Chrysler recommends only Dexron® automatic transmission fluid for their automatic transmissions.
Check the automatic transmission fluid level whenever you check the engine oil. It is even more important to check the fluid level when you are pulling a trailer or subjecting the car to any other type of hard use.
Check the fluid level with the car parked on a level spot, engine warm, and the transmission lever in Neutral. The parking brake should be on.
- Slowly move the selector lever through all the gear positions, pausing momentarily in each one. Place the lever in Neutral.
- Open the hood and locate the automatic transmission dipstick on the right side of the car near the firewall.
- Wipe off the top of the dipstick and around the tube to prevent dirt from falling into transmission.
- Remove the dipstick. Fluid should be at the "Full" mark or slightly below. It should never be over the "Full" mark.
- Add or drain fluid as necessary to bring the level to the "Full" mark. Use only automatic transmission fluid marked Dexron®. Add fluid sparingly, the difference between the "Add" and "Full" lines is only one pint. Chrysler does not recommend using any fluid additives.
PAN & FILTER SERVICE
Chrysler recommends that the automatic transmission fluid and filter be changed at 24,000 mile intervals on cars used for trailer towing. It doesn't specifically recommend fluid and filter changes for vehicles in normal use, but it might not be a bad idea to do it if you purchased the car used. 1976 models and 1977 models built before January 10, 1977 have a torque converter drain plug which allows draining the complete transmission. Models manufactured after that date do not have the drain plug, so that only the transmission pan can be drained. To change the transmission fluid and filter you'll need a new filter, pan gasket, and sufficient fluid to refill the transmission. Four quarts are enough for the later models, 9 quarts will be needed if you're draining the complete transmission on earlier models with the torque converter drain plug.
- Run the engine until it reaches normal operating temperature.
- Jack up the front of the car and support it on jackstands or use drive-on ramps. Be sure to block the rear wheels.
- Place a large container under the transmission oil pan. If you are draining the torque converter, it will have to hold 9 quarts.
- Loosen the rear pan bolts first to allow the fluid to drain into the pan without making a mess on the garage floor. Remove the pan and discard the gasket.
- If you're draining the converter, remove the access plate at the front of the torque converter housing. If you can't see the drain plug, turn the engine clockwise with a wrench on the crankshaft pulley until you can. Remove the drain plug and allow the fluid to empty into the pan.
- Install the drain plug. Tightening torque is 90 in. lbs. Don't overtighten it. Install the access plate.
- Unscrew and discard the old transmission filter.
- Install a new filter. Don't overtighten the retaining screws.
- Clean the oil pan in solvent and allow it to dry. Make sure that you don't leave any lint in the pan.
- Install the oil pan using a new gasket. Tighten the bolts in a criss-cross pattern. Tightening torque on the bolts is only 150 in. lbs. (about 12 ft. lbs.), so don't overtighten them. The transmission case is aluminum.
- If the torque converter has been drained, pour six quarts of Dexron® automatic transmission fluid down the dipstick tube. If only the pan has been drained, add two quarts of transmission fluid. A long neck funnel is handy for this job.
- Start the engine and let it idle for about two minutes.
- With the parking brake on, move the transmission selector through each of the gear positions. Stop in Neutral.
- Add enough fluid to bring the level up to the "add one pint" line. Check the fluid as described earlier in this section. Add only enough fluid to bring the level up to "Full." Never overfill the automatic transmission; this can cause foaming and leakage.