fuel delivery issues

Fuel System Problems Causing Poor Performance: A Master Technician’s Guide to Diagnosis and Repair

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Fuel System Problems Causing Poor Performance

By Hank Riggs, ASE Certified Master Technician (L1 Advanced Engine Performance Specialist) 15+ Years Turning Wrenches, Diagnosing Drives, and Solving the Toughest Automotive Mysteries When your car’s engine stumbles, hesitates, or flat-out refuses to pull like it used to, your gut might scream “transmission trouble” or “ignition coil failure.” And sure, those can be culprits. … Read more

Engine Hesitation When Accelerating: Diagnosis Guide

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Engine Hesitation When Accelerating: Diagnosis Guide

Quick Answer: Engine hesitation during acceleration is usually caused by problems with fuel delivery, ignition timing, air measurement sensors, or throttle control. The most common culprits I see in the shop are dirty mass airflow sensors, failing throttle position sensors, weak fuel pumps, and worn ignition components. Accurate diagnosis saves hundreds of dollars by avoiding … Read more