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The engine in your 2004 Cadillac DeVille 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 DeVille and how to check the transmission fluid level. If the transmission fluid level in your DeVille is low, you need to add transmission fluid through the dipstick tube. When adding transmission fluid to your DeVille, 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 DeVille, 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.
Flushing the coolant in your car is not that hard and will extend the life of your engine tremendously - learn how here!2004 Cadillac DeVille DTS 4.6L V8
Cars burn, leak and otherwise dispense of their oil. Check your level frequently and top up when necessary2004 Cadillac DeVille DTS 4.6L V8
Power steering fluid is easy to check and many people (mechanics included) often forget about - learn how here2004 Cadillac DeVille DTS 4.6L V8
Odd electrical problems that come out of nowhere can often signify a blown engine fuse - check and change yours here!2004 Cadillac DeVille DTS 4.6L V8
There's no reason to check the washer fluid level without adding some - see how to do it here!2004 Cadillac DeVille DTS 4.6L V8
If your car is leaking a small amount of power steering fluid - see this video on how to fix the leak2004 Cadillac DeVille DTS 4.6L V8