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How To Replace A Car Door Lock Cylinder

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How To Replace A Car Door Lock Cylinder?


Car door locks are ultimately essential for the security of your car and belongings inside, but they can certainly give you some grief, especially when you need to replace a car door lock cylinder. In this blog, we’re going to discuss all the things you want to know about car door locks, including when to replace a car door lock. More importantly, we’ll give you a step-by-step guide for how to replace a car door lock cylinder.


Why Replace A Car Door Lock Cylinder?

Over time, car door locks can become worn down and difficult to use. The weather and everyday wear and tear can cause the metal to weaken, making it more susceptible to breakage. In addition, the tumblers inside the lock cylinder can become corroded, preventing the key from turning smoothly. A new door lock cylinder is a relatively inexpensive way to restore your car locks to like-new condition.

It can also help to improve the security of your vehicle. When you replace a car door lock with a new lock cylinder, it will have higher tolerances than an old one, making it more resistant to picking and bumping. As a result, changing your car door lock cylinder is an easy way to improve both the function and security of your vehicle.


Can It Just Be Repaired?

If a car door lock becomes damaged, it may be possible to repair it. However, in some cases, it may be necessary to replace a car door lock entirely. In either case, it is important to have a car door lock repaired or replaced as soon as possible. A broken lock can leave a car vulnerable to theft or vandalism. Additionally, it can be dangerous for drivers and passengers if the door latch cannot be securely locked while driving. By taking care of a damaged car door lock in a timely manner, drivers can help ensure their safety and security on the road.

Don’t worry though, to replace a car door lock cylinder is a relatively simple and inexpensive repair that can help to ensure that your car doors remain easy to use for years to come. In addition, when you replace a car door lock with a new lock assembly, it is often much faster and less expensive than replacing an entire car door lock. If in doubt though, a qualified mechanic will be able to assess the damage and determine the best course of action.


Common Problems with Car Door Locks

1. Broken wiring

Wires are an essential part of any car door lock. They are responsible for transmitting the signals that operate the lock control rod and the door’s latch mechanism. Without wires, a car door would not be able to function correctly. There are two main types of wires used in car door locks: power wires and control wires. Power wires provide the electrical current that is needed to operate the locking mechanism, while control wires transmit the signals that tell the lock when to engage or disengage. In most cases, there will be a separate power wire and control wire for each door lock

One of the most common issues, when you want to replace a door lock cylinder, is broken wiring, which can cause the locks to fail to operate or to become stuck in the locked or unlocked position. This problem is often caused by a faulty connection between the door lock switch and the electrical system, and it can be difficult to fix without professional help.


2. Bad solenoid

A solenoid is a device that converts electrical energy into mechanical energy. In a car door lock, a solenoid is used to actuate the locking mechanism. When the door lock switch is turned on, an electric current flows through the solenoid and interacts with the metal components of the door lock, causing it to move and engage the locking mechanism. As a result, the solenoid plays an essential role in keeping your car doors locked and secured.

As the solenoid is responsible for powering the locking mechanism, and if it goes bad, the lock will not work properly. In some cases, the solenoid may become completely stuck in the locked position, making it impossible to open the door without a key. In other cases, the solenoid may become loose and allow the door to be opened without a key. Either way, a bad solenoid can be a major inconvenience.


3. Damaged door cable

The internal parts of the car door include a latch cable which is attached to metal control rods and the outer door handle. In some cases a door latch will stop working adequately as a result of a damaged door cable, leaving you no choice but to replace a door lock cylinder.


4. Worn lock cylinder

One of the most common reasons why you should replace a door lock cylinder is when the lock cylinder in your car door wears out, it can prevent the locks from working properly. The cylinder is the part of the lock that turns when you insert the ignition key.

Over time, the pins and tumblers in the cylinder can become worn, making it difficult for the key to turn. This can cause the locks to become jammed or even to break. In some cases, a worn lock cylinder can also prevent the doors from locking properly.


5. Rusted door locks

Rusted door locks are very common and prevent the locks from working correctly. The most common cause of rust on door locks is moisture, either from rain, snow, or humidity. Once rust starts to form, it can quickly spread and damage the metal. This can make it difficult to insert a key into the lock, or to turn the key once it’s inserted. In some cases, rust can even cause the lock or key to break.

It’s best to focus on prevention and avoid this occurring in the first place, but if your locks do become rusted and fail, you’re best bet is to replace a door lock cylinder immediately.


6. Frozen door locks

If you live in a particularly cold climate, this is a risk you will face regularly through the bitter winter months. It’s a common problem in cold weather, and it can be extremely frustrating when you’re trying to get into your car. There are a few things you can do to prevent this from happening, and a few things you can do to fix it if it does occur.

If you find yourself with a frozen door lock, there are a few things you can do to try to fix the problem. First, you can try using a hairdryer to melt the ice. Just be careful not to overcook the lock, as this could damage it. Another option is to pour warm water (not boiling!) over the lock. This will usually melt the ice, but again, be careful not to damage the lock itself.

Prevention is always the best cure. One simple way to prevent frozen door locks is to use a lock de-icer. This is a spray that you can apply to the lock which will help to prevent ice from forming in the first place. Another method is to pour a small amount of rubbing alcohol into the keyhole. This will also help to prevent ice from forming, and it can also help to melt any ice that has already formed.



Can a locksmith replace an ignition cylinder? Read Now!



How To Replace A Car Door Lock Cylinder: Step-By-Step Guide

If you’ve decided you need to replace a car door lock cylinder and you’d like to attempt this yourself, see our step-by-step guide on how to replace a door lock cylinder. Firstly make sure you purchase the correct door lock cylinder that matches your vehicle VIN (same key), otherwise, you’ll also need to replace the ignition cylinder, and other door locks and get new car keys.


Equipment required when you want to replace a car door lock cylinder:

  • New Lock Cylinder
  • Screwdriver
  • Needle-Nose Pliers
  • Preparation


Step 1: Remove The Door Panel

Pop off the plastic covers to expose the screws. Unscrew to release the door frame. By working your way around the plastic panel the door panel will pop off. Then you can gently peel off the plastic sheeting covering the interior side of the metal door frame. With the plastic interior panel off you will be able to replace a car door lock.


Step 2: Remove The Old Cylinder

Using a pair of needle nose pliers remove the plastic bracket clip holding the cylinder in place. Then you can simply slide the old cylinder out and replace a car door lock cylinder with a new one.


Step 3: Complete The Lock Assembly

Once you’ve slid the new cylinder into the slot you can close the brackets to secure the door lock cylinder tight into place and test the key in the cylinder before you replace a car door lock panel and plastic sheeting. Reconnect up all the wiring, and plastic covers and tighten all screws.


Step 4: Reconnect The Battery And Test

Even though you’ve had a quick test run before closing up the door panel, you need to reconnect the battery and test that the central locking is working when you are finished to replace a car door lock cylinder. With any luck, you’ve nailed it and it all works great.


Need Some Help To Have Your Car Door Locks Work Like New Again? Call The Locksmith Expert!

We hope that this information and advice have been helpful and you’ve been able to resolve your faulty door lock. As you can see, in most cases it’s a pretty simple problem to fix.

If you’re struggling or don’t feel confident attempting the repair yourself, then get in touch with a professional automotive locksmith from The Locksmith Expert who will be able to help you to replace a car door lock!


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