How to Clean and Maintain Your Motive Power Bleeder
A Power Bleeder that's cleaned after every job will seal, pump, and hold pressure for years. One that's put away with old fluid inside won't. Here's the full maintenance routine, taken straight from Motive's official Power Bleeder instructions. It takes about 10 minutes.
What You'll Need
- Isopropyl (rubbing) alcohol, or a weak Simple Green solution if you don't have alcohol
- Clean water for rinsing
- A container for the used fluid and a lint-free rag
- Brake-fluid-compatible grease (only if the pump shaft ever needs it)
Step 1: Empty and Dispose of Leftover Fluid
Never store brake fluid in the Power Bleeder. Glycol-based fluid absorbs moisture from the air, and leftover fluid can damage seals and contaminate your next bleed. Release all pressure, drain the tank and hose, and dispose of the fluid according to your local regulations.
Step 2: Clean with Isopropyl Alcohol
Pour isopropyl alcohol into the tank, pressurize lightly, and pump it through the tank and hose assembly until it runs clean. If you don't have isopropyl alcohol, a weak solution of Simple Green works too.
Do not use brake parts cleaner or any solvent not made for plastics. These can crack or cloud the tank and break down the seals.
Step 3: Rinse Well
Rinse the tank, cap, and hose thoroughly to clear any cleaning residue.
Step 4: Dry Completely Before Reuse
Let every part air-dry fully, with the cap off and the hose hanging straight so water can drain. Moisture left in the system ends up in your brake fluid on the next job, and that's exactly what bleeding is supposed to remove.
Step 5: Lubricate Only If Needed
The pump mechanism normally doesn't need lubrication. If the pump shaft starts to stick, apply a small amount of brake-fluid-compatible grease. Never use petroleum-based oil, which attacks the rubber seals.
Storage and Hose Replacement
- Store the Power Bleeder out of direct sunlight, which degrades the plastic tank over time.
- Don't store it with kinks in the hose.
- Replace the hose every 3–4 years: part 0409 for ½-gallon tanks or 0412 for gallon tanks.
- Check the cap gasket before every use. A worn or cracked gasket is the most common cause of leaks at the reservoir.
Power Bleeder Cleaning FAQ
Can I use rubbing alcohol to clean my Power Bleeder?
Yes. Rubbing alcohol is isopropyl alcohol, which is the cleaner Motive recommends.
Can I use denatured alcohol, Windex, or brake cleaner?
Stick to isopropyl alcohol or a weak Simple Green solution. Brake parts cleaner and other harsh solvents can damage the plastic tank and seals. Other household cleaners aren't on Motive's approved list, so we don't recommend them.
What if I don't have any alcohol?
Use a weak solution of Simple Green, rinse well, and make sure the unit is completely dry before your next bleed.
How often should I clean it?
After every use. Brake fluid left in the tank or hose absorbs moisture and can degrade the seals.
My Power Bleeder won't hold pressure. What should I check?
Check the cap gasket for wear or cracks, make sure the adapter is seated squarely on the reservoir, and wrap threaded brass hose fittings with Teflon tape. If the hose is more than 3–4 years old, replace it (0409 or 0412).
Need a replacement part or a new kit? Shop brake bleeder kits, adapters, or see the full Power Bleeder instructions.
Also in Blog Posts
How to Test Brake Fluid and Know When to Flush It
Fluid Transfer Pumps: How to Move Gear Oil, Coolant, and Brake Fluid Without the Mess
