Buick Rainier: Black Exhaust Smoke → Symptoms & Diagnosis

Black smoke coming from your Buick Rainier’s exhaust is definitely a concerning problem.  Different colored exhaust can mean different things.  Black smoke is typically of greater concern than white smoke. Dark black smoke coming from the exhaust of your Rainier indicates that there could be a serious engine problem, and indicates that the air/fuel mixture … Read more

Buick Rainier Engine Knocking Causes + How to Fix

One of the most alarming sounds you can hear from your Buick Rainier is the engine knocking. Unfortunately, an engine knock can be a sign of significant engine problems. The first thing you should do is check your Rainier’s oil. If it’s low, fill it up. If it appears frothy, there may be coolant getting into … Read more

Buick Rainier: Bad MAF Sensor → Symptoms & Causes

  The mass airflow sensor (commonly abbreviated to MAF) is one of the most important engine management sensors.  A bad mass airflow sensor can leave your Buick Rainier’s engine running rough, or even inoperable. A MAF sensor measures the density of the air entering the intake manifold.  It passes this information onto your Rainier’s ECU. … Read more

Buick Rainier Speedometer Not Working: Causes + How to Fix

One of the most inconvenient things that can happen to your Buick Rainier is when the speedometer stops working.  You don’t realize how much you look at the thing until it’s always sitting at 0 MPH while driving down the road.   If your vehicle’s speedometer is not working, it’s usually caused by an issue with … Read more

Buick Rainier AC Not Cooling:  Why and How to Fix

One of the most inconvenient vehicular problems is when the A/C won’t blow cold air. If your Buick Rainier isn’t keeping you cool, we’ve outlined some of the most common reasons why this might be happening. It is entirely possible for your Rainier’s heater to work just fine even when the air conditioner is blowing … Read more

Buick Rainier: Brakes Grinding  → Causes & Diagnosis

  One of the most common problems with the Buick Rainier (or any vehicle) is when the brakes are grinding.  The number one cause of grinding brakes is going to be brake pads that have worn all of their friction material off.  But, there are other causes as well. Your Buick Rainier is always going … Read more

Buick Rainier’s Steering Wheel Shaking: Every Reason Why

If your Buick Rainier’s steering wheel is shaking, you should deal with it immediately. A shaking steering wheel in the Buick Rainier is caused by anything from the wheels and tires through the suspension (ball joints, tie rods, etc.) to the braking system.  We’ll start with the easiest things to check and move towards things … Read more

Buick Rainier Service Stabilitrak: Meaning + How to Fix

One of the most common issues with the Buick Rainier, or any newer GM vehicle, is the “Service StabiliTrak” warning.   StabiliTrak is GM’s electronic stability control system. It does much more than a standard traction control system. It is one of the most innovative and vital safety features on your Buick Rainier and can … Read more

Buick Rainier: Bad Coil Packs → Symptoms and Diagnosis

  Bad Coil Packs are one of the more problematic ignition issues that can occur with the Buick Rainier.  A bad oil pack can make your Rainier almost un-drivable.  Or it may have little effect at all on the engine’s ability to run.  It’ll get worse as they lose their ability to fire the spark plugs. … Read more