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 MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 229 (CRUISE CONTROL SYSTEM)ADJUSTMENTSCRUISE CONTROL CABLE3.5L V6
1999 GMC Forward Control 5.7 R, Automatic
3.5L V6
1999 GMC Forward Control 5.7 R, AutomaticSECTION 3.5L V6
WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
- Disengage adjustment lock (3) on the cruise control cable (2) by pulling the button wings upward. The cable will move freely in and out of the adjuster body when lock is disengaged. Do not remove the lock. See Fig 1.
- Assure that the throttle body is in the closed position.
- Assure the cable adjuster moves freely in adjuster body.
- Press the lock firmly until fully seated.
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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.