Yo,
Is Check Engine Light (CEL) on with engine running or in 3rd or reverse?
It comes on when the electronic engine control system is not working properly. The check engine warning indicator comes on briefly when the ignition switch lock cylinder is turned to ON, and should turn off when the engine starts. If the check engine warning indicator does not come on when the ignition switch lock cylinder is turned to ON or if it comes on while the vehicle is moving, the system is malfunctioning
If the CEL does not light up at all when starting it; then suspect that bulb is burnt-out or loose, socket was damaged by PO or shop, etc. or someone removed it.
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Same for:
E4OD Transmission Control Indicator Light (TCIL), it is a LED and overdrive on/off switch at end of the Transmission shifter stalk; flashing OD light is an indication of a transmission related trouble code in the Powertrain Control Module (PCM).
Is it flashing eith engine runniing or in Reverse or was it flashing when last driving?
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Following from 96 Bronco Workshop Manual, partial @
http://www.diesel-dave.com/vehic/manual/stj/stjleft.htm
Section 07-01A: Transmission, Automatic, E4OD
@
http://www.diesel-dave.com/vehic/manual/stj/stjs71al.htm
DIAGNOSIS AND TESTING
Diagnosis by Symptom
The Diagnosis by Symptom Charts give the service technician diagnostic information, direction and possible components, using a symptom as a starting point.
The Diagnosis by Symptom Charts are divided into two categories: Electrical Routines, indicated by 200 series numbers, and Hydraulic/Mechanical Routines, indicated by 300 series numbers. The Electrical Routines list the possible electrical components that could have caused or contribute to the symptom described. The Hydraulic/Mechanical Routines list the possible hydraulic or mechanical components that could cause or contribute to the symptom described.
Diagnosis by Symptom Chart Directions
Using the Diagnosis by Symptom Index, select the Symptom/Concern that best describes the condition.
Turn to the Routine indicated in the Diagnosis by Symptom Index.
Always begin diagnosis of a symptom by using the following:
Preliminary Inspections
Verification of Condition
Check the Fluid Level
Perform Other Test Procedures as directed
NOTE: Not all concerns and conditions with electrical components will set a diagnostic trouble code (DTC). Be aware that the components listed may still be the cause. Verify proper function of those components prior to proceeding to the Hydraulic/Mechanical Routine listed.
THEN BEGIN with the Electrical Routine if indicated. Follow the reference or action required statements. Always perform the On-Board Diagnostic Tests as required. NEVER SKIP STEPS. Service as required. If the concern is still present after electrical diagnosis, then proceed to the Hydraulic/Mechanical Routine listed.
The Hydraulic/Mechanical Routines list possible hydraulic or mechanical components that could cause the concern. These components are listed in the removal sequence and by most likely cause. You must inspect all components listed to ensure proper repair.
Possible Component Reference/Action
215 — ELECTRICAL ROUTINE
Powertrain Control System
Electrical inputs/outputs, vehicle wiring harnesses, powertrain control module, shift solenoid 1, shift solenoid 2, transmission range sensor
Run On-Board Diagnostics. Refer to Powertrain Control/Emissions Diagnosis Manual for diagnosis. ●miesk5 Note, this is the Self Test for Diagnostic Trouble Codes (DTC)s, see it below.●
Clear codes, road test and rerun On-Board Diagnostics.
315 — HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage (Internal/External) or Cables,
●Transmission Range (TR) Sensor, aka Manual Lever Position/Transmission Range (MLP/TR) Sensor.
Damaged, not connected, misadjusted. Inspect and service as required. miesk5 Note, it looks like thism
On drivers side.
Verify linkage adjustment as outlined. After servicing linkage, verify that the transmission range (TR) sensor is properly adjusted. Refer to In-Vehicle Service in this section.
Main Controls
Bolts not tightened to specification
Retighten bolts to specification.
Gaskets damaged, misaligned
Inspect for damage and replace.
Shift solenoid 1, shift solenoid 2 stuck or damaged
Refer to Electrical Routine No. 215.
Solenoid regulator valve, 2-3 shift valve, 3-4 shift valve, D2 valve — stuck, missing, misassembled, damaged
Inspect for damage. Service as required.
Air bleeds for S1-S2 circuits missing
Inspect for damage. Replace case.
Wrong components used in rebuild
Verify that proper components were used. Service as required.
Mechanical
Band servo, clutches damaged
Refer to proper disassembly procedures in this section.
For diagnosis related to a specific gear, use Transmission Tester to determine gear Refer to the following routine(s) for further diagnosis
No Shift 1-2, Routine 220/320
No Shift 2-3, Routine 221/321 ● SEE THIS ROUTINE TOO●
No Shift 3-4, Routine 222/322
Reverse Ring Gear
Damaged gear lugs to reverse carrier
Inspect for damage. Service as required.
Low One-Way Clutch
Damaged, misassembled
Inspect for damage, proper assembly. Service as required.
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Try a Self Test for Diagnostic Trouble Codes (DTC)s by my pal, BroncoJoe19 @
http://broncozone.com/topic/14269-code-reader/?pid=74587&mode=threaded
A helper can assist you by counting the codes. Some use their smart phones to record them.
BEWARE OF FAN, BELTS, PULLEYS, HOT HOSES, IGNITION HIGH TENSION WIRES, AND ENGINE COMPONENTS
Or purchase a coder reader such as Equus 3145 Innova OBD I Code Reader for Ford EEC IV Engines at Walmart &€ most parts stores.
Or ask local mom and dad parts stores if they will test it for you.
The engine temperature must be greater than 50° F for the Key On Engine Off (KOEO) Self-Test and greater than 180° F for the Key On Engine Running (KOER) Self-Test.
Run it around to heat the engine up and shift thru all gears including Reverse.
Make sure A/C is off and transmission is in Park (automatic); or in Neutral for a Manual & release clutch.
Then turn off engine, all accessories/lights (close driver's door) , etc.
Do KOEO test First
Post Code(s) here according to:
KOEO
&
KOER
Al
