2002 Ford Thunderbird Owner's Manual - Page 210

Maintenance and Specifications TRANSMISSION FLUID Checking automatic transmission fluid The 5R55N transmission does not have a transmission fluid dipstick. Refer to your scheduled maintenance guide for scheduled intervals for fluid checks and changes. Your transmission does not consume fluid. However, the fluid level should be checked if the transmission is not working properly, i.e., if the transmission slips or shifts slowly or if you notice some sign of fluid leakage. Transmission fluid should be checked and, if required, fluid should be added by a qualified technician. Before adding any fluid, make sure the correct type is used. Use only MERCON V automatic transmission fluid. The type of fluid used is indicated on the transmission fluid pan, extension housing and also in the Lubricant specifications section in this chapter. Use of a non-approved automatic transmission fluid may cause internal transmission component damage and void the warranty. Do not use supplemental transmission fluid additives, treatments or cleaning agents. The use of these materials may affect transmission operation and result in damage to internal transmission components. AIR FILTER MAINTENANCE Refer to the scheduled maintenance guide for the appropriate intervals for changing the air filter element. When changing the air filter element, use only the Motorcraft air filter element listed. Refer to Motorcraft Part Numbers. Note: Do not start your engine with the air cleaner removed and do not remove it while the engine is running. 210