Brake peddle goes to floor after starting vehicle

Maybe it's your bleeding technique?

Here is the way I was brought up!

See this link

https://www.2carpros.com/articles/brake-pedal-goes-to-the-floor

The Medic

Used three different ways to bleed them. The gravity, two man pump and release the screws and used a vacuum pump. Gone through each method three times with no change. There cannot be that much air in the ABS system can there?

At times, yes. Especially if you are not closing the bleeder screws properly.

Been shade tree mechanic for forty years. I think I should be able to close bleeders properly by now. What ever the problem is I know it has to be something stupid.

Here is the bleed sequence as per Mitchel 1let me know how you get on.

I have this same write-up in one of my books. Have done this three times today and have great peddle after it is done, but when I start the engine the peddle just hits the floor when you push on the peddle. Thanks for your time!

I went through this with a Suburban with ABS you can try and try to bleed the brakes did not happen. What you do is bleed the brakes like normal.Then you use the automated bleed procedure with a professional high end expensive scan tool. What they have you do is hold the the brake pedal while running the automated bleed procedure with the scan. Sometimes you have to do it more then once. It runs the ABS system to help purge the air out of it.

I was thinking my truck was to old to have that type of ABS.My truck is a 2002. The problem is I cannot drive it to the garage the way it is. I guess I could cut holes in the floor and use my shoes.

I have had pre-2000 vehicles requiring a scan tool to bleed the brakes. I wish there was a go around before I got my professional scan tool that did stuff like that. I had to turn away work because of it.

Thanks for the info! I guess I will find a way to get it to the shop.

You have tried your best to do it without it a scan tool. Unfortunately there are a lot of repair situations that require special tools. I wish it was not like that.

WELL, Got it done! It took me a while. Did not need NO scanner tool, This truck is to old for that method. Just spent the day bleeding and got the air out. Thanks to everyone that replied.

Glad we could help. please use 2CarPros anytime

I was going by the repair information I had with abs had a 2005 suburban same bleeding procedure couldn't be bleed till using the scan tool.Glad to hear you got it.