Chevy Trailblazer P0300: Meaning, Causes, + How to Fix

P0300 is a generic OBDII code that can occur with the Chevy Trailblazer. This code indicates that your vehicle’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). If you have P0300 and a cylinder-specific misfire, … Read more

Chevy Trailblazer P0440: Meaning, Causes, How to Fix

The P0440 code is a common trouble code that many Chevy Trailblazer owners may encounter. It indicates that there is an issue with the vehicle’s Evaporative Emission Control (EVAP) system. Specifically, the EVAP system is malfunctioning. A variety of causes can trigger the P0440 code, with the most common one being a loose or damaged … Read more

Chevy Trailblazer P0455: Meaning, Causes, + How to Fix

P0455 in the Chevy Trailblazer is a trouble code that indicates your truck has a LARGE evaporative emissions leak. With this code, you shouldn’t notice any symptoms besides perhaps a noticeable fuel smell. P0455 usually is not an immediate threat to the driveability of your Trailblazer. But, whenever the check engine light is on, it’s … Read more

Chevy Trailblazer P0446: Meaning, Causes, How to Fix

A prevalent issue with the Chevy Trailblazer is the P0446 code. This code corresponds to a specific number obtained when connecting your Trailblazer to an OBDII scanner. A faulty vent control valve most commonly causes P0446. Definition P0446: EVAP System – Vent Control Circuit – Malfunction Symptoms Usually none Common Causes Bad EVAP Vent Control … Read more

P0496 Chevy Trailblazer

One of the most common trouble codes with the Chevy Trailblazer is the P0496 code. This code number references a number that is given to you when you plug your Trailblazer into an OBDII scanner. Related: P0420 Chevy Trailblazer Chevy Trailblazer P0496 Symptoms P0496 code in the Chevy Trailblazer will often be accompanied by an … Read more

Chevy Trailblazer P0442 Engine Code: Causes + How to Fix

One of the most common issues that happens with the Chevy Trailblazer is the P0442 trouble code. This code appears when connecting the vehicle to an OBDII scanner and pertains to the emissions system.  While it’s unlikely to cause a breakdown, it can be bothersome and may result in a failed emissions test for your … Read more

Chevy Trailblazer P0420: Meaning, Causes, + How to Fix

This page is meant to help you troubleshoot the Chevy Trailblazer P0420 trouble code. It covers the P0420 code’s meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. Table … Read more

Chevy Trailblazer P0700 Code: Meaning, Causes, + How to Fix

A trouble code is a signal that is generated by an automatic transmission system whenever it detects an issue in the Chevy Trailblazer that requires your attention. The P0700 code is a general code that is typically accompanied by another code that specifies the specific problem. This code is part of the OBDII system and … Read more

Chevy Trailblazer P0171: Causes, Diagnosis, + How to Fix

One of the most common trouble codes with the Chevy Trailblazer is P0171. It indicates that your Chevy Trailblazer is running lean on the bank one side.  It’s the most common air/fuel mixture-related code. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common codes. The most … Read more