One of the more common issues that can occur is a vehicle that shakes when accelerating. If your Mercury Grand Marquis is shaking when accelerating, it’s something that should not be ignored. While the vibration can be annoying, it is often indicative of a serious problem. Speed Matters Vehicle speed matters when you feel … Read more
One of the most annoying things that you can coming from under the hood of your Mercury Grand Marquis is a ticking lifter. The ticking noise makes it sound like the engine is going to give up the ghost at any time. There are a few things that can cause a lifter to tick, such … Read more
P0171 and P0174 both indicate that there is a lean condition present in your Mercury Grand Marquis. By themselves, these are some of the most common OBD2 codes. When they appear together, it indicates that the entire engine is running lean. Definition Both of these codes are generic, which means they have the same … Read more
Your Mercury Grand Marquis’s clutch provides a direct connection between the engine and transmission. Without it, it can’t move at all. This connection requires a tremendous amount of pressure. This guide is intended to help you determine why your clutch is slipping on the flywheel. Note: This article is for manual cars only. Here’s the … Read more
A sputtering engine can indicate a number of problems. If your Mercury Grand Marquis has a sputter, it is most likely going to be caused by bad fuel system, ignition system, MAF sensor, or bad catalytic converter. Your Grand Marquis’s engine is a giant pump. It pulls in air (where it is measured by the … Read more
P0037 is a generic OBD II trouble code, which means that it has the same meaning for the Mercury Grand Marquis as it would for any other car or truck. Diagnosing this code is relatively straightforward. It is usually caused by a bad oxygen sensor, or a wiring issue. This code is closely related to … Read more
The single most important safety feature in your Mercury Grand Marquis is a good set of brakes. If your brake pedal is going to the floor, it indicates that there is a serious problem in the braking system. When the pedal goes to the floor, it’s usually caused by a bad master cylinder, leaking brakes, … Read more
One of the most common automatic transmission problems is shifting hard. If your Mercury Grand Marquis has a hard shifting transmission, it can be uncomfortable to drive and a sign of serious problems. If your car’s transmission is shifting hard, it can cause a harsh ride and lead to potential damage over time. Numerous factors … Read more
Rotors are metal discs that are visible behind the Grand Marquis’s wheel. They work together with the calipers and brake pads to slow down your Mercury Grand Marquis. Due to braking friction, rotors have to withstand and dissipate a tremendous amount of heat. This causes the rotor surface to be uneven making the brake … Read more
P0031 is a generic code, which means that it has the same meaning for the Mercury Grand Marquis as it would any other OBDII equipped vehicle. As far as diagnostic trouble codes go, this is a relatively easy one to diagnose. It is usually caused by a bad oxygen sensor, or a wiring issue. Table … Read more