2002 yukon squishy brakes - The 1947 - Present Chevrolet & GMC Truck Message Board Network

comicaltatertot · 12-05-2014, 12:16 PM

So we have a 2002 GMC Yukon XL and the brakes are just not good. They have almost brand new rotors and pads, but when you press the brakes the brakes don't engage until the brake pedal travels 3/4 of the way to the floor, not until the pedal is pressed almost to the floor do you actually stop.

This is not a new problem have been having it for a few years now.

What would cause the brakes to do this? any recalls for this?

There are no abs lights on, or anything like that.

Thanks for the help
Tate

LT1 Burb · 12-07-2014, 12:57 AM

I would probably replace the master cylinder, also the rear calipers are prone to failure on those. I replaced all my calipers and installed cross drilled slotted rotors on the front with OEM pads and it made a huge difference on my XL.

gmclowsierra · 12-09-2014, 11:30 AM

just had the same issue with my 2000 Yukon. replaced the master cylinder all the pads and rotors and front hubs. my hubs were noisy but they were not loose. replaced everything and now they are like new. that was one thing I hated about that truck. now its great.

comicaltatertot · 12-09-2014, 10:15 PM

Cool thanks for the help I will do that and let ya know how it goes

*JonnyC10* · 12-09-2014, 11:51 PM

Might need to have your ABS pump cycled. A mechanic can do it with their scan tool. IVe read a lot about this on forums. I have an 02 Tahoe and am in the same boat. Havent had it done yet though. Some people force the abs pump on several times by slamming the brakes on to kick the abs in with success.

68C15 · 12-17-2014, 08:37 AM

Have you done a brake job? Did you push the Pistons in without opening the bleeders? It's a good way to give your ABS unit a dirty fluid enema. Then you have a valve stuck open allowing fluid to fill accumulator.

comicaltatertot · 12-19-2014, 01:48 AM

Quote:

Originally Posted by 68C15

Have you done a brake job? Did you push the Pistons in without opening the bleeders? It's a good way to give your ABS unit a dirty fluid enema. Then you have a valve stuck open allowing fluid to fill accumulator.

Yeah I do the brakes on them. Are you supposed to open the bleeders when you depress the pistons?

68C15 · 12-19-2014, 07:37 AM

Quote:

Originally Posted by comicaltatertot

Yeah I do the brakes on them. Are you supposed to open the bleeders when you depress the pistons?

only if you want to prevent damage to the expensive ABS unit

comicaltatertot · 12-19-2014, 10:12 AM

Quote:

Originally Posted by 68C15

only if you want to prevent damage to the expensive ABS unit

Well I think that would be a good idea haha. I am guessing just open the bleeder screw while I compress the pistons and then close it back up?

gmclowsierra · 12-19-2014, 03:51 PM

ive done thousands of brake jobs. new, old never had an issue with the fluid causing any problems pushing them back.

12-05-2014, 12:16 PM	#1
comicaltatertot Registered User Join Date: Aug 2014 Location: Ogden, Utah Posts: 96	2002 yukon squishy brakes So we have a 2002 GMC Yukon XL and the brakes are just not good. They have almost brand new rotors and pads, but when you press the brakes the brakes don't engage until the brake pedal travels 3/4 of the way to the floor, not until the pedal is pressed almost to the floor do you actually stop. This is not a new problem have been having it for a few years now. What would cause the brakes to do this? any recalls for this? There are no abs lights on, or anything like that. Thanks for the help Tate __________________ 1955 Chevrolet 3100 2nd series 235 1972 Chevrolet k/20 long bed 4x4 350 2005 GMC Sierra 5.3 L33

12-07-2014, 12:57 AM	#2
LT1 Burb Registered User Join Date: Sep 2010 Location: Winchester Oregon, formerly Vancouver BC Posts: 2,949	Re: 2002 yukon squishy brakes I would probably replace the master cylinder, also the rear calipers are prone to failure on those. I replaced all my calipers and installed cross drilled slotted rotors on the front with OEM pads and it made a huge difference on my XL.

12-09-2014, 11:30 AM	#3
gmclowsierra Registered User Join Date: Mar 2008 Location: williamsport,pa Posts: 329	Re: 2002 yukon squishy brakes just had the same issue with my 2000 Yukon. replaced the master cylinder all the pads and rotors and front hubs. my hubs were noisy but they were not loose. replaced everything and now they are like new. that was one thing I hated about that truck. now its great.

12-09-2014, 10:15 PM	#4
comicaltatertot Registered User Join Date: Aug 2014 Location: Ogden, Utah Posts: 96	Re: 2002 yukon squishy brakes Cool thanks for the help I will do that and let ya know how it goes __________________ 1955 Chevrolet 3100 2nd series 235 1972 Chevrolet k/20 long bed 4x4 350 2005 GMC Sierra 5.3 L33

12-09-2014, 11:51 PM	#5
JonnyC10 Account Suspended Join Date: Jul 2014 Location: NH Posts: 280	Re: 2002 yukon squishy brakes Might need to have your ABS pump cycled. A mechanic can do it with their scan tool. IVe read a lot about this on forums. I have an 02 Tahoe and am in the same boat. Havent had it done yet though. Some people force the abs pump on several times by slamming the brakes on to kick the abs in with success.

12-17-2014, 08:37 AM	#6
68C15 blood type; Retumbo Join Date: Jan 2004 Location: next to my reloading bench Posts: 10,269	Re: 2002 yukon squishy brakes Have you done a brake job? Did you push the Pistons in without opening the bleeders? It's a good way to give your ABS unit a dirty fluid enema. Then you have a valve stuck open allowing fluid to fill accumulator. __________________ Man rule #77...if you own a 67 stepside with a caddy 472 you will never be in danger of loosing you man card

12-19-2014, 03:51 PM	#10
gmclowsierra Registered User Join Date: Mar 2008 Location: williamsport,pa Posts: 329	Re: 2002 yukon squishy brakes ive done thousands of brake jobs. new, old never had an issue with the fluid causing any problems pushing them back.



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