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Home >> Ford >> 2012 >> Mustang Base, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 541 (Automatic Transmission - 6R80) >> Diagnosis And Testing >> Diagnosis By Symptom >> Diagnostic Routines >> Engagement Concerns: No Forward in D

Engagement Concerns: No Forward in D

WARNING: This page is about a different car, the 2014 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
Possible Component Reference/Action
201 - ROUTINE 
Transmission Fluid   
 
  • Incorrect level
 
  • Fluid filter and seal assembly - plugged, damaged
  • INSTALL a new filter assembly.
Selector Lever Linkage   
 
  • Selector lever linkage - damage or incorrectly adjusted
Powertrain Control System   
 
  • PCM, external vehicle harness, main control molded leadframe or Shift Solenoid A (SSA).
  • If DTCs are set, CLEAR the DTCs. CARRY OUT the Key ON Engine OFF (KOEO) and Key ON Engine Running (KOER) self-test. ROAD TEST the vehicle and CHECK for DTCs. If the DTCs return, GO to PINPOINT TEST A . INSPECT and CLEAN the SSA  terminals on the molded leadframe for metallic contamination, REFER to SHIFT SOLENOIDS (SS) .
Main Control   
 
  • Defective manual valve
  • INSPECT manual valve linkage.
 
  • Defective clutch (A) regulator valve
  • INSPECT main control assembly for stuck valves or contamination. REFER to MAIN CONTROL .
 
  • Front pump adapter seal - cracked, leaking or damaged
  • INSTALL a new front pump adapter seal.
Clutch Plates   
 
  • Forward clutch (A) friction and steel plate - failure
 
  • Direct clutch (B) friction and steel plate - failure
 
  • Low One-Way Clutch (OWC) assembly - failure
Pump   
 
  • Pump gear - failure