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.

1979 Renault LeCarFACTORY OEM SERVICE PROCEDURE

Fast Idle - Deceleration - Control: Maintenance

Periodically clean and inspect system components for proper operation. Every 25, 000 miles, replace idle delay valve. Be sure distributor side of valve faces carburetor.

Fig 1: Federal Fast Idle (Deceleration) Control System

Courtesy of AMERICAN MOTORS/RENAULT CORP.

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Factory Service Tools

Use the Manual With the Right Hardware

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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.