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The engine in your 2003 Nissan Altima should be running when you perform a transmission fluid level check, otherwise it will be inaccurate. The video above shows where the transmission fluid dipstick is located in your Altima and how to check the transmission fluid level. If the transmission fluid level in your Altima is low, you need to add transmission fluid through the dipstick tube. When adding transmission fluid to your Altima, be sure to add it slowly as it will fill up quickly and is difficult to remove excess fluid if you overfill.
If you are having problems with the transmission in your Altima, such as clunky shifting or hesitation, check the fluid level first - it is amazing how many drivers pay thousands of dollars for transmission work when a half quart of transmission fluid would have fixed the problem.
If your battery has green or white cruddy deposits, it is probably not getting enough juice from and will likely wear out sooner2006 Nissan Altima SE 3.5L V6
Got a short fuse? Don't blow a fuse, change it!2006 Nissan Altima SE 3.5L V6
Is the clock in your car ahead or behind? Learn how to set it here!2006 Nissan Altima SE 3.5L V6
If you have an electrical component that doesn't work, try replacing the fuse first2006 Nissan Altima SE 3.5L V6
Flushing the coolant in your car is not that hard and will extend the life of your engine tremendously - learn how here!2006 Nissan Altima SE 3.5L V6
Power steering fluid is easy to check and many people (mechanics included) often forget about - learn how here2006 Nissan Altima SE 3.5L V6