Stalls at Idle, Deceleration

Engine stalls at stops and on deceleration.

POSSIBLE CAUSE ACTION

EGR valve loose or sticking Check EGR system in TESTING
plunger, flange gasket leaking, PROCEDURES
solenoid and thermo valves
malfunctioning



Ignition timing Check Ignition Timing in ADJUSTMENT
PROCEDURES



Restricted exhaust system Check Catalytic Converter system in
TESTING PROCEDURES



Vacuum leak Inspect vacuum hoses for
routing and damaged lines
Check intake manifold area