Vehicle Symptom Guide

Exhaust smells like raw fuel during deceleration

Exhaust smells like raw fuel during deceleration is a exhaust and emissions symptom that occurs during deceleration. Common diagnostic areas include exhaust leak, catalytic converter restriction, oxygen sensor fault, though testing is needed before replacing parts.

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Experiencing Exhaust smells like raw fuel during deceleration near Manchester, NH?

Replacing parts blindly based on symptoms can be expensive and frustrating. Our ASE-certified technicians run live scanner data, pressure tests, and wiring inspections to find the exact root cause.

Safety Guidance: Use caution if visibility, lighting, electrical power, or occupant comfort is impaired, and obtain diagnosis if the condition persists or worsens.

Common Causes for Exhaust smells like raw fuel during deceleration

  • Exhaust leak
  • Catalytic converter restriction
  • Oxygen sensor fault
  • EGR system fault
  • Evaporative emissions leak

Related Diagnostic Trouble Codes

These codes frequently trigger or accompany Exhaust smells like raw fuel during deceleration: