Your Mercury Grand Marquis’s torque converter is responsible for connecting and disconnecting the engine from the transmission, transferring power smoothly. When this process fails, it can lead to torque converter shudder. Causes of shuddering can include worn torque converter clutches or the gradual application of the torque converter clutch, which may result in shuddering at … Read more
Has the radio in your Mercury Grand Marquis stopped working? If so, there are three common causes for this issue. They are a blown fuse, loose or corroded wiring, and a problem with the radio itself. If your radio comes on but isn’t working, this article will cover that too: Please jump to the section … Read more
If you hear your Mercury Grand Marquis rattling when going over bumps, this sound could be caused by various issues, from minor to more serious. Here, we’ll explore the potential causes of the rattling sound in your car and offer possible solutions. The most common reason for a rattling noise when hitting bumps is a … Read more
There’s nothing worse than finding out your Mercury Grand Marquis’s parking brake is stuck, especially when you’re ready for the day. The good news is this problem can be easily fixed with some simple steps. In this article, we’ll discuss the causes of a stuck parking brake in the Mercury Grand Marquis and how to … Read more
If your Mercury Grand Marquis’s heat only works when driving, there are five leading causes you should check. They are low coolant, air pockets, a bad heater core, an airlocked cooling system, and a malfunctioning thermostat. We’ll start with the easy-to-check common problems and work our way to the harder-to-deal-with rarer issues that could be … Read more
The check engine is the most common warning light that appears in the Mercury Grand Marquis’s instrument cluster. Well over half of this site’s content is related to solving the various reasons why the check engine light comes on. The good news is that the check engine light indicates that there are Diagnostic Trouble Codes … Read more
If your Mercury Grand Marquis has a soft brake pedal, it is a sign of a serious brake system issue. It’s usually caused by air entering the system in some way through a leak. This article covers the six most common causes of a soft brake pedal as well as a solid diagnostic order if … Read more
Your Mercury Grand Marquis’s alarm system is designed to detect potential intruders, keep its contents safe, and keep them from driving your car away. However, it is not uncommon for a car alarm to go off, or keep going off, for no apparent reason– also known as false or “nuisance alarms”. This article will discuss … Read more
If your Mercury Grand Marquis’s key fob is not working, the most common reason is a dead battery. Followed by water damage or fob failure. Below, we’ve listed everything you need to do to get your car’s fob working again. A dead battery is the most common reason a Mercury Grand Marquis’s key fob fails. … Read more
If you’re filling your car up regularly and still getting crummy mileage, there are a few things that could be to blame. In this post, we’ll explore some of the most common reasons your Mercury Grand Marquis is getting bad gas mileage. Before diving in, it’s important to note whether or not your Grand Marquis’s … Read more