Highlights
- In this blog post, we’ll explore the reasons why your brake pad might not be going in and provide solutions to help you get the job done.
- If the pins are worn or damaged, they can prevent the caliper from moving properly and the brake pads will not go in.
- If the bolts are too tight, the caliper will not be able to move and the brake pads will not go in.
Replacing brake pads is a common task for car owners, but it can be frustrating when you encounter problems. One of the most common issues is when the new brake pad won’t go into the caliper. If you’re facing this problem, don’t worry – you’re not alone. In this blog post, we’ll explore the reasons why your brake pad might not be going in and provide solutions to help you get the job done.
Understanding the Brake Pad Installation Process
Before we dive into the troubleshooting, let’s briefly review the brake pad installation process. Typically, you will need to:
1. Remove the old brake pads.
2. Clean the caliper and brake rotor.
3. Apply brake grease to the back of the new brake pads and the caliper guide pins.
4. Insert the new brake pads into the caliper.
5. Secure the brake pads with the retaining clips or pins.
Common Reasons Why a Brake Pad Won’t Go In
Now that you have a basic understanding of the installation process, let’s examine some of the reasons why your brake pad might not be going in:
1. Incorrect Brake Pad Size or Type
One of the most common reasons is that the new brake pads are the wrong size or type for your vehicle. Double-check the specifications of your vehicle and the brake pads you purchased to ensure they are compatible.
2. Caliper Piston Not Fully Compressed
The caliper piston needs to be compressed in order to make room for the new brake pads. If the piston is not fully compressed, the brake pads will not fit into the caliper.
3. Worn or Damaged Caliper Guide Pins
The caliper guide pins allow the caliper to move freely. If the pins are worn or damaged, they can prevent the caliper from moving properly and the brake pads will not go in.
4. Rusty or Corroded Brake Rotor
Over time, the brake rotor can become rusty or corroded. This can make it difficult for the brake pads to slide into place.
5. Seized Brake Pad Retaining Clips or Pins
The brake pad retaining clips or pins can become seized over time, preventing the brake pads from being inserted properly.
6. Brake Caliper Mounting Bolts Not Loose
The brake caliper mounting bolts need to be loose enough to allow the caliper to move. If the bolts are too tight, the caliper will not be able to move and the brake pads will not go in.
7. Brake Caliper Stuck
In rare cases, the brake caliper itself can become stuck due to rust or corrosion. This will prevent the caliper from moving and the brake pads will not go in.
Troubleshooting and Solutions
Now that we’ve identified the common reasons why a brake pad might not go in, let’s explore some troubleshooting tips and solutions:
1. Check Brake Pad Size and Type
Verify that the new brake pads match the specifications of your vehicle. If they are the wrong size or type, you will need to purchase the correct ones.
2. Compress Caliper Piston
Use a C-clamp or brake caliper tool to compress the caliper piston. Make sure the piston is fully compressed before attempting to insert the new brake pads.
3. Clean and Lubricate Caliper Guide Pins
Remove the caliper guide pins and clean them with a wire brush. Apply brake grease to the pins and reinstall them.
4. Clean Brake Rotor
Use a wire brush or sandpaper to remove any rust or corrosion from the brake rotor. Make sure the rotor is clean and smooth before inserting the new brake pads.
5. Unseize Brake Pad Retaining Clips or Pins
If the brake pad retaining clips or pins are seized, you can use a pair of pliers to gently pry them loose. Be careful not to damage the clips or pins.
6. Loosen Brake Caliper Mounting Bolts
Locate the brake caliper mounting bolts and loosen them enough to allow the caliper to move freely.
7. Free Stuck Brake Caliper
If the brake caliper is stuck, you may need to use a hammer and chisel to gently tap it loose. Be careful not to damage the caliper.
Other Possible Causes
In addition to the reasons discussed above, there are a few other possible causes why your brake pad might not be going in:
- Damaged brake pad shims: Brake pad shims can become damaged over time and prevent the brake pads from fitting properly.
- Worn or damaged brake caliper: A worn or damaged brake caliper can prevent the brake pads from fitting properly.
- Faulty new brake pads: In rare cases, the new brake pads may be defective and will not fit properly.
Final Note: Resolving the Brake Pad Installation Issue
Replacing brake pads can be a straightforward task, but it’s important to troubleshoot any problems that you encounter. By following the steps outlined in this blog post, you can identify the cause of the problem and find a solution to get your brake pads installed correctly. Remember, if you are unsure about any aspect of the process, it is always advisable to consult with a qualified mechanic.
Frequently Asked Questions
1. Can I install brake pads without compressing the caliper piston?
No, it is not possible to install brake pads without compressing the caliper piston. The caliper piston must be compressed in order to make room for the new brake pads.
2. How do I know if my brake caliper is stuck?
If your brake caliper is stuck, you will not be able to move it by hand. You may also notice that the brake pads are worn unevenly.
3. What happens if I don’t replace my brake pads?
If you do not replace your brake pads, they will eventually wear out and become ineffective. This can lead to reduced braking performance and increased risk of accidents.
