ATF in a c5?
 

This is a stupid question but where do you check/add atf fluid in a 99 c5.

Trans Oil
 

Hi,
The fill plug is on the left side of the tranny pan.With the car jacked on all fours and level, start the car put your foot on the brake and go through the gears put it back in park, go under the car and loosen the plug and take it out, you will need a pump that you can buy at any auto parts store to pump the new fluid in with and fill it till it starts to overflow out of the plug replace plug and tighten

Remember to leave it running

John

thanks