Stalls at Idle, Deceleration

1997 Plymouth Prowler V6-3.5L VIN FSECTION Stalls at Idle, Deceleration

Engine stalls at stops and on deceleration.

POSSIBLE CAUSE ACTION



EGR malfunction Check EGR system, Exhaust Gas Recirculation

Excessive spark retard Check Spark Controls,

Restricted exhaust system Check Catalytic Converter, Catalytic Converter

Idle speed too low Check operation of Automatic Idle Speed (AIS) motor,

Vacuum leak Inspect vacuum hoses for routing and damaged lines, refer to "Schematic And Routing Diagrams"
Check intake manifold and vacuum components

Poor or contaminated fuel Recommend higher grade fuel

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.