P2189 Buick Enclave:  Lean Condition at Idle (Bank 2)

P2189 is a DTC code that can occur in your Buick Enclave.  It indicates the air fuel mixture is too lean at idle, specifically in bank 2 (we’ll cover how to find bank 2 later).  Its is different from the much more common P0174, which indicates that bank 2 is lean at any engine speed. … Read more

Buick Enclave:  SVC Tire Monitor

Your Buick Enclave is equipped with a tire pressure monitor system.  This system notifies you if the tire pressure is too low.  When you get the Service Tire Monitor warning, it indicates that there is a problem with the tire monitoring system itself.  Id does not mean that the tire pressure is (necessarily) too low. … Read more

Buick Enclave P2187:  Bank 1 A/F Mixture Too Lean”

P2187 is a DTC code that can occur in the Buick Enclave.  It indicates the air fuel mixture is too lean at idle. The technical definition for P2187 “System Too Lean at Idle: Bank 1”.  The code is thrown after your Enclave’s oxygen sensor on Bank 1 (usually sensor 1) has detected that the air … Read more

Buick Enclave Overheating While Idle: Causes + Fix

There are a few reasons why your Buick Enclave would be overheating when idling.  The most common ones include a bad thermostat, water pump, electric fans, and low coolant level.  This guide is intended to help you find the cause of this overheating in the most efficient way possible.  So, let’s start with what’s easy … Read more

Buick Enclave:  P0068 MAP/MAF Throttle Position Correlation

P0068 in the Buick Enclave is a generic OBD II code.  In layman’s terms, it means that the MAP (manifold absolute pressure) and/or MAF (mass airflow sensor) are providing the Enclave’s computer contradicting data compared to what it should be in relation to the throttle position sensor. The throttle position sensor tells the computer how … Read more

Buick Enclave: Engine Smoking Causes + Diagnosis

A smoking engine is a serious thing.  If your Buick Enclave’s engine has smoke coming from it, it needs to be addressed right away.  It can be caused by quite a few different problems, none of which should be ignored. The most common reasons why your Enclave’s engine would smoke include overheating, burning oil, or … Read more

Buick Enclave Hesitating to Start (5 Most Common Reasons)

While it may not leave you stranded, a vehicle that hesitates to start can be very concerning. There are a few reasons why your Buick Enclave may not be starting, such as a bad starter, a bad battery, bad alternator, and more.   Buick Enclave Hesitates to Start: Causes Here are some of the most … Read more

Buick Enclave:  Bad Sway Bar Links (Common Symptoms)

Sway bar links are responsible for connecting your Buick Enclave’s sway bar to the chassis.  The job of a sway bar is to eliminate body roll by helping the tires keep better contact with the road, which improves the handling characteristics of your Enclave.  If you have a bad sway bar link, your vehicle will … Read more

Buick Enclave Shuts Down While Driving (Common Causes)

If your Buick Enclave is shutting down while driving, it’s a real safety hazard.  Vehicles are a lot harder to control without power brakes or steering. Below is a list of the most common reasons your Enclave would randomly die while driving.  Before looking at anything, is the check engine light on?  If it is, … Read more

Buick Enclave:  Brake Lights Not Working Diagnosis

Brake lights are one of the most critical safety features that your Buick Enclave has.  They let other drivers know when you are slowing down, and that they need to slow down too.  If your brake lights aren’t working, you’re way more likely to get rear ended than normal.  The good news is that troubleshooting … Read more