Fuel Pressure Regulator Problems: Diagnosis & Replacement

Fuel Pressure Regulator Problems: Diagnosis & Replacement

Opening: The Day the Silverado Wouldn’t Stay Running It was a sweltering July afternoon in the shop, the kind of heat that made the concrete floor radiate like a griddle. I was elbow-deep in a 2005 Chevy Silverado 5.3L that had been towed in for “random stalling.” The owner, a local farmer named Tom, had … Read more

Car Stalls at Idle: Troubleshooting Guide

Car Stalls at Idle: Troubleshooting Guide

Quick Answer: If your car stalls at idle—especially at red lights or when stopped—the most common culprits are a failing idle air control valve (IACV), vacuum leaks, a dirty throttle body, or a malfunctioning mass airflow sensor (MAF). Diagnosis starts with checking for error codes and inspecting hoses and sensors. Many fixes are DIY-friendly and … Read more