Stalls at Idle, Deceleration

Engine stalls at stops and on deceleration.

POSSIBLE CAUSE
EGR valve loose or sticking.
Plunger, flange gasket leaking, solenoid and thermo valves malfunctioning

ACTION
Check EGR system. Exhaust Gas Recirculation



POSSIBLE CAUSE
Restricted exhaust system.

ACTION
Check Catalytic Converter. Catalytic Converter



POSSIBLE CAUSE

Idle speed too low.

ACTION
Check idle speed.



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



POSSIBLE CAUSE
PCV system clogged.

ACTION
Check PCV system. Positive Crankcase Ventilation