Chevy-Express Catalytic Converter: Price, Location, and Diagnosis

Your Chevy Express leaves the factory with a catalytic converter.  It can run into problems over the normal life of the vehicle, and is often accompanied by OBDII code P0420.  Below we’ll cover the location, price, and symptoms of a bad torque converter in your Express.   Menu: Catalytic Converter Price Express Catalytic Converter Location … Read moreChevy-Express Catalytic Converter: Price, Location, and Diagnosis

Chevy Express: Fuel Pressure Regulator – Diagnosis & Cost

One of the most common issues with any vehicle, including the Chevy Express, is when it has fuel pressure regulator issues. A bad fuel pressure regulator can cause all sorts of problems. Most modern vehicles have the fuel pressure regulator mounted on the fuel rail. Some may be in the fuel pump assembly, but this … Read moreChevy Express: Fuel Pressure Regulator – Diagnosis & Cost

Chevy Express: Flashing Check Engine Light Diagnosis

A flashing check engine light is your Chevy Express’s way of saying “I have a serious problem, don’t ignore me”. Most of the time, that serious problem is a misfire.  This flashing light should not be ignored.  When your engine is misfiring, it is dumping raw fuel into the exhaust.  This raw fuel can detonate, … Read moreChevy Express: Flashing Check Engine Light Diagnosis

Chevy Express P0405:  EGR Sensor “A” → Circuit Low

  P0405 is a generic OBDII trouble code.  It deals with the signal coming from the EGR system.  Since it is a generic code, it has the same meaning for the Chevy Express as it would any other vehicle.   The EGR system allows a certain amount of the Express’s exhaust to re-enter the combustion chamber, … Read moreChevy Express P0405:  EGR Sensor “A” → Circuit Low

Chevy Express: Warm Up Catalyst Efficiency → Below Threshold (Bank2)

P0431 is a standard OBDII trouble code, which means that it has the same meaning for the Chevy Express as it would any other vehicle.  It is closely related to P0430 (which is one of the most popular OBDII codes). Warm Up Catalyst Efficiency → Below Threshold (Bank 2) When it’s the only trouble code … Read moreChevy Express: Warm Up Catalyst Efficiency → Below Threshold (Bank2)