We will try again in this article to help you to resolve the small complications related to your car. We have recently discovered how to unblock a fuel door, or a tank cap, in this article we will focus on an irritating problem that can be dangerous in bad weather conditions, being a victim of wiper stuck on Mercury Grand Marquis . And to correct this, we will first try to discover why the wipers on your Mercury Grand Marquis remain stuck and, secondly, how to unblock them.

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Why does the wiper of my Mercury Grand Marquis stay stuck?

So we will begin our content with the explanations of the stuck wipers of your Mercury Grand Marquis . To begin with we will focus on the front wipers and in a second time on the rear wiper.

Why are the front wipers on my Mercury Grand Marquis stuck in up or down position?

We will proceed through one at a time the different complications that can bring about the front wipers of your Mercury Grand Marquis to get stuck :

  • One of the most common motives of front wipers getting stuck on your Mercury Grand Marquis is related to the engine that drives them, in reality, these engines can, with time, lose power, and eventually need to be changed. You should find out before the total blockage of your windshield wipers that they work much slower.
  • Less common, but it can still happen, is that your front wiper blades are blocked as a result of an object that prevents the blades from working, examine up to the axis of the blades.
  • If it is a lack of lubrication, you will find that your front wipers are going slower, check fairly quickly the trigger of the problems or else the engines will be forced and damaged.
  • It is possible that the front wipers of your Mercury Grand Marquis may not operate as a result of a defective comodo. To check this, you need to disconnect the output wires and connect them together, if the wipers are working, the comodo is to blame for the problem.
  • Finally, last possibility, the front wipers of your Mercury Grand Marquis are blocked as a result of a power failure, so you will have to check two parts, the relay and the fuse.

Why is the rear window wiper on my Mercury Grand Marquis stuck?

Concerning the stuck rear window wiper of your Mercury Grand Marquis , the roots of your complications are more or less the same. Although there is just one wiper blade at the rear of your car, there are still some dedicated parts that can bring about complications just on the rear windshield of your Mercury Grand Marquis. So, make sure to carry out the same inspections as discovered in the previous part of this content.

What can I do to unlock the wiper on my Mercury Grand Marquis?

Finally, for this second section, we will see what solutions are available to you to make certain that the wipers on your Mercury Grand Marquis are unlocked and that they operate effectively again.

How to unlock the wipers of my Mercury Grand Marquis?

Whether it is for the front windshield wipers or the rear windshield wiper, the solutions will be the same and we will outline them one after the other in this part, it is up to you to adapt them to the part that concerns you. If you have other blocking complications such as a fuel door stuck on Mercury Grand Marquis, do not hesitate to consult our article on this problem.

  • In this case, you will have to locate the engine, then disconnect the power cables of this one (take care there must be some of them related to the different speeds of sweeping), then remove the brushes and the linkage. Finally, you will have to unscrew these anchoring points which are generally fixed on silentblocks and reassemble a new wiper motor on your Mercury Grand Marquis
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  • In this situation, it will be quite basic but expensive to change your commodo, the part generally costs around 200€, once tested you will have the ability to disassemble your commodo by removing the cover from the back of the steering wheel then disconnecting it and removing it with the fixing screws, you will just have to reassemble the new one.
  • Mercury Grand Marquis wiper blocked because of a power failure: In this last situation, you will have to locate the origin of the failure (fuse or relay) and replace the defective part

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To get more tips on the Mercury Grand Marquis, take a look at the Mercury Grand Marquis category.