Rotors and brake pads for 2024 Ford Maverick

[TRUCKHEF]

It's a scam.

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[Maverick123]

... The concern is on a vehicle that never gets a brake job the fluid will out live its useful life. Gets moisture in it. Ford recommends every 3 years. Last week I had a person run a red light and pull a left turn in front of me. All 4 wheels locked up just fine. Missed her by only a couple of feet. Then she looks at me like I'm the crazy person!

Compromised brake fluid can still do panic stops

Where it'll fail is something like driving down a long, steep mountain pass and you have to ride the brakes. When the brakes get hot enough the fluid inside the calipers boils and the pedal goes straight to the floor leaving you with no brakes

 

[David Wilhelm]

You missed the point. I chaged the fluid.

 

[Maverick123]

You missed the point. I chaged the fluid.

I understood that! The reply wasn't for you specifically, I wanted to point out to people reading this thread that just because you can do a panic stop, doesn't mean the fluid is still good for extreme use

 

[The Real Maverick]

I understood that! The reply wasn't for you specifically, I wanted to point out to people reading this thread that just because you can do a panic stop, doesn't mean the fluid is still good for extreme use

I thought about that too.

However- hydraulic brakes run at 900 psi to 1400 psi according to a 30 sec search.

Water boils at 900 psi at 534°F and 700°F at 1400 psi.

Possible, but very rare to lose brakes from water in the lines.

It's late. Maybe I'm missing something but why wouldn't 900 psi steam slow you down?

 

[Tbone289]

It's late. Maybe I'm missing something but why wouldn't 900 psi steam slow you down?

Typical power brake line pressures can reach well above 900psi and steam is much more compressible than water or hydraulic oil

 

[Master Blaster]

Compromised brake fluid can still do panic stops

Where it'll fail is something like driving down a long, steep mountain pass and you have to ride the brakes. When the brakes get hot enough the fluid inside the calipers boils and the pedal goes straight to the floor leaving you with no brakes

That's why Ford is using DOT4 fluid instead of the old DOT3 spec in their possibly fully-loaded trucks. It needs to be changed more often because its more hygroscopic, but handles quite a bit higher temperatures when doing long downhill braking runs in the EB model. Also on the Hybrid you get serious "engine" braking in L mode and still don't even need the friction braking to engage even on long 20% grades.

 

[Emmett Hebert]

Had a 18 month old Mitsubishi Outlander and the front rotors were scored badly. Ford dealer had kept it over night for a recall. Think an employee did a little switch on me. Don't deal with that place anymore and got rid of the Mitsu

 

[Maverick123]

Fact: you can stop with

I thought about that too.

However- hydraulic brakes run at 900 psi to 1400 psi according to a 30 sec search.

Water boils at 900 psi at 534°F and 700°F at 1400 psi.

Possible, but very rare to lose brakes from water in the lines.

It's late. Maybe I'm missing something but why wouldn't 900 psi steam slow you down?

It's because gases are compressible. All the pressure you apply suddenly goes into compressing the steam instead of pushing the brake pistons

 

[MetalThunder]

My dealer while pushing an extended warranty at purchase - kept telling me things like this - brakes at $1400 an axle - the more I said no the more warnings came about shop rates (at the dealer) - I asked him how fast could i get my truck into the shop if i needed brakes today - he said about a month - Homey not playing that game lol

 

[The Real Maverick]

Typical power brake line pressures can reach well above 900psi and steam is much more compressible than water or hydraulic oil

Air brakes are on trucks and trains. Under 100 psi usually.
Larger cylinders for sure so more inches of working surface. But the compressibility not an issue.

 

[The Real Maverick]

It's because gases are compressible. All the pressure you apply suddenly goes into compressing the steam instead of pushing the brake pistons

I think it's still going to stop you though. Maybe slightly slower reaction time.

Steam (water vapor) in the lines would act like a spring. It's still going to transfer force.

1000 psi is still 1000 psi.

Air - steam - water vapor - water - oil - all will move a piston in a cylinder.

Maybe it comes to a very basic level- piston travel distance.

With a liquid in the lines, one inch of travel on this end will be one inch of travel on the other end if the hose / pipe diameter stays the same. I can imagine if there was vapor in the lines it may take 2 inches of travel on one end to get 1 inch of travel on the other end due to the "spring compressing" effect.

I still can't imagine a total loss of braking power. But reduced, I can see.

 

[tom_tucker]

Rear rotors. Dealer has free yearly safety inspections. They don't say shit about it now. If they tell me I need new rotors to pass State Insp., I'll remind them that the NRA Headquarters is only a mile away and I have anger mgmt issues. You wanna rip us off? Stare down a barrel. I'll bet they don't even mention it...

 

[Tbone289]

Air brakes are on trucks and trains. Under 100 psi usually.
Larger cylinders for sure so more inches of working surface. But the compressibility not an issue.

Pneumatic vs. Hydraulic systems.

The higher compressibility of a gas introduced to a hydraulic system that is designed to transfer force through a relatively non-compressible medium isn't an issue? I disagree. Will you lose all braking ability? Maybe not, but the performance is going to be greatly reduced.

 

[The Real Maverick]

Rear rotors. Dealer has free yearly safety inspections. They don't say shit about it now. If they tell me I need new rotors to pass State Insp., I'll remind them that the NRA Headquarters is only a mile away and I have anger mgmt issues. You wanna rip us off? Stare down a barrel. I'll bet they don't even mention it...

That's not great that only a small percent of your pads are touching the rotors.

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