Add Transmission Fluid: 2004 Ford Thunderbird 3.9L V8 Base 3.9L V8

Our research indicates that your vehicle does not have a transmission fluid dipstick. These types of transmissions are designed to be maintenance free. In order to check the transmission fluid, your vehicle likely has check valve on the bottom of the transmission on the bottom of your car. Your car must be level when the fluid is checked and we therefore recommend having a mechanic with a hydraulic lift or underground bay check your transmission fluid. Any fluid leaks for this type of transmission should be treated by a mechanic.

Author

Hans Angermeier has produced over 100,000 videos showing drivers how to fix things on their cars. He has broad expertise on basic repair procedures covering the majority of cars on the road.

2004 Ford Thunderbird 3.9L V8 Lights Headlight (replace bulb)

Avoid tickets and accidents with both working headlights! New bulbs are much brighter too

2004 Ford Thunderbird 3.9L V8 Brake Fluid Add Fluid

If your brake fluid is a little low, learn how to add some here. Ignoring a low level leads to big problems

2004 Ford Thunderbird 3.9L V8 Fuse (Interior) Check

Carmakers are hiding interior fuse boxes all over the place these days - see how to check your interior fuses here!

2004 Ford Thunderbird 3.9L V8 Tires & Wheels Check Tire Pressure

Properly inflated tires is the easiest way to improve fuel economy. The right tire pressure is NOT on the side of your tire btw

Parts & Tools
We may earn a commission from qualifying purchases as an Amazon Associate
  • Advance Auto coupon for
    20% off entire order: KIOSK20
Ask Mechanic