I saw this tool on an episode of Powerblock TV. I ended up taking my 98 Saturn SL2 to the dealer for the last rear brake job because I didn't want to go through the hassle of recruiting someone to help pump the brakes. (It cost me 540.00 of which 400.00 was for labor!)
When I discovered that my rear wheel cylinders were leaking again, I knew it was time to get this tool. Since the brake fluid was dark colored and probably very old, I planned to flush the system rather than just bleeding it. I felt this bleeder would suit this perfectly.
After reading other reviews, I decided to do one modification. I installed a metal tire valve stem on the tank. (I'm not recommending that anyone should do this, this was done just for my personal use.) Instead of using the hand pump to pressurize the tank, I planned to use the built in air compressor on my battery jump starter. (I finally got to make good use of it since it was worthless as far as jump starting cars, but that's another story.) Since I planned on using the "dry" method, I could use the schrader valve to relieve pressure in the tank, rather than unscrewing the cap.
The cap that goes on the master cylinder is specifically made for my car type and not universal, so it fits on nice and tight, no leaks. An extra gasket for the cap was included.
The gauge goes up to 30 psi but it is recommended that you don't exceed 20 psi.
I kept it between 10-15 psi to be on the safe side. It was more than enough pressure to push the brake fluid through the system. The air compressor in my jump starter pressurized the tank slowly enough so that it wouldn't accidentally over pressurize the tank. Since I did employ the "dry" method, I had to refill the master cylinder and make sure the fluid level didn't get too low. (If it does, you'll be sorry!) It took around four refills per wheel since I was flushing the system rather than just bleeding it. To me, this small hassle was better than the clean up and wasting of brake fluid associated with employing the "wet" method. The schrader valve worked as I had planned, and it was easy to relieve the tank pressure before refilling the master cylinder.
This was the easiest brake bleeding job that I have ever done. I'm almost (I said almost!) looking forward to the next bleeding job! The bleeder is very sturdily built and worked as advertised. My only regret is that I didn't discover it sooner!
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Motive Products GM Power BleederProduct Description: Power Bleeder for GM fits most late model GM cars with round brake reservoir fill cap (most 1992 and later model GM)
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We needed this for a project and we could only find it through Amazon.I purchased the product and emailed the company and explained i needed it asap.They were so nice and made sure i had it on Monday.Well worth the price.Outstanding Seller!!!!!