Mercury Montego P0452:  FUEL Tank Pressure Low Diagnosis

P0452 is a generic OBD II code that can occur in the Mercury Montego.  It means that your Montego’s EVAP system has detected low fuel tank pressure. The evaporative emissions control system (EVAP) sends fuel vapors from the fuel tank to the intake manifold to be burned off.  When the pressure in the system is … Read more

Mercury Montego P2187:  Bank 1 A/F Mixture Too Lean”

P2187 is a DTC code that can occur in the Mercury Montego.  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 Montego’s oxygen sensor on Bank 1 (usually sensor 1) has detected that the air … Read more

Mercury Montego Overheating While Idle: Causes + Fix

There are a few reasons why your Mercury Montego 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

Mercury Montego:  P0068 MAP/MAF Throttle Position Correlation

P0068 in the Mercury Montego 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 Montego’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

Mercury Montego: Engine Smoking Causes + Diagnosis

A smoking engine is a serious thing.  If your Mercury Montego’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 Montego’s engine would smoke include overheating, burning oil, or … Read more

Mercury Montego:  Bad Sway Bar Links (Common Symptoms)

Sway bar links are responsible for connecting your Mercury Montego’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 Montego.  If you have a bad sway bar link, your vehicle will … Read more

Mercury Montego Shuts Down While Driving (Common Causes)

If your Mercury Montego 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 Montego would randomly die while driving.  Before looking at anything, is the check engine light on?  If it is, … Read more