2001 Ford Escort Changing the fluid in the transmission

The manual transaxle has a drain plug located between the two support bars that run from front to back underneath the unit. However, removal of the speed sensor is required. There is an electical connector that must be disconnected. The retainer clip for the speedometer cable must be removed along with the speedometer cable. Pry the speed sensor from the transaxle. Use the end of the speed sensor to check the level of the fluid. The larger lobe near the end you remove from the housing indicates full when fluid shows at the top of the lobe. Fluid is low if it shows closer to the tip of the sensor. After the sensor is removed, remove the drain plug using a suitable pan to catch the fluid. Refill by reinstalling the drain plug, using a funnel, and my book says Mercon automatic transmission fluid using care to not overfill. Reinstall the speed sensor, speedometer cable, and electrical connectore in the reverse order of removal procedure

Are you certain that there isn't coolant mixing in with the tranny fluid? May want to check your coolant level as well.