Caravan AWD V6-201 3.3L (1991)
Fluid - A/T: Service and Repair
Fluid Level & Condition Check
Fluid Level
The transmission and differential sump have a common oil sump with a opening between the two.
The torque converter fills in both the "P" Park and "N" Neutral positions.
Place the selector lever in "P" Park to check fluid level.
The engine should be running at idle speed for at least one minute, with the vehicle on level ground. This will assure complete oil level
stabilization between differential and transmission.
The fluid should be at normal operating temperature (approximately 82 C. or 180 F).
The fluid level is correct if it is in the "HOT" region (cross-hatched area) on the oil level indicator.
Fluid Condition
Along with fluid level, it is important to check the condition of the fluid.
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When the fluid smells burned, and is contaminated with metal or friction material particles, a complete transaxle overhaul is needed.
Be sure to examine the fluid on the dipstick closely.
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If there is any doubt about its condition, drain out a sample for a double check.
Note:
After the fluid has been checked, seat the dipstick fully to seal out water and dirt.
Low Fluid Level Symptoms
Low fluid level can cause a variety of conditions because it allows the pump to take in air along with the fluid. in any hydraulic system, air bubbles
will make the fluid spongy, therefore pressures will be low and build up slowly.
Improper Filling Level Symptoms
Improper filling can also raise the fluid level too high.
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When the transaxle has too much fluid, the gears churn up foam and cause the same conditions which occur with a low fluid level.
In either case the air bubbles can cause over heating, fluid oxidation, and varnishing, which can interfere with normal valve, clutch and
accumulator operation.
Foaming can also result in fluid escaping from the transaxle vent, where it may be mistaken for a leak.
