1988 Toyota 4Runner Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Distributor Advance Specifications

PICKUP & 4RUNNER (22R) DISTRIBUTOR MECHANICAL ADVANCE SPECIFICATIONS

RPM Degrees
600 Advance Begins
750 0.2-1.7
1100 2.9-4.4
1500 5.9-7.4
2150 10.5-12.0
2900 11.5-13.5
PICKUP & 4RUNNER (22R) DISTRIBUTOR VACUUM ADVANCE SPECIFICATIONS

In. Hg Degrees
Main (Except Califirnia)
3.2 Advance Begins
3.9 0.7-3.8
5.9 6.0-8.3
10.6 9.0-11.0
Sub (Except California)
7.9 Advance Begins
9.1 0.7-3.5
10.6 3.1-5.7
14.9 5.0-7.0
Main (California)
3.2 Advance Begins
4.7 1.1-3.2
10.2 8.3-10.3
16.1 11.5-13.5
Sub (California)
7.8 Advance Begins
9.1 0.5-3.1
10.6 2.9-5.5
14.9 5.0-7.0
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.

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