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Problems with 2005 GMC Sierra 2500HD SERVICE BRAKES, HYDRAULIC

On average, the 2005 GMC Sierra 2500HD starts to “feel” problems with the SERVICE BRAKES, HYDRAULIC and its various aspects after 35 955 miles.

Components Affected by SERVICE BRAKES, HYDRAULIC Issues

We have classified the 8 complaints from 2005 GMC Sierra 2500HD about SERVICE BRAKES, HYDRAULIC into the following categories.

ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP 2 POWER ASSIST 1

Recently reported SERVICE BRAKES, HYDRAULIC problems on 2005 GMC Sierra 2500HD

Tl* the contact owns a 2005 gmc sierra 3500hd. the contact stated while at a complete stop with the brake pedal engaged, the vehicle began to lunge forward; followed by the illumination of the abs warning light and a chime sounding inside the vehicle intermittently. the vehicle was taken to an authorized dealer who stated both front brake hubs and sensors would need to be replaced; however the parts were not included in the extended service warranty. the vehicle was not repaired and the manufacturer was made aware of the defect. the approximate failure mileage was 40,000. updated 9/13/11 *cn the consumer stated the abs light chimed. udpated 01/03/12

2005 gmc sierra k2500 pickup truck. problem - brakes fade when coming to a complete stop. brakes work fine until vehicle slows to 5-10mph at which time brake pedal loses pressure - unexpectedly increases stopping distance by 10-15 feet creating hazardous condition. attempted resolution - replaced all four brake rotors and pads at own expense. problem still exists. went to dealerand discovered that this is apparently a common problem related to the anti-lock brake sensors located in each wheel assembly. they claim this braking system failure is due to normal wear and tear and not a manufacturers defect or faulty design... my problem is this - if the dealer (and, by extension, the manufacturer) knows that the brake system is going to start failing after a few years of operation, then how is this due to normal wear and tear and not a design defect??? this is clearly an example of a manufacturer putting out a product that they know will fail in time and, thus, create a hazardous safety condition. *tr

Tl*the contact owns a 2005 gmc sierra 2500hd. the contact stated tht the vehicle lunged ten feet when he depressed the brake pedal upon coming to a stop sign. extra effort was required to stop which increased the stopping distance. the abs fuse was removed based on advice by a mechanic. after removal of the fuse, the problem stopped; when the fuse was reinstalled, the problem returned. the vehicle was tkane to an authorized dealership who informed him that the brakes were functioning normally. the vin was unavailable at the time of the complaint.

Tl*the contact owns a 2005 gmc sierra 2500 hd. the brake pedal had to be extended to the floor in order to stop the vehicle. the vehicle has not been diagnosed by the dealer. the contact also noticed that they would gradually need more braking distance before coming to a complete stop. the current and failure mileages were 39391.

The hydraulic brake booster's pressure accumulator cracked and /or separated from the hydro-boost assembly during normal vehicle operating conditions. the presence of this crack or fractured surface allowed the hydraulic fluid to leak from the accumulator circuit of the booster assembly. the loss of fluid caused increased steering and braking effort. *tr

Brake pedal 'sinks' a bit toward floor, on slow stops, just before car comes to a stop. occurs on almost every stop, brakes inspected and discs and pads are okay. *tr

I own a 2005 gmc sierra 2500hd. i am having the same abs problems in campaign # 05v379000. as i come to a stop the abs system kicks in and increases my stopping distance. *tr

Truck has been in dealer numerous times for severe noise of power steering pump, loss of brake boost and steering assist at low speeds. pump was replaced and noised disappeared for just over 2 weeks and started again. dealer explained that gm is aware of problem, but is only taking calls about the problem from one area code while they try to isolate. dealer then replaced the steering gear with no correction of problem. at a standstill, turning the steering wheel about 3/4 turn results in complete loss of steering assist and sometimes brake boost, plus excessive pump noise. dealer is now trying to tell me this is normal. there is a technical bulletin on this problem. gm has instructed dealers not to replace the power steering pump. as they have received too many pumps under warranty that appear to have no problem. driving the vehicle at 1200 rpm and steering right or left will generate a groaning noise that drowns conversation in the cab and at times results in reduced or failed brake boost. the same loud groaning noise occurs when slowing the vehicle from highway speeds without any turning of the steering wheel, as the engine rpm falls through the 1200 rpm range. sounds like a hydraulic system with air in the system, low fluid or being push to over-capacity. gm is not being responsive to the excessive number of customer complaints. i know others with the same problem on several years of 2500hd duramax trucks. it is not at all difficult to find others with this exact same complaint. the noise appears to be an under capacity hydraulic system for power steering and brake boost. gm is either ignoring the problem or hoping the problem trucks will expire warranty. more owners need to complain and force a recall to repair this defect in design. contrary to my dealer's assertion, this is not normal. i have been driving long enough to know "normal" and a "problem dodge" when i see it.

Tl* the contact owns a 2003 gmc sierra 2500 hd. the contact stated that the power steering would seize and the vehicle would hesitate to stop when the brakes were depressed. in addition, the transmission, windshield wipers, cruise control, and the instrument cluster failed. the vehicle was taken to the dealer who replaced the transmission, but the failure recurred. the manufacturer was notified of the failures, but denied any assistance with repairs to the vehicle. the vehicle was not further repaired. the failure mileage was 29 and the current mileage was 100,000.

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