1996 Geo Tracker Base, 2D Utility, 4WD, AutomaticFACTORY OEM SERVICE PROCEDURE

Idle Speed & Ignition Timing

Ensure idle speed and base ignition timing are set to specification. See IDLE SPEED SPECIFICATIONS and IGNITION TIMING tables. If necessary, see ADJUSTMENTS article for adjustment procedures.

IDLE SPEED SPECIFICATIONS (1)

Application Idle RPM
Tracker (2)
A/C Off 750-850
A/C On (3) 950-1050
(1) Transaxle or transmission in Neutral or Park.
(2) Idle speed is checked with scan tool connected to DLC and a jumper wire connected between duty check data link connector terminal No. 2 (Blue/Yellow wire) diagnostic request, and terminal No. 4 (Black wire) ground.
(3) Idle speed should be 750-850 RPM in any gear.
IAC DUTY AT SPECIFIED IDLE SPEED (1)

Application (2) Percent
Tracker 50
(1) See IDLE SPEED SPECIFICATIONS  table.
(2) With A/C turned off (if equipped).
IGNITION TIMING (Degrees BTDC @ RPM) (1)

Application Man. Trans. Auto. Trans.
Tracker (2) 4-6 @ 800 (2) 4-6 @ 800
(1) See ADJUSTMENTS article for adjustment procedures.
(2) With jumper wire installed between terminals No. 4 (Black wire) and No. 5 (Blue/Red wire) of test connector located between right strut tower and battery.
Chapter Navigation
Return to Chapter: Ignition Checks
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

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.