Question about 2005 GMC Envoy

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2005 gmc envoy front pads won't release put on 2 new calipers,2 new brake hoses, new rotors & pads. can you help?

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Possibly the master cylinder has the intake hole plugged or restricted, who knows why, maybe dirt, corrosion. I would replace the master cylinder. Another possibility may be a leaking master cylinder where it mounts to the vacuum brake booster, the booster corrodes by pulling in the brake fluid. Brake fluid being exposed to humid air assimilates moisture thereby rusting the booster. Replace both if the booster is wet or a rusty streak found below the master cylinder. Not an expensive fix.

Posted on Dec 03, 2014

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Check ur master cilinder , a way to know if your wheels are free, jack it up turn the wheel by hand if not realese the bleeder on top of the caliper and try again if it is free probably u need to replace master cil.

Posted on Dec 03, 2014

  • Manuel Quesada
    Manuel Quesada Dec 03, 2014

    Check ur master cilinder , a way to know if your wheels are free, jack it up turn the wheel by hand if not realese the bleeder on top of the caliper and try again if it is free probably u need to replace master cil.

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3 Answers

My left front tire is locked up my husband repalced the pads whats wrong


Most likely a warped rotor and with new pads it has locked it's self up.

Mar 03, 2016 | 2005 GMC Envoy

1 Answer

2005 gmc envoy front pads won't release put on 2 new calipers,2 brake hoses,2 new rotors&pads.I forgot,put on new Master cylinder.changed calipers twice thought they might be defective.


On a 2005 vehicle-- at most-- you may need
new rotors & pads,that is all

I'm lost at that story

Don't really grasp what your doing
or what you got yourself into

If I ask any questions-- I feel I will insult you,
so weigh in if you want

Dec 03, 2014 | 2005 GMC Envoy

1 Answer

I had new pads installed on the front of my 2005 chevy equinox, the rotors were turned and it stops perfectly execpt the front right wheel always squeaks and is geting worse even though I used the 20/30...


I personally never have had one braking issue, in 47 years
of doing brake work,on any vehicles

That said & not to write book here

The brake work & choice of friction material
(brake pads) was not done correctly

Very few shops remove rust from anything
Rotor mounting surfaces,wheel hub surfaces,
calipers,caliper sliding surfaces,pad siding surfaces

Then they use no lube, so pads can move & release

They don't use MFG Specific & quality pads

A proper professional job would go for at least
$300.00 for front or back,just 2 wheels

Rotor machining is critical

I think your OEM Rotors that were machined, most likely
were okey new & not a good grade of Chinese Steel to
be machining

Aug 03, 2011 | 2005 Chevrolet Equinox

1 Answer

2005 GMC Envoy, no brake fluid is getting to the right front caliper. disconnected the brake line where the rubber line and the metal line are attached, pumped brakes and get absolutely no fluid through...


You may have a defective line on the right front brake. GM had a batch of bad lines installed on several year models. I had one collapse on mine with the caliper closed and burned my caliper, rotor and pads. Try to disconnect the metal line further back at the equalizer and see if you get fluid there. If you do replace line.

Mar 11, 2011 | 2005 GMC Envoy

1 Answer

How can I change the rotors and brakes on a 2006 Cadillac?


Front brake
Step 1: Identify Front Disc Brake Components
brake_pads_rotor.jpg
Front Wheel Drive Brake Assembly
Most front disc brake components include: brake rotor, brake pads, brake caliper, caliper mount and brake flex hose. Brake service usual occurs between 20,000 and 40,000 miles depending on driver habits, road conditions and brake pad/ rotor materials used.
Step 2: Remove Brake Caliper to Replace Pads
brake_pad_set.jpg
Removing Brake Caliper Mounting Bolts
Locate primary caliper mounting bolts; apply wrench pressure counter-clockwise (When looking at the head of the bolt) to remove the bolts, upper and lower. Make sure the bolt threads are in good shape and replace if necessary.
Step 3: Remove Front Brake Caliper
remove_brake_caliper.jpg
Remove Front Brake Caliper
After removing the primary caliper mounting bolts lift the brake caliper off of the rotor and then tie or secure to the side, being careful not to bend or kink the brake caliper flex hose. Thoroughly inspect brake caliper and brake hoses for leakage, cracks or chaffing and replace as needed. Next remove the brake pads (If not mounted in the caliper) and secondary caliper mounting bolts. Notice how great protective gloves work, most technicians use them on the job today.
Step 4: Remove Brake Pads
remove_brake_pads.jpg
Remove Front Brake Pads
Once the brake pads have been removed, make sure if there is anti rattle hardware to transfer to the new brake pads. Some brake pad manufacturers will include the proper lube (Caliper slides) and anti-rattle hardware to ensure proper performance of their product.
Step 5: Remove Caliper Mount
remove_brake_pads_holder.jpg
Remove Caliper Mount Bracket
Finish removing secondary caliper mount bolts and remove caliper mount. Note: clean and lube caliper slides and pad friction surfaces of all foreign material or build-up.
Step 6: Remove Brake Rotor
brake_rotor.jpg
Remove Brake Rotor
With the caliper mount out of the way you can now remove the brake rotor. Sometimes it can get stuck so you may need to tap it with a hammer or use penetrating oil to free it up. Some manufacturers use small screws to hold the rotor on as well. Clean and inspect wheel studs, replace if any are damaged. Also clean bearing hub rotor mount surface to ensure the proper mounting of the new brake rotor. Inspect the ABS sensor wheel for cracks or damage and replace as needed.
Step 7: Depressing the Brake Caliper
compress_caliper.jpg
Resetting Brake Caliper
To install the new brake pads you must retract the brake caliper piston. Remove the master cylinder lid or open the brake caliper bleeder screw to allow excess brake fluid to be released if necessary. Install C clamp tool and gently tighten clamp until caliper piston is fully depressed. Note: use old brake pad to protect the caliper piston. Close the bleeders once the piston is retracted completely
Step 8: Installing New Brake Rotor
new_brake_rotor.jpg
Install Brake Rotor
Install new brake rotor, the new rotor is manufactured with a protective film over the rotor to keep it from rusting, remove protective film with brake cleaner before installing; also after the brake job is complete you may experience a small amount of smoke from the rotor when first used. This is normal and will go away after the first couple of uses.
Step 9: Installing New Front Brake Pads
new_brake_pads.jpg
Installing New Brake Pads
Reinstall the front brake caliper mount, and then install front brake pads. Make sure the pads are seated properly in the caliper mount; it must be a close fit to work properly..
Step 10: Reinstall Front Brake Caliper
front_brake_rotor_pads.jpg
Re-Install front Bake Caliper
Reinstall front brake caliper and reinstall caliper-mounting bolts, recheck all mounts and mounting bolts. Check the caliper slides to be sure there is no bind and that the caliper moves freely back and forth on the caliper slides. Bleed brake system per manufacturer's specifications to relieve any air trapped in the system. Before driving the vehicle, push the brake pedal down and let it up slowly, repeat until normal brake pedal operation resumes, this operation is forcing the brake pads to travel to the brake rotors.

Dec 18, 2010 | 2006 Cadillac STS

1 Answer

My 05 envoy is making a winding sound for about 18 months. it gets louder the faster i go.no one can agree ..thx


Can you tell if it's the front/back? Wheel bearing could be going bad. Have you had the brakes checked, the caliper on one of the wheels may not be releasing completely, enough for you not to tell a difference in, but enough for the pads and rotor to slightly friction each other.

Jan 07, 2010 | 2005 GMC Envoy

3 Answers

One brake rotor gets very hot after 30 miles


on the wheel that is hot, jack it up and see it the wheel spins free or drags? if it drags, then loosen bleeder on the caliper, it if now spins free, you want to replace that caliper hose, if it is still dragging, then the caliper piston is stuck and you will need to replace it.

Sep 28, 2009 | GMC Sierra 1500 Cars & Trucks

3 Answers

Smells like brakes are burning


This sounds like a caliper hanging up and not releasing. Are you sure the calipers were replaced? I would take this back to the shop where it was done as you will quickly ruin the new pads and rotors if the calipers are not operating correctly.

Jul 19, 2009 | GMC C1500 Cars & Trucks

3 Answers

Hot front wheels


Replace brake hoses,they have an inner core that has ruptured and the outside rubber core is keeping pressure on the caliper with you foot off the brake. This will fix it! A common problem for this vehicle.

Apr 15, 2009 | 1991 GMC C1500

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