1989 Ford Bronco II RWD, Standard, M5OD-R1FACTORY OEM SERVICE PROCEDURE

8 Cylinder Ignition Timing Specifications

V8 IGNITION TIMING

Application & Calibration Code () Degrees BTDC RPM
5.0L V8
0-53E-R00 10 () Idle
0-54Y-R00 10 () Idle
0-53F-R10 10 () Idle
0-54E-R10 10 () Idle
0-54J-R10 10 () Idle
0-54K-R10 10 () Idle
0-54R-R10 10 () Idle
0-54S-R10 10 () Idle
0-54T-R10 10 () Idle
0-54V-R10 10 () Idle
0-54W-R10 10 () Idle
0-54Z-R10 10 () Idle
5.8L V8
0-64E-R00 10 () Idle
0-64H-R00 10 () Idle
0-64K-R00 10 () Idle
0-64R-R11 10 () Idle
0-64R-R12 10 () Idle
0-75A-R12 10 () Idle
0-76A-R10 10 () Idle
0-76C-R12 10 () Idle
7.5L V8
0-97A-R05 10 () Idle
0-98C-R05 10 () Idle
0-98F-R05 10 () Idle
0-97A-R10 10 () Idle
0-98A-R10 10 () Idle
0-98A-R00 10 () Idle
0-98B-R00 10 () Idle
(1) Located on underhood emission decal.
(2) With Automatic Transmission in "Drive".
(3) Refer to underhood emission decal.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.