Mercury Mariner Steering Wheel Hard to Turn: Common Causes

If your Mercury Mariner’s steering wheel is hard to turn, it’s almost always going to be caused by an issue with the power steering system.  But there can be other causes as well. Your vehicle’s power steering system is responsible for taking energy from the engine, converting it to hydraulic pressure, and using that pressure … Read more

Mercury Mariner:  Blue Smoke → Causes & Diagnosis

  A very common problem that affects all vehicles (including the Mercury Mariner) is blue smoke coming from the exhaust.  Reasons for blue exhaust smoke include bad valve seals, valve train wear in general, the PCV valve, burning transmission fluid and more. Blue smoke indicates that your Mariner’s engine is burning oil.  The question is … Read more

Mercury Mariner Whining Sound: Identification + How to Fix

If your Mercury Mariner is experiencing a whining noise, determining where and when the noise is happening is coming from is key to diagnosing and tracking down the cause.   With that in mind, this page is divided by when you hear the whining noise and common causes under those conditions. Is the whining noise … Read more

Mercury Mariner Airbag Light:  Meaning + How to Fix

When you start your Mercury Mariner, the airbag module runs a self-diagnostic check on all its major systems.  If any of these checks fail, you will see an airbag warning light on the dashboard.   Depending on the model year and what country you happen to be in, you may get something along the lines of … Read more

Mercury Mariner Smells Like Gas Diagnosis (5 Main Causes)

If your Mercury Mariner smells like gas, it may indicate a serious issue. It would be best to treat your vehicle as though you have a fuel leak (don’t drive it) until you know there isn’t one.   A bad gas cap typically causes the smell of gas, the evaporative emissions system leaking, overfilling the … Read more

Mercury Mariner Battery Draining:  Causes + Diagnosis

If your Mercury Mariner’s battery is draining, it’s something that’ll need addressing right away.  If it is draining while your Mariner isn’t running, something is drawing current that shouldn’t be. If the battery drains while driving, there’s likely an issue with your vehicle’s alternator. The two primary causes for a battery to deplete are parasitic … Read more

Mercury Mariner Won’t Accelerate: Causes + How to Fix

If your Mercury Mariner won’t accelerate, that is a serious cause for concern.   If your check engine light is on, get a code scanner and see what trouble codes are stored in the PCM (powertrain control module).  They can provide valuable insight as to what the problem may be and help you narrow down … Read more

Mercury Mariner: Pulling to the Left

A vehicle that is pulling to the left can be dangerous to drive.  In the US, left is the direction of oncoming traffic.  This makes pulling to the left even more dangerous than pulling to the right.  Keeping straight when your Mercury Mariner wants to veer into traffic makes driving stressful.  If your Mariner pulls … Read more

Mercury Mariner: Pulls to the Right → Diagnosis

When your Mercury Mariner pulls to the right, it makes driving difficult.  Keeping straight when your Mariner wants to veer off the road is dangerous, and takes all of the joy out of driving.  Fixing a vehicle pulling to the right should be considered a high priority repair.    Mercury Mariner Pulls to the Right … Read more

Mercury Mariner:  Oil Leak Diagnosis

If you’re a Mercury Mariner owner, you’re likely aware of the common issues that can arise with your vehicle. One of the most frustrating problems is discovering an oil leak. Not only can it be a messy hassle to clean up, but it can also be a sign of a more serious issue. Gaskets and … Read more