Air Intake System Explained: How It Works & Maintenance

Air Intake System Explained: How It Works & Maintenance

Quick Answer: Your car’s air intake system delivers clean air to the engine for combustion. A clogged air filter or leaky intake tract can rob power, hurt fuel economy, and trigger check engine lights. Replacing an air filter takes 10 minutes and costs $15–$40. Ignoring intake issues can lead to $500+ repairs. The Day a … Read more

Dirty Air Filter Symptoms: 7 Warning Signs to Watch For

Dirty Air Filter Symptoms: 7 Warning Signs to Watch For

The $3 Filter That Nearly Killed a $28,000 Engine It was sweltering in the Bay Area last August—104°F with that dry, dusty Central Valley wind blowing through the shop doors. A woman pulled up in a 2019 Toyota RAV4, saying it “just doesn’t feel right.” Hesitation on takeoff, rough idle at red lights, and that … Read more

Throttle Position Sensor Failure: Signs and Solutions

Throttle Position Sensor Failure: Signs and Solutions

Last Tuesday afternoon, a silver 2015 Honda Accord rolled into my bay with the check engine light glowing amber on the dash. The customer—a schoolteacher named Maria—told me her car had been “acting weird” for two weeks. “It hesitates when I step on the gas, and sometimes it just surges forward like it has a … Read more

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

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

Poor Acceleration: Common Causes and Fixes

Poor Acceleration: Common Causes and Fixes

It was a Tuesday morning in late September when Mrs. Chen rolled into my bay with her 2016 Honda Accord. “It just doesn’t go anymore,” she said, frustration clear in her voice. She’d press the gas pedal to merge onto the highway, and the car would wheeze like an asthmatic trying to run a marathon. … Read more

Engine Misfire Symptoms: What to Look For

Engine Misfire Symptoms: What to Look For

If you’ve ever felt your car shudder, lose power unexpectedly, or idle like it’s about to stall, you may be dealing with a classic—and potentially serious—automotive issue: an engine misfire. As an ASE-certified master technician with over 15 years of hands-on experience diagnosing everything from weekend project cars to daily commuters, I’ve seen misfires cause … Read more

How to Diagnose Engine Misfires: Complete Guide

How to Diagnose Engine Misfires: Complete Guide

Quick Answer: What’s the fastest way to diagnose an engine misfire? Start with a scan tool to pull codes (P0300–P030x). Then swap coils or plugs between cylinders and see if the misfire follows. 90% of random misfires are ignition-related; 8% are fuel; 2% are mechanical. It Started on a Freezing January Morning It was 7:42 … Read more