08 exp spongy brake pedal

[Flexpedition]

If any air has entered the ABS modulator, from what I understand you must take it to a Ford dealer (or independent shop with right software/hardware) in order to have the ABS system put into a mode to bleed the air out. Something about cycling solenoids and running the ABS pump which otherwise would not cycle, run, etc, while the vehicle is stationary.

 

[NASCAR Mike]

How old are the rubber brake lines? I too have an 08 Expy and I just changed all of the rubber brake hoses. Mine was built Oct 2007 so they were over 10 years old. It could be the hoses are collapsing when you take your foot off the brake pedal.

I think you will need to bring your truck to the dealer. They can hook up their coimputer and cycle the ABS pump to get all of the air out. They can also get all of the air out of the brake lines and you will have rock hard brakes.

 

[dyablo]

How old are the rubber brake lines? I too have an 08 Expy and I just changed all of the rubber brake hoses. Mine was built Oct 2007 so they were over 10 years old. It could be the hoses are collapsing when you take your foot off the brake pedal.

I think you will need to bring your truck to the dealer. They can hook up their coimputer and cycle the ABS pump to get all of the air out. They can also get all of the air out of the brake lines and you will have rock hard brakes.

Original lines from 08, but I just noticed yesterday that while pressing the pedal it’s hissing. So I’m leaning towards the new reman being bad. Gonna swap it out today. Stay tuned.

 

[NASCAR Mike]

I would buy a new one instead of another remanufactured one. Not worth saving a few bucks on something that was rebuilt by some low wage worker from another country. Most rebuilt parts are from Mexico - not known for their quality.

 

[dyablo]

Well guys just got done replacing the new reman booster from autozone with another of their reman units under warranty.

Stupid thing was such a headache and all because of a dead new part.

Take home lesson here, don’t buy reman parts for such an important part such as brakes.

Thanks for all the trouble shooting.

 

[NASCAR Mike]

I am glad it finally worked out for you.

About two years ago I was looking to replace the turbo on my 2005 Ford Excursion with 6.0 diesel. I went to AutoZone to inquire about a rebuilt unit. The store manager told me that rebuilt units only met 80% of their original performance spec and told me to buy a new one from the dealer. I wish I had know that before I bought one of their alternators. I had to replace them every 3-4 months because something would burn up inside.

I eventually bought a new turbo on Amazon for $400 less than what AutoZone was selling their rebuild one for ($799 VS $1,200). I dont mind buying new aftermarket parts from reputable companies like Dorman and Bosch but I wont buy rebuilt parts anymore. The money you save is not worth the hassle.

 

[JExpedition07]

I try to never buy reman parts, they don’t do it right anymore. Some things you have to, but if it’s avoidable always go new

 

[1955moose]

Ditto to the reman parts problem. When we were diagnosing your problem, you didn't mention the hissing sound from booster. So glad you got it figured out. Well lesson learned for next time, new parts especially on brakes, is the only way to go.

Sent from my N9131 using Tapatalk

 

[dyablo]

Yeah I didn’t notice the noise either. Then it hit me like duh

 

[Flippingroc]

While your doing the work there... consider replacing the flex lines. Just had to do mine and what a freakin difference...