FOUR UNCLES 3L Brake Bleeder Vacuum Pump Kit - Pneumatic Brake Fluid Extractor with 1L Refilling Bottle & Adapters for Automotive Bleeding, One-Person Operation

I have only used this product one time so far, but it was very easy to use. This worked very well as far as I am concerned. The only thing was that the hose didn’t seal 100% and would create air bubbles. Once the brakes were bled using this product, they worked fantastic. I would recommend this For the enthusiast.

Easy to setup & easy to use (1 person job) . Saved a lot of time verses manually pumping the brake (2 person job). Well constructed & great quality at a great price.

I have only used this twice but it has performed well very well and easy to use and seems good quality and workmanship.

This kit works great and allows brake bleeding without a second person to assist. Moreover, it got air out of my lines that I wasn't able to get out even with a second person and brakes are MUCH better now. For doing a full fluid change, the ability to use the tool to remove fluid safely and cleanly from master cylinder is a bonus. The large 2L capacity is enough for a full fluid change and bleed.

I used this bleeder once and it worked great!.The second time though, the nifty quick connect coupling was frozen, presumably from dried brake fluid.I saw that coupling could be unscrewed so I figured I'd remove it and soak it in acetone for a few days.NOT!if you unscrew it, there is no way to reconnect it because the top is glued on and the coupling is secured by a nut that falls off into the container!A simple design fix would be to move the pour spout fitting adjacent to the quick coupling so that you can hold the nut with your finger when you screw the coupling back on.What I did was to make a second plug with an o-ring and bored a second hole by the coupling to fit. Than I could hold the nut on with my finger and refit the coupling. I suppose you could also use a larger pvc pipe thread plug that would allow a finger through and tap the glued on top to fit the screw in plug or just use a rubber stopper.The best course of action is probably to flush the quick coupling after you drain the container than you don't have to do anything.PS: Soaking the coupling in acetone did indeed free it.

Product worked great,took a little bit to get used to.open valve on vacuum part way seems to work best.i think to much vacuum pulls air around bleeder valve into hose.less is better.i would buy this unit again in a heart beat.saved alot of money compared to what a garage would have charged. Brakes work great again.

I guess the first thing I will review is the brake fluid bottle, this is a terrible design and does not work well to attach to a master cylinder, the manufacturing left large plastic lips from where the mold faces met each other on the thread surface and these needed to be removed in order to stop the leaks at the. cap. The clamp that is attached to the tube grips the master cylinder in the wrong spot which causes the entire bottle to shift to the side. This idea would have been much better implemented had they just given a plate that screwed onto the actual brake fluid bottle which you could then turn upside down and rest on the master cylinder. Now onto the actual brake bleeder. When this thing arrived I was unable to open it. I had to insert the handle in a bench vise and use a strap wrench to turn the base. Once I was able to separate the top from the base I discovered that sloppy manufacturing was the cause again. The threads on the actual container had thin plastic lips hanging from them all over the place, there was a nasty looking gnarled edge at the top of the container which was preventing it from contacting the O-ring. The threads on the top portion of the bleeder were also terribly formed, I had to use sandpaper and a file to clean them up. once I corrected all of the manufacturing defects it was time to connect it to shop air and test the vacuum performance. This was another place where I was disappointed in my purchase. This tool will pull a vacuum as long as you hold the trigger, as soon as you let go of the trigger all of the vacuum is lost. This could very easily have been prevented by installing a check valve in the underside of the trigger assembly. I ended up doing so for an additional cost of course. There are no extra hoses, brake bleeder adapters or anything else included with this item. For all of the work I had to invest making this tool usable I could have either designed my own or spent more money with another manufacturer. Unfortunately after all of that being said I do not recommend this tool. There is no guarantee that you will be able to correct the manufacturing defects and I would not waste my time trying.

Product worked well for fluid flushes. I'll be flushing all my cars on schedule, now, that it is an easy one-man job. Product was of good quality, although I struggled a little with the quick connector. Overflow bottle holds plenty of fluid for an entire car/truck. I did refill it for my RV, just to be sure all lines were flushed. ball valve on the overflow bottle works very well to stop/start the flow. I chose a vacuum bleeder over a pressure bleeder because I wanted to flush multiple cars. This vacuum bleeder will fit to any brake bleed screw, unlike the pressure bleeders where you need different reservoir caps depending on the make/model.