Buick Rainier P0455: Meaning, Causes, + How to Fix

P0455 in the Buick Rainier 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 Rainier. But, whenever the check engine light is on, it’s … Read more

Buick Rainier P0341: CPS – Range/Performance

P0341 is a somewhat common OBDII diagnostic code in the Buick Rainier. It means that there is a Range/Performance problem. In layman terms this means that there is a problem with the signal coming from the Camshaft Position Sensor (CPS).   OBDII P0341 means that there is a problem with the Camshaft Position Sensor (CPS) … Read more

Buick Rainier P0113: IAT Sensor → High Input Problem

P0113 is an OBDII trouble code that occurs when the Buick Rainier’s engine management computer detects that there is an issue with the Intake Air Temperature (IAT) Sensor, specifically that there is a High Input Problem with it. P0113: IAT Sensor – High Input Problem The IAT sensor is responsible for measuring the air temperature … Read more

Buick Rainier P0325 Code: Causes + How to Fix

The Buick Rainier is a popular SUV, but it can run into issues with the P0325 trouble code. This article will cover the causes of the code and how to fix it. Learn what to look out for and how to get your Buick Rainier back on the road. The knock sensor’s primary role is … Read more

Buick Rainier P0304: Cylinder 4 Misfire – Diagnosis + Fix

If your Buick Rainier has the P0304 trouble code, you should know that it’s about as common of a code as there is. It’s a generic OBD IIcode (same meaning for all vehicles) that indicates that your vehicle’s fourth cylinder is misfiring. P0304 is a drivability concern and should be dealt with right away. If … Read more

Buick Rainier P0340 Code: Diagnosis, Causes, How to Fix

One of the more common engine management trouble codes that can occur in the Buick Rainier is P0340. It’s a generic code, which means it has the same definition for every car or truck made after 1996. P0340 is related to the camshaft position sensor and points to an issue with the wiring harness connected … Read more

P0303 Buick Rainier: Cylinder 3 Misfire Diagnosis

If your Buick Rainier has the P0303 trouble code, you should know that it’s about as common of a code as there is. It’s a generic code (same meaning for all vehicles) that indicates that your vehicle’s third cylinder is misfiring. P0303 is a real drivability concern and should be dealt with right away. If … Read more

Buick Rainier P0446: Meaning, Causes, How to Fix

A prevalent issue with the Buick Rainier is the P0446 code. This code corresponds to a specific number obtained when connecting your Rainier 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