When transmission is shifted into reverse the wheels do not Move?

Tiny
BREANNA.
  • MEMBER
  • 2001 MAZDA 626
  • 2.0L
  • 4 CYL
  • AUTOMATIC
  • 10,578 MILES
My car drives fine but when it's in reverse there is no power to the wheels, they don't move or anything. But every other gear works fine.
Thursday, February 25th, 2021 AT 3:58 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,716 POSTS
Hi,

This could be the result of several things. I attached a list below that shows possible causes for no reverse. The easiest thing would be a linkage repair. Does the shifter feel normal when switching to reverse? Does the gear indicator show reverse?

Take a look through this list. Here is the thing, everything can be tested, but it will take a lot of time. So, if you don't have one, find someone that has a scan tool that can read transmission codes and have them scan the computer. That should provide diagnostic trouble codes to point us in the right direction.

Take a look at this list:

2001 Mazda 626 ES L4-2.0L DOHC
No Reverse - Automatic Transmission Cd4E
Vehicle Probable Cause No Reverse
NO REVERSE
DTC
No Reverse
Symptom Descriptor
Automatic Transmission Cd4E
Probable Causes
Case Reverse to Low or Reverse Clutch Feeds Have Severe Cross Leakage or Porosity
Electrical Inputs or Outputs
External Shift Linkage Damaged or Out Of Adjustment
Forward, Coast or Direct Clutch Cylinder Reverse Seal Rings Damaged, Missing or Misassembled
Internal Shift Linkages Damaged or Out Of Adjustment
Low Line Pressures
Low and Reverse Clutch Assembly Friction Elements Worn or Severely Damaged
Low and Reverse Clutch Assembly Piston Bore Damaged
Low and Reverse Clutch Assembly Piston Return Spring Damaged
Low and Reverse Clutch Assembly Seals or Piston Damaged
Low and Reverse Clutch Assembly Wave Spring Missing
Main Controls 1 - 2 Shift Valve Damaged, Missing, Stuck or Misassembled
Main Controls Bolts Out Of Torque Specification
Main Controls Gasket Damaged
Main Controls Hydraulic Passages Damaged
Main Controls Low and Reverse Accumulator Piston Damaged, Missing, Stuck or Misassembled
Main Controls Low and Reverse Modulator Valve Damaged, Missing, Stuck or Misassembled
Main Controls Main Regulator Valve Damaged, Missing, Stuck or Misassembled
Main Controls Pressure Tap Plate Damaged, Missing, Stuck or Misassembled
Main Controls Separator Plates Damaged
Main Controls Shift Solenoid A(SSA) Damaged, Missing, Stuck or Misassembled
Powertrain Control Module
Pump Assembly Bolts Out Of Torque Specification
Pump Assembly Gasket Damaged
Pump Assembly Porosity Cross Leaks or Ball Plug Missing Leaking or Plugged Hole
Pump Assembly Pump Support Seal Rings No 6 or No 7 Damaged
Reverse Clutch Assembly
Reverse Clutch Assembly Ball Check Valve Damaged
Reverse Clutch Assembly Friction Elements Worn, Severely Damaged or Misassembled
Reverse Clutch Assembly Piston Return Spring Damaged
Reverse Clutch Assembly Reverse Clutch Hub to Forward, Coast and Direct Hub Splines Damaged
Reverse Clutch Assembly Seals, Piston Damaged
Reverse and Overdrive Gear Set Damaged
Shift Solenoid A(SSA)
Transmission Range Sensor
Vehicle Wiring Harnesses

____________________________________

Let me know as much as you can. Also, if you can get it scanned, it will certainly help.

Take care and God Bless,

Joe
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Thursday, February 25th, 2021 AT 7:19 PM

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