Home and Auto Mechanics/SAUTO I need some advice - Page 4

**Bugeater** · 08-15-2018, 09:33 AM

They don't use salt anymore, they spray something on the roads now, I think it's worse than salt. As far as whether that is typical I don't know, but I can tell you my 2002 Grand Cherokee with 180k on it only has a fraction of the rust that truck has on it.

Anyway, I got the other side done, it was just as bad, but at least that horrendous noise is gone. It's like a brand new truck now.

**mikeyis4dcats.** · 08-15-2018, 09:47 AM

Quote:

Originally Posted by Bugeater

They don't use salt anymore, they spray something on the roads now, I think it's worse than salt. As far as whether that is typical I don't know, but I can tell you my 2002 Grand Cherokee with 180k on it only has a fraction of the rust that truck has on it.

Anyway, I got the other side done, it was just as bad, but at least that horrendous noise is gone. It's like a brand new truck now.

calcium chloride

**Bugeater** · 11-30-2018, 08:03 AM

This ****ing truck. Been losing brake pedal pressure lately, almost going to the floor. No obvious leaks anywhere up front or anywhere else, so I assume a wheel cylinder shit the bed in the back. Wrestled both the drums off yesterday and....everything is dry.

So I'm assuming master cylinder going bad...? Seems unusual as in I've hardly ever replaced a master cylinder in anything and they don't seem like they fail very often and it's not like the truck is that old. It does have ABS so there's a bunch extra gizmos on it I know nothing about.

Help?

LiveSteam · 11-30-2018, 12:38 PM

Quote:

Originally Posted by Bugeater

This ****ing truck. Been losing brake pedal pressure lately, almost going to the floor. No obvious leaks anywhere up front or anywhere else, so I assume a wheel cylinder shit the bed in the back. Wrestled both the drums off yesterday and....everything is dry.

So I'm assuming master cylinder going bad...? Seems unusual as in I've hardly ever replaced a master cylinder in anything and they don't seem like they fail very often and it's not like the truck is that old. It does have ABS so there's a bunch extra gizmos on it I know nothing about.

Help?

Just replaced the f-250 master cylinder. Was doing the exact same thing.. only it had 300,000 miles on it.

**Bugeater** · 11-30-2018, 12:45 PM

Quote:

Originally Posted by LiveSteam

Just replaced the f-250 master cylinder. Was doing the exact same thing.. only it had 300,000 miles on it.

Well this one has 1/3 the mileage and is 1/3 the age. I don't recall the last time I had a master cylinder go bad, if I ever have at all. Which is kinda surprising with the parade of junkers I've owned over the years.

**notorious** · 11-30-2018, 08:05 AM

Obviously needs the antifreeze topped off.

**Bugeater** · 11-30-2018, 08:10 AM

I'm thinking the goddamn truck has AIDS.

**SAUTO** · 11-30-2018, 08:56 AM

sounds like either a master cylinder or abs pump bypassing, you dont have a loose wheel bearing again do you?

**Bugeater** · 12-01-2018, 02:39 PM

Quote:

Originally Posted by SAUTO

sounds like either a master cylinder or abs pump bypassing,

Anyway, back to the post that started it all, is there a way to troubleshoot to determine which of these could be causing the problem?

I replaced the wheel cylinders and bled the system but still the same problem. Also checked the hubs just for fun and everything is tight up front.

**Bugeater** · 11-30-2018, 08:58 AM

wheel bearings are still good I think. Why would that affect the brakes anyway? It didn't before.

**Buehler445** · 11-30-2018, 12:26 PM

Quote:

Originally Posted by Bugeater

This ****ing truck. Been losing brake pedal pressure lately, almost going to the floor. No obvious leaks anywhere up front or anywhere else, so I assume a wheel cylinder shit the bed in the back. Wrestled both the drums off yesterday and....everything is dry.

So I'm assuming master cylinder going bad...? Seems unusual as in I've hardly ever replaced a master cylinder in anything and they don't seem like they fail very often and it's not like the truck is that old. It does have ABS so there's a bunch extra gizmos on it I know nothing about.

Help?

Does the ABS light come on?

IIRC, it was ran in salt? It could have damaged the cylinder. On our hydraulic shit, if the rod can get corroded or rusty and hack up the seal when it cycles then it will bypass. That leaks out, but if the barrell is pitted, it can damage the seal on the piston and bypass. Or it could be the pump.

I have no idea, I've never seen those on newer brakes, but on our junky ass tandem gas trucks that we never use the master cylinder goes out every ****ing year.

Quote:

Originally Posted by Bugeater

wheel bearings are still good I think. Why would that affect the brakes anyway? It didn't before.

We had a Chevy that had a wheel bearing go out and it damaged the ABS sensor. It was a ****ing one who sucks the penis to figure out and we had to take it to a mechanic better than us.

**Bugeater** · 11-30-2018, 12:42 PM

Quote:

Originally Posted by Buehler445

Does the ABS light come on?

IIRC, it was ran in salt? It could have damaged the cylinder. On our hydraulic shit, if the rod can get corroded or rusty and hack up the seal when it cycles then it will bypass. That leaks out, but if the barrell is pitted, it can damage the seal on the piston and bypass. Or it could be the pump.

I have no idea, I've never seen those on newer brakes, but on our junky ass tandem gas trucks that we never use the master cylinder goes out every ****ing year.

We had a Chevy that had a wheel bearing go out and it damaged the ABS sensor. It was a ****ing one who sucks the penis to figure out and we had to take it to a mechanic better than us.

No lights on yet, which is surprising since the pedal seems like it's going almost all the way to the floor. I'm going to replace the wheel cylinders on the rear since I have it tore apart anyway and they usually are what takes out the rear brakes. Thing does have over 100k on it now so they're probably due to take a shit.

As far as the wheel bearings, I replaced the hubs a while back, they weren't loose just noisy as hell. I'm guessing that was SAUTO ****ing with me on that one.

**Buehler445** · 11-30-2018, 12:46 PM

Quote:

Originally Posted by Bugeater

No lights on yet, which is surprising since the pedal seems like it's going almost all the way to the floor. I'm going to replace the wheel cylinders on the rear since I have it tore apart anyway and they usually are what takes out the rear brakes. Thing does have over 100k on it now so they're probably due to take a shit.

As far as the wheel bearings, I replaced the hubs a while back, they weren't loose just noisy as hell. I'm guessing that was SAUTO ****ing with me on that one.

Yeah, I'm no brake guy but the wheel bearing thing just happened to us this summer. It wasn't the same symptoms, but that ABS shit can do weird shit. And that sensor (on Chevys) are CRAMMED in there.

Wouldn't hurt to give it a spin while its up.

**SAUTO** · 11-30-2018, 05:26 PM

Quote:

Originally Posted by Bugeater

No lights on yet, which is surprising since the pedal seems like it's going almost all the way to the floor. I'm going to replace the wheel cylinders on the rear since I have it tore apart anyway and they usually are what takes out the rear brakes. Thing does have over 100k on it now so they're probably due to take a shit.

As far as the wheel bearings, I replaced the hubs a while back, they weren't loose just noisy as hell. I'm guessing that was SAUTO ****ing with me on that one.

actually I was serious, and ****ing with you a little, but I've seen a new bearing do that before when a guy didn't get it torqued right at home ... wobbles and pushes the piston in and it's like your pumping the brakes after replacement to get them towork

08-15-2018, 09:33 AM	#2
Bugeater The Maintenance Guy Join Date: Sep 2005 Location: Renovated Bugeater Estate Casino cash: $6232680	They don't use salt anymore, they spray something on the roads now, I think it's worse than salt. As far as whether that is typical I don't know, but I can tell you my 2002 Grand Cherokee with 180k on it only has a fraction of the rust that truck has on it. Anyway, I got the other side done, it was just as bad, but at least that horrendous noise is gone. It's like a brand new truck now.
Posts: 70,443

11-30-2018, 08:03 AM	#4
Bugeater The Maintenance Guy Join Date: Sep 2005 Location: Renovated Bugeater Estate Casino cash: $6232680	This ****ing truck. Been losing brake pedal pressure lately, almost going to the floor. No obvious leaks anywhere up front or anywhere else, so I assume a wheel cylinder shit the bed in the back. Wrestled both the drums off yesterday and....everything is dry. So I'm assuming master cylinder going bad...? Seems unusual as in I've hardly ever replaced a master cylinder in anything and they don't seem like they fail very often and it's not like the truck is that old. It does have ABS so there's a bunch extra gizmos on it I know nothing about. Help?
Posts: 70,443

11-30-2018, 08:05 AM	#7
notorious Supporter Join Date: May 2005 Location: Who knows? Casino cash: $2675884	Obviously needs the antifreeze topped off.
Posts: 83,549

11-30-2018, 08:10 AM	#8
Bugeater The Maintenance Guy Join Date: Sep 2005 Location: Renovated Bugeater Estate Casino cash: $6232680	I'm thinking the goddamn truck has AIDS.
Posts: 70,443

11-30-2018, 08:56 AM	#9
SAUTO Shit Join Date: Jun 2008 Casino cash: $10039067	sounds like either a master cylinder or abs pump bypassing, you dont have a loose wheel bearing again do you?
Posts: 55,715

11-30-2018, 08:58 AM	#11
Bugeater The Maintenance Guy Join Date: Sep 2005 Location: Renovated Bugeater Estate Casino cash: $6232680	wheel bearings are still good I think. Why would that affect the brakes anyway? It didn't before.
Posts: 70,443