Dodge 2001 Ram 1500 Owner's Manual page 1961

21 - 326 AUTOMATIC TRANSMISSION - 44RE
AUTOMATIC TRANSMISSION - 44RE (Continued)
CONDITION
NO 4-3 DOWNSHIFT
NO 4-3 DOWNSHIFT
WHEN CONTROL SWITCH
IS TURNED OFF
CLUNK NOISE FROM
DRIVELINE ON CLOSED
THROTTLE 4-3
DOWNSHIFT
3-4 UPSHIFT OCCURS
IMMEDIATELY AFTER 2-3
SHIFT
WHINE/NOISE RELATED
TO ENGINE SPEED
POSSIBLE CAUSES
6. Overrunning Clutch Worn.
7. Planetary Gears Broken.
8. Converter Clutch Dragging.
1. Circuit Wiring and/or Connectors
Shorted.
2. PCM Malfunction.
3. TPS Malfunction
4. Lockup Solenoid Not Venting.
5. Overdrive Solenoid Not Venting.
6. Valve Body Valve Sticking.
1. Control Switch Open/Shorted.
2. Overdrive Solenoid Connector
Shorted.
3. PCM Malfunction.
4. Valve Body Stuck Valves.
1. Transmission Fluid Low.
2. Throttle Cable Mis-adjusted.
3. Overdrive Clutch Select Spacer
Wrong Spacer.
1. Overdrive Solenoid Connector or
Wiring Shorted.
2. TPS Malfunction.
3. PCM Malfunction.
4. Overdrive Solenoid Malfunction.
5. Valve Body Malfunction.
1. Fluid Level Low.
2. Shift Cable Incorrect Routing.
CORRECTION
6. Remove and inspect clutch. Repair as
required.
7. Remove, inspect and repair as required
(look for debris in oil pan).
8. Check for plugged cooler. Perform flow
check. Inspect pump for excessive side
clearance. Replace pump as required.
1. Test wiring and connectors with test lamp
and volt/ohmmeter. Repair wiring as
necessary. Replace connectors and/or
harnesses as required.
2. Check PCM operation with DRB scan
tool. Replace PCM only if faulty.
3. Check TPS with DRB scan tool at PCM.
4. Remove valve body and replace solenoid
assembly if plugged or shorted.
5. Remove valve body and replace solenoid
if plugged or shorted.
6. Repair stuck 3-4 shift valve or lockup
timing valve.
1. Test and replace switch if faulty.
2. Test solenoids and replace if seized or
shorted.
3. Test with DRB scan tool. Replace PCM
if faulty.
4. Repair stuck 3-4, lockup or lockup timing
valve.
1. Add Fluid.
2. Adjust cable.
3. Replace overdrive piston thrust plate
spacer.
1. Test connector and wiring for loose
connections, shorts or ground and repair as
needed.
2. Test TPS and replace as necessary.
Check with DRB scan tool.
3. Test PCM with DRB scan tool and
replace controller if faulty.
4. Replace solenoid.
5. Remove, disassemble, clean and inspect
valve body components. Make sure all
valves and plugs slide freely in bores.
Polish valves with crocus cloth if needed.
1. Add fluid and check for leaks.
2. Check shift cable for correct routing.
Should not touch engine or bell housing.
BR/BE