult to get fluid out once it's in.
**Make sure you have the correct fluid for your vehicle (should be in the owners manual, but if not you can call a Chevy dealers service dept. and they should know).
After adding your first quart (or however much you think it needs) check the level. To do this, replace the dip stick and run it up and down a few times to get all the fluid that you just poured down there that stayed in the tube on the stick. Pull the dipstick out while holding a cloth or rag on the stick wiping all of the excess fluid off. Pull the stick all the way out this way and wipe the entire length of it clean and replace it again. Then pull it out once more _not_ wiping it off, and read the bottom to see where your level is (if the entire length of the stick is coated, repeat step one until you can get an acurate reading). If it's still low, add more fluid the same way and check the level again the same way. Make sure your engine is running and in park for the entire process.
You can locate the transmission fluid in your 2004 GMC Envoy by using the transmission fluid dipstick. The transmission fluid will be in the transmission fluid pan.
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You use automatic transmission fluid.
The transmission fluid capacity for a 2000 GMC Jimmy is six quarts. Transmission fluid should be added slowly to because capacity can be reached rapidly.
Dexron-III Automatic Transmission Fluid
700r4
Check where the you would normally check for transmission fluid and put a spout in and pour atf domestic i might remind u into it easy as that and if it hasnt been checked in quite a while i would take the tranny pan off and pour the tranny fluid out and clean it out also put a new gasket and filter while your doing this
You add fluid the same place you check the fluid level. If you have a newer GMC the transmission may be a sealed unit with no place the check the level or add fluid.
remove the transmission pan
To the transmission. Down the dipstick tube.
same spot as the transmission dipstick