Brake Fluid Flush – How to Do It (5th Gen RAM 1500)

Sep 17, 2022 | Automotive

Brake fluid is important for keeping your car’s brakes working properly. Over time, the fluid can become contaminated and needs to be flushed out. This video shows how I do a brake fluid flush at home. It’s a simple process that anyone can do, and it will help keep your car’s brakes working like new. Watch the video to learn how to do a brake fluid flush yourself.

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▶ Motive Power Bleeder – Mopar:
▶ Motive Power Bleeder – Ford:
▶ Motive Power Bleeder – Chevy/GM:
▶ Brake Fluid Tester:
▶ Prestone Dot 3 Brake Fluid:
▶ Plastic Syringes:


Video Transcript

so changing the brake fluid in your vehicle is one of those kind of controversial internet topics uh I tend to do it every couple years but I know people that never change it the whole life of the vehicle and they seem to do just fine but uh for me I like to change out that dirty brake fluid every once in a while and that's what we're gonna do today [Music] foreign so my chosen method for doing a brake flush is to do power bleeding and this is a motive products power bleeder I've had this for quite a few years and this is actually my second one and they come with uh different adapters for different master cylinder reservoirs this one's for a light for late model a Chrysler and Dodge vehicles and that just connects there in the middle of the hose highly recommend this if you want to check it out I'll throw a link down in the description and of course for this job we need some new brake fluid this is the Dot 3 variety because this is a DOT 3 system dot four is also interchangeable with DOT three but dot 5 or 5.1 is silicone based I believe and that will damage a DOT 3 system so something you have to be doing this for the first time just uh make sure you get the right stuff for your vehicle I also have here a disposable syringe and I will use this to take out any of the dirty fluid out of the reservoir I also use a line wrench which is a 10 and 11 millimeter size which works front and back on this vehicle this really helps with making it so you don't strip your bleeders on your calipers so I've had that for a bunch of years too uh and then we have the liter bottle and hook this up to your bleeders and catch the fluid it also helps you to see it when the clear fluid or the clean fluid is coming through to know that you've flushed that line and then I just used some brake cleaner and some clean Rags or towels to make sure everything's clean and tidy you don't want to be dropping any of that brake fluid on your paint job that'll eat the paint right away all right before we take this cap off I'm just going to kind of wipe around it make sure it all this dust and stuff is off of the off of here so it's not getting in there and you can tell this fluid is pretty old it's been in there a while and while I'm doing this I'll show you this tester I have this is a brake fluid tester and I actually tell you if you need to replace it or not now usually I replace mine early enough that it's I never really have a lot of moisture in there and moisture gets into your brake fluid it's hydroscopic it actually attracts water so let's just tell you how much moisture is actually in there this one and it's kind of hard to tell s you which flavor of fluid here so dot three four and five point one so it's selectable and then as long as this probe here is clean you can stick that in there and it'll actually give you a reading so this reads one yellow Dot which means it's less than one percent uh moisture contamination now it's been just about two years since I last flushed this [Music] um you know I wouldn't expect there to be a whole lot of moisture in there and it's not the dirtiest fluid I've ever seen but uh yeah since you know if you change it often enough you probably don't need to worry about the moisture content but you know they have these they're pretty inexpensive and I think I got this on Amazon I'll throw a link down there in the description and you can check it out I'm gonna start using the syringe to pull start pulling fluid out of there and I don't want to go too far I just want to get down to close to the minimum amount for the minimum line and you can see here this fluid is kind of honey flavored it's not the dirtiest I've seen but it could use some replacing that new fluid is pretty clear now I forgot on this vehicle it actually has something in the Reservoir there that makes it impossible to get this into the syringe down in there so unfortunately on this one I actually have to put the fluid through the system um anyway there's a min and a Max mark on here and normally I would just empty this down to close to the minimum I don't want to really get below that and then I fill it with fresh fluid and I'm going to fill this up and I'm going to fill it all the way even past the max and this is just how I do it and I'm gonna show you how I use this bleeder and here I actually don't fill this with fluid they do recommend you do that and then the fluid will flow through however I found good results with just uh putting this in empty and then go ahead and pump it up and I pump this up to about 15 psi and the reason I do this dry is because I have had a hose burst on me before these hoses don't last forever especially if you're like me and don't clean them up enough and so I just found it's easier just to leave it empty the reservoir is full and I just have to keep an eye on that as I'm bleeding and make sure it doesn't run past the minimum but that's easy enough to do okay so here is my rear caliper and this is the bleeder here see if I can get this rubber piece off there we go and I'm doing this with the wheels on because fortunately the truck's tall enough I can get under here and do them all but you may need to you know take all your wheels off and do this fortunately I don't have to we'll just hook our bottle up here I believe the rear is a 10 millimeter [Music] nope that's 11. okay there we go now I'll just open up this bleeder and fluid should start to flow here now on mine since I couldn't empty out the reservoir way down of course the first one is going to take the longest because we're getting the most dirty fluid out of the reservoir and the line and then the rest should go a lot quicker than this I'll just have to keep an eye on the reservoir keep filling it up and uh we'll get all the fluid through it and you can see this fluid in here is Pretty Dirty pretty nasty one of the batteries in my microphone went dead around this time so we ended up with no sound but what I'm explaining here is that I went and did the other three wheels exactly like I did the first one running the fluid until it come came out clean and then making sure to check the master cylinder reservoir from time to time just to make sure that didn't run empty and then I'm showing the fluid that came out initially from each line it's pretty dirty and then the clean fluid that came out at the end of the flush on each line now at some point here I explained that usually you do this from the longest line to the shortest line that's most every vehicle there are some exceptions to that so in order to get the longest line to the shortest line you would Go Passenger rear driver rear passenger front driver front and that's based on the master cylinder being on the left hand side of the vehicle or the driver's side of the vehicle so that's it for this video I hope you enjoyed it and I will see you next time [Music]