# Caliper Piston Won’t Compress: Common Causes & Solutions

UPDATE - 2021/04/12

Car owners might come across the issue of ‘Caliper piston won’t compress’ in their vehicles.

They may perhaps notice that their vehicle draws more to one direction when braking, or the brakes are not releasing completely after they let go of the pedal.

Should fix such situations straight away. So, it does not affect the safety of your vehicle.

To help you fix out the caliper piston problem, here are some potential causes and reasons Are given below.

### Causes of “Caliper Piston won’t Compress.”

There are many potential reasons responsible for the problem of not compressing the caliper piston.

Before taking your vehicle to an auto repair shop, let’s explore some possible causes of such problems.

### 1. Wear and Tear of Caliper Bolts

The caliper bolts comprise slides on them that require being lubed.

The shielding rubber boots present on them help keep the lubrication in, but sometimes, these boots get tear away by the hasty mechanics when mounting new brake pads.

As a result, the caliper piston fails to compress.

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# 2. Sticky Pistons

When the brakes are applied, the brake piston seal is deformed slightly.

When the car drivers let the brakes off, they uncoil and help compress the pistons for drag-free running.

If the piston fails to slide adequately on the seals, the seal impedes the piston from permanently compressing.

# 3. Inactivity of the Vehicle

One of the leading causes of not compressing the caliper piston is inactivity.

If you are not using your vehicle for months, the piston may get rusted.

As a result, the corrosion built on the calliper prevents it from compressing fully, stopping your vehicle from running smoothly.

## Fixing the Caliper Piston Compression Problem

Fixing the caliper piston won’t compress problems.

There is a need to diagnose and fix such issues right away carefully, as it may put your vehicle in danger.

One of the main ways to compress your caliper piston entirely is to take care of the brakes.

If you top up the brake fluid and replace the brake pads when required, then you might not run into any problems with the caliper piston.

For a detained caliper piston, A unique tool exists to apply force and compress the pad.

You can use a simple C-clamp to fix this problem.

To see how to use a C-clamp to repair such a problem, you can read some car maintenance tips over the web.

You should also clean the piston properly and apply a light coating of grease to compress the caliper successfully.

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