Dodge 2001 Ram 1500 Owner's Manual page 1787

21 - 152 AUTOMATIC TRANSMISSION - 42RE
AUTOMATIC TRANSMISSION - 42RE (Continued)
CONDITION
NO REVERSE (D RANGES
OK)
HAS FIRST/REVERSE
ONLY (NO 1-2 OR 2-3
UPSHIFT)
MOVES IN 2ND OR 3RD
GEAR, ABRUPTLY
DOWNSHIFTS TO LOW
NO LOW GEAR (MOVES
IN 2ND OR 3RD GEAR
ONLY)
NO KICKDOWN OR
NORMAL DOWNSHIFT
POSSIBLE CAUSES
1. Gearshift Linkage/Cable
Mis-adjusted/Damaged.
2. Park Sprag Sticking.
3. Rear Band Mis-adjusted/Worn.
4. Valve Body Malfunction.
5. Rear Servo Malfunction.
6. Direct Clutch in Overdrive Worn.
7. Front Clutch Burnt.
1. Governor Circuit Electrical Fault.
2. Valve Body Malfunction.
3. Front Servo/Kickdown Band
Damaged/Burned.
1. Valve Body Malfunction.
1. Governor Circuit Electrical Fault.
2. Valve Body Malfunction.
3. Front Servo Piston Cocked in
Bore.
4. Front Band Linkage Malfunction
1. Throttle Linkage Mis-adjusted.
2. Accelerator Pedal Travel
Restricted.
3. Valve Body Hydraulic Pressures
Too High or Too Low Due to Valve
Body Malfunction or Incorrect
Hydraulic Control Pressure
Adjustments.
4. Governor Circuit Electrical Fault.
5. Valve Body Malfunction.
CORRECTION
1. Repair or replace linkage parts as
needed.
2. Replace overdrive annulus gear.
3. Adjust band; replace.
4. Remove and service valve body. Replace
valve body if any valves or valve bores are
worn or damaged.
5. Remove and disassemble transmission.
Replace worn/damaged servo parts as
necessary.
6. Disassemble overdrive. Replace worn or
damaged parts.
7. Remove and disassemble transmission.
Replace worn, damaged clutch parts as
required.
1. Test using DRB scan tool and repair as
required.
2. Repair stuck 1-2 shift valve or governor
plug.
3. Repair/replace.
1. Remove, clean and inspect. Look for
stuck 1-2 valve or governor plug.
1. Test with DRB scan tool and repair as
required.
2. Remove, clean and inspect. Look for
sticking 1-2 shift valve, 2-3 shift valve,
governor plug or broken springs.
3. Inspect servo and repair as required.
4. Inspect linkage and look for bind in
linkage.
1. Adjust linkage.
2. Verify floor mat is not under pedal, repair
worn accelerator cable or bent brackets.
3. Perform hydraulic pressure tests to
determine cause and repair as required.
Correct valve body pressure adjustments as
required.
4. Test with DRB scan tool and repair as
required.
5. Perform hydraulic pressure tests to
determine cause and repair as required.
Correct valve body pressure adjustments as
required.
BR/BE