Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPONTIAC1984FIERO BASE, STANDARD, MY8REPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONMANUAL TRANSSERVICING - M/TADJUSTMENTPARK LOCK CABLE83MM 4-SPEED OVERDRIVE (CORVETTE)
1984 Pontiac Fiero Base, Standard, MY8
83mm 4-Speed Overdrive (Corvette)
1984 Pontiac Fiero Base, Standard, MY8SECTION 83mm 4-Speed Overdrive (Corvette)
- Disconnect negative battery cable. Remove left seat. If equipped with power seats, remove electrical leads. Remove shift knob, console cover and shifter cover.
- Lift up adjuster locking tab on top of transmission tunnel to release cable. Position steering column lock lever in lock position. Shift transmission into reverse gear.
- Insert a .060" (1.5 mm) gauge against the lever stop and pull reverse lever until reverse pawl contacts gauge. Push down on adjusting tab to set cable. Remove gauge and pull back on shifter lever. Check that reverse pawl hits stop and locks shifter in reverse.
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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.