Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSDODGE AND RAM1999CARAVAN BASE, 2.4 BREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSOVERHAUL - 31THPERFORMANCE TESTSROAD TEST
1999 Dodge and Ram Caravan Base, 2.4 B
Road Test
1999 Dodge and Ram Caravan Base, 2.4 BSECTION Road Test
- Ensure shift linkage or cable is properly adjusted, fluid level and condition are okay. Add fluid and adjust shift linkage or cable as necessary.
- Road test vehicle, operating transaxle in each gear position. Check for slipping and any variation in shifting.
- If vehicle operates properly at highway speeds, but has poor acceleration, torque converter stator clutch may be slipping. If acceleration through all gears is normal, but high throttle opening is required to maintain highway speeds, torque converter stator clutch may be seized. Torque converter must be replaced if stator clutch is defective.
- Slipping or flare-up in any gear usually indicates clutch, band, or overrunning clutch problems. The slipping clutch or band in a particular gear can usually be identified by noting transaxle operation in other gear selector lever positions and comparing which internal units are applied in those positions. See CLUTCH & BAND APPLICATION table.
- Rear clutch is applied in Drive (1st gear) and in manual 1st gear. Also, overrunning clutch is applied in Drive (1st gear) and low-reverse band is applied in manual 1st gear. If transaxle slips in Drive (1st gear), but does not slip in manual 1st gear, overrunning clutch is defective. If transaxle slips in any 2 forward gears, rear clutch is slipping.
- If the transaxle slips in Drive (3rd gear), either front or rear clutch are slipping. Select another gear which utilizes one of these clutches and determine which clutch is slipping. See CLUTCH & BAND APPLICATION table. If transaxle also slips in Reverse, front clutch is slipping. If transaxle does not slip in Reverse, rear clutch is slipping.
- Process of elimination can be used to detect any unit which slips and to confirm proper operation of good units. However, although road test analysis can usually diagnose slipping units, the actual malfunction usually cannot be decided. Practically any condition can be caused by leaking hydraulic circuits or sticking valves. Hydraulic pressure tests should be performed on transaxle.
CLUTCH & BAND APPLICATION
| Gear Selector Lever Position | (1) Elements In Use | |||
|---|---|---|---|---|
| "D" (Drive) | ||||
| 1st Gear | Rear Clutch & Overrunning Clutch | |||
| 2nd Gear | Rear Clutch & Kickdown Band | |||
| 3rd Gear | Front Clutch, Rear Clutch & Torque Converter Clutch | |||
| "2" (Second) | ||||
| 1st Gear | Rear Clutch & Overrunning Clutch | |||
| 2nd Gear | Rear Clutch & Kickdown Band | |||
| "1" (Low) 1st Gear | Rear Clutch & Low-Reverse Band | |||
| "R" (Reverse) | Front Clutch & Low-Reverse Band | |||
| "N" (Neutral) | All Clutches & Bands Released Or Ineffective | |||
| "P" (Park) | All Clutches & Bands Released Or Ineffective | |||
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.