Can I Use Brake Cleaner To Clean Transmission Parts

Can I Use Brake Cleaner To Clean Transmission Parts

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Can I Use Brake Cleaner To Clean Transmission Parts
Your vehicle's transmission is a complex mechanical system responsible for shifting gears and ensuring your vehicle operates smoothly. Over time, transmission components can become dirty or covered in residue, potentially affecting your vehicle's performance. Cleaning transmission parts is a vital aspect of vehicle maintenance, and some automotive enthusiasts recommend using brake cleaner as an effective cleaning agent. In this article, we'll explore the feasibility and practicality of using brake cleaner to clean transmission parts, its potential benefits, the associated risks, and alternative methods to help you maintain clean and efficient transmission components.

The Importance of Transmission Part Cleaning

Cleaning transmission parts is essential for several reasons:

  • Preventing Slipping Gears: Dirt and residue buildup can cause gears to slip or become less responsive, leading to shifting problems.
  • Improving Transmission Lifespan: Regular cleaning can help extend the lifespan of your transmission components, reducing the need for costly repairs or replacements.
  • Maintaining Fluid Quality: Clean transmission parts help maintain the quality of transmission fluid, preventing premature wear and tear.
  • Optimizing Fuel Efficiency: A clean transmission operates more efficiently, which can contribute to improved fuel efficiency and reduced operating costs.

Brake Cleaner: Composition and Purpose

Brake cleaner is a solvent-based cleaning product specifically designed for cleaning and degreasing various components of the braking system, including brake calipers, rotors, and brake pads. Brake cleaner typically consists of the following components:

  • Solvents: Brake cleaner contains powerful solvents, such as acetone, toluene, or methyl ethyl ketone, which effectively dissolve grease, oil, and grime.
  • Propellants: Propellants, such as propane or butane, are used to disperse the cleaning solvent from the aerosol can.
  • Degreasing Agents: Many brake cleaners include degreasing agents to further break down and remove contaminants.

Brake cleaner is known for its rapid evaporation, which leaves no residue behind. This property makes it popular for cleaning tasks that require a residue-free surface.

Can You Use Brake Cleaner to Clean Transmission Parts?

Using brake cleaner to clean transmission parts can be a practical and effective choice for cleaning purposes. The benefits and considerations include:

  • Effective Grease and Grime Removal: Brake cleaner's powerful solvents effectively dissolve and remove grease, oil, and grime that may accumulate on transmission parts.
  • Rapid Evaporation: Brake cleaner evaporates quickly, leaving no residue behind, which is crucial for transmission part cleaning to ensure that no contaminants remain.
  • Readily Available: Brake cleaner is readily available at most auto parts stores and online, making it a convenient choice for cleaning tasks.
  • Affordable: It is a cost-effective cleaning solution that is often less expensive than specialized transmission cleaning products.
  • Commonly Used: Many automotive enthusiasts and professionals have successfully used brake cleaner for transmission part cleaning, which speaks to its reliability.

The Risks and Drawbacks

While using brake cleaner for transmission part cleaning has numerous benefits, it is important to be aware of potential risks and drawbacks:

  • Health and Safety: Brake cleaner should be used in a well-ventilated area to prevent inhalation of fumes. It can also be harsh on the skin, so safety precautions like wearing gloves and safety glasses are necessary.
  • Paint and Plastic Parts: Brake cleaner can potentially damage paint and plastic components on or around transmission parts, especially if used excessively or without care. It's essential to protect these areas during cleaning.
  • Electrostatic Discharge (ESD): When cleaning electronic components like sensors or control modules within the transmission, there is a risk of generating static electricity that could damage sensitive circuitry. To prevent ESD, it's essential to follow anti-static precautions.

How to Clean Transmission Parts with Brake Cleaner

To clean your transmission parts effectively and safely with brake cleaner, follow these steps:

  • Safety Precautions: Work in a well-ventilated area, wear gloves, and use safety glasses to protect your skin and eyes. Ensure that your vehicle is off, and take safety precautions for your specific transmission part cleaning needs.
  • Locate the Transmission Part: Determine which specific transmission part or component you intend to clean. Transmission parts may include sensors, solenoids, or other mechanical components.
  • Thorough Inspection: Before cleaning, inspect the transmission part for signs of damage, wear, or corrosion. This can help you identify any issues that may require repair or replacement.
  • Cleaning Area Preparation: Ensure that the area around the transmission part is protected from overspray. Cover sensitive areas, like electronic connectors or painted surfaces, to prevent damage.
  • Cleaning Process: Apply brake cleaner to a lint-free cloth or a cotton swab. Gently wipe the transmission part, being cautious not to damage any surrounding plastic or painted parts. Use a controlled amount of brake cleaner to avoid excessive use.
  • Thorough Drying: Allow the transmission part to dry completely before reassembling or performing any necessary repairs.
  • Reassembly or Repairs: After the cleaning process, reassemble the transmission components or perform any repairs or replacements as needed.
  • Testing: Test the vehicle's transmission to ensure that it operates efficiently and responds as expected.

Alternative Cleaning Solutions

If you are concerned about using brake cleaner for transmission part cleaning or if you need a specialized cleaning product, there are alternative solutions available:

  • Transmission Cleaner: Specialized transmission cleaning products are designed for this specific task and are less aggressive on surrounding materials. They are readily available at auto parts stores.
  • Compressed Air: Compressed air can be used to blow away loose dust and particles from transmission parts and surrounding components. It is an effective method for routine maintenance.
  • Throttle Body Cleaning Kits: Throttle body cleaning kits often include a cleaner, specialized tools, and instructions for effective and safe cleaning of various automotive components, including transmission parts.


Cleaning your transmission parts with brake cleaner is a common and effective practice for removing grease, oil, and grime. It is readily available, affordable, and evaporates quickly, leaving no residue behind. However, it is important to use brake cleaner with caution, especially when it comes to painted and plastic parts and potential electrostatic discharge.
Following proper safety precautions, such as working in a well-ventilated area, wearing gloves, and using safety glasses, can help ensure a safe and successful cleaning process. If you are uncomfortable with using brake cleaner, alternative cleaning solutions specifically designed for transmission parts are available to meet your cleaning needs. Regular maintenance and proper cleaning can help keep your vehicle's transmission running efficiently, ensuring optimal performance and longevity.

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