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Home >> Jeep >> 1987 >> Cherokee Base, 4D Utility, 2.1 B >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Spark Control System >> Description >> Non-Linear Vacuum Regulator Valve
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Non-Linear Vacuum Regulator Valve

NLVR valve is used on some models. This valve supplies vacuum advance unit with a regulated combination of manifold and carburetor ported vacuum when engine load is low and switches to supply only carburetor ported vacuum as load increases.

Fig 1: Non-Linear Vacuum Regulator Valve
G10742Courtesy of AMERICAN MOTORS/JEEP CORP.