Aerostar 2WD V6-245 4.0L (1990)
Fluid - A/T: Testing and Inspection
Transaxle Fluid Cooler Flow Test
TRANSMISSION FLUID COOLER CHECK
1. Ensure linkage is properly adjusted and fluid level and control pressure are within specifications.
2. Remove transmission dipstick from filler tube and insert funnel in tube.
3. Raise and support vehicle.
4. Remove cooler return line from its fitting in the case, attach a hose to cooler return line and fasten free end of hose in funnel installed in filler tube.
5. Start engine and set idle at 1,000 RPM with transmission in Neutral.
6. Observe fluid flow at funnel. When flow is constant, it should be liberal. If there is not a liberal flow at 1,000 RPM in Neutral, low pump capacity,
main circuit system leakage, stuck converter charge relief valve, or cooler system restriction is indicated.
7. To separate transmission trouble from cooler system trouble, observe flow at transmission case converter-out fitting.
