Hyundai Sonata: Black Smoke From Exhaust – Causes and Fixes

Hyundai Sonata Black Exhaust Smoke Diagnostic Table This table has everything you need to diagnose this code, most of the time. Potential Cause Description & Consequences Suggested Action Related Trouble Codes Faulty Fuel Injectors Fuel injectors that are stuck open can cause excessive fuel in the engine. Inspect fuel injectors; clean or replace as necessary. … Read more

Hyundai Sonata Bad Fuel Pump Symptoms: How to Fix Them

Hyundai Sonata Bad Fuel Pump Symptoms + Diagnosis Symptom Description & Consequences Suggested Action Difficulty Starting The car may struggle to start or require multiple attempts. This occurs as the failing pump struggles to deliver enough fuel to the engine. Test fuel pump pressure; consider replacing the pump if it fails to meet required specifications. … Read more