Chrysler RAM50/D50/Arrow 1979-1993 Repair Guide

Manual Altitude Compensation System

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OPERATION



An off/on valve is used to increase the air supply to the carburetor to lean the mixture and decrease the EGR flow for high altitude operation.

MAINTENANCE



The required maintenance is to inspect any vacuum hoses and routing for kinks, breaks and cracks. The on/off valve should be on for high altitude and off for driving under 4000 ft.

 
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