Brake Pedal Goes to the Floor I ABS Pump Test I FORD I No Codes

2005 Ford E150 with a brake pedal that slowly goes to the floor. Some model Ford vehicles such as the E150 and F150 have a test port on the abs pump that can be checked to see if there are leaking internal valves/seals. The mechanical pump can be failing with no ABS (anti lock braking) codes. The video describes the symptoms and how to test, thanks for stopping by the Ozzstar channel. Please comment, like and subscribe down below. Thanks

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#abs #pump

[morgansword]

Glen, I hate to admit to ignorance of this as I pulled wrenches for many years and that was new to me!! Thanks for sharing that as I learned something new....

[joeharvie]

I suspected the master cylinder until I found one line leak. I had viewed many videos in the last two weeks. Your was the first to say how to test master cylinder in place with two plugs! Thank you for teaching!!!

[PapaSmurf]

This is probably the 8th to 10th ABS troubleshooting video I've watched in the last couple of hours, and yet it is the only one that actually showed how to diagnose the ABS Pump itself. Some people jumped to re-soldering joints in the ABS Module and they didn't even mention to try this first. Once you have eliminated; leaks (at each wheel, all the lines, master cyl, brake booster), blown fuses and relays, wiring/connectors/grounds, this should be the next thing to look at.

[GreenFarmer-krlm]

4:04 she's so happy to help. thank sir !! good info, my Ford Escape have same issue but goes and come around.

[jamzwayne]

I have been fighting a slight brake pedal sink for about 5 years. After a ton of break fluid, 2 master cylinders, several trips to the break shop, all I can say is Thank You!
My issue is very minimal, and is intermittent. 1 pump of the brakes, and the pedal wont sink, but sometimes the pedal will sink after I've come to a complete stop. A quick pump of the pedal and its solid again.
NOW, I know what to do to fix it.
You're awesome.

[chillyfly]

That's a stuck open de-pressurisation ('dump') valve in the ABS module... The hole is just a hole on the dry side of the accumulator piston. What's happening here is when the brake pedal is depressed, it's routing master cylinder line pressure straight through the open valve into the sprung accumulator (the 'spring' sound you hear when the piston is pushing the piece if wire out...) Normally this valve only opens as the second stage of ABS intervention after the isolation valve closes first, in order to reduce pressure in the caliper and allow the wheel to rotate again. But in this case it's always open, so master cylinder pressure is just going to move an accumulator piston instead of the pistons in the caliper... I had this same issue on a Nissan GTR on track.

[joepolicaro]

I have been rebuilding my 2001 f150 for a while now cleaning the whole thing up and this is the biggest problem that I have had and I think you just rectify that for me God bless you and thank you so much

[devinvian]

Thanks for another precise explanation of system operation and diagnosis. You do a great job getting your point across with the video. The folks in your area are fortunate to have a good technician like you 👍

[idahoviking]

Your conclusion appears to be that fluid is leaking into the piston that is effectively a pressure blow-off accumulator. Therefore a valve is not closing completely. Is there a way to nondestructively remove clean/replace the valve?

[richardwallinger]

the new Master cyl seals worked great but with the engine running the pedal still goes to the floor . A Foxwell NT 630 pro ABS bleed scan tool bleed has improved things but the brakes are still acting up . I need to go find a dirt road and have a play .. maybe the ABS unit just needs a good workout .

[MikeMike-uphq]

Thank you. I have been fighting with my 2012 Lincoln Mkz for about 4 months now. I couldn't get any fluids to come out of the brake calipers. Hopefully this method help me diagnose my problem. Great job explaining this 👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍

[gospelmissionarytv]

Ooh very helping...it has costed me more than 130 dollars trying to solve it here in kenya. .but thank God i will change Abs Pump

[RustyGlovebox]

Hate that feeling like you stepped on a plum when you go for a panic brake. Nice work Glen diagnosing and getting the Ford back on the road.

[kennydahle]

Great video. Amazing hand-camera coordination. Thanks.

[flowrob]

Thanks, ur video goes into my '97 E350 rebuild library . Saved me Hours of 2nd guessing myself & my work especially with the camera work on coat hanger

[barrygrant]

I drove my wife's Kia Sorento after she returned from a trip out of town, and I noticed the brake pedal seemed to have a lot of travel and would sink to the floor if held. I saw somewhere to check master cylinder versus ABS module problem, to drive on a dirt road about 20 MPH and lock up the brakes a few times. If the problem goes away--at least temporarily--the problem is in the ABS module. I tried it and sure enough, the problem went away for about three weeks before returning. Each time I did the locked- brakes thing, the problem stopped, but for shorter and shorter periods. Eventually I got an ABS warning light. The ABS module was $1300 plus labor, so I traded the POS in. KIA mechanics, as I found out over several trips for repairs, are not the upper end of skilled mechanics.

[sparkey]

Thanks I will start with master cylinder test. Hope thats it If it is the abs pump i will go to pick your part with a helper and some dot 3

[Zib]

Nice tip. I need to check my son's ABS pump on his '06 Escape when he comes home for Spring Break because he's got a soft pedal.

[VoltageDropDiagnostics]

Good video Glen! I didn't know that ford had that test port! Thanks for the tip!

[richardwallinger]

coming back for a second look .. My Citroen C5 pedal to the floor was worn out master cylinder seals .. €6 euros for a service kit and a lot of my time and I now have a like new brake pedal feel .