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Drives

Found 4 results

  1. Got an interesting one for the forum. After the truck (2016 GMC Sierra) has been sitting a while (usually over night or for a few hours) the pedal let's out a nice squeak. On rare occasions I can get it to do it twice in a row, but most of the time the squeak is only for the first press then is gone for all the other presses. Normal daily driving I don't hear it, it's only the first press or when I have to hit my brakes hard (ex, cut off by someone). My local dealer service department (who's treated me well and has good mechanics) looked at it and said they can't repeat it enough to truly diagnose it. Some squeaks are real quick and others last about 2 seconds. The only way I can describe it is like a relief valve letting some air out, but with a squeak. Sometimes I can hold the pedal in place after depressing and the squeak continues to let out. It's not like a metal plunger rubbing on a rubber boot as I depress the pedal, plus I would be able to make the sound every time if that were the case. Below is a video I took on two different occasions, they are looped a couple times. You'll hear what I'm talking about and see that it's gone on the second press. I did have the vacuum pump replaced due to the recall about a year ago, I noticed it after that but the dealership said the pump and vacuum is holding well the entire time, even when it squeaks. They only guess they had was to replace the brake pedal assembly or the brake booster, but admittedly said that would just be throwing parts at it. Just got the truck back today, didn't get charged for the diagnosis since they couldn't figure it out. Now I'm turning to the forum. Any idea what's going on?!?
  2. Well, here it is: N182202780 - Special Coverage Adjustment - Brake Assist Decreased Due to Vacuum Loss GLOBAL SAFETY FIELD INVESTIGATIONS DCS5013 URGENT - DISTRIBUTE IMMEDIATELY Date: April 10, 2019 Subject: N182202780 - Special Coverage Brake Assist Decreased due to Vacuum Loss Models: 2014 – 2017 Cadillac Escalade, Escalade ESV 2014 – 2017 Chevrolet Silverado, Suburban, Tahoe 2014 – 2017 GMC Sierra, Yukon, Yukon XL To: All General Motors Dealers General Motors is releasing Special Coverage N182202780 today. The total number of U.S. vehicles involved is approximately 3,357,584. Please see the attached bulletin for details. This special coverage covers the condition described above for a period of 6 years or 72,000 miles (116,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after April 10, 2019 for US, (April 11, 2019 for Canada), are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to April 10, 2019 for US, (April 11, 2019 for Canada), must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (“Customers”) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below.
  3. If anyone has this issue of lost brake pressure at idle or stop(low RPM) and or hard brake pedal. I had a feeling it was the brake booster pump. Took to local dealership. They verified that it was the problem. My 2017 Silverado is out of warranty(47k miles) and thought this was gonna cost me $$$. There is currently a special warranty on this problem due to crash risk. Luckily it will cover the entire parts and labor. I do not know at this time if there is a mileage limitation on this special warranty, but if you're in the same boat as me, go get it checked out!
  4. Hi Everyone, I have a 2014 Silverado V6 LS. Last week my AC went out for the second time. Truck has 44K miles so is out of warranty. The first time they replaced the defective hose issue I have read about. I have not diagnosed the latest problem yet but was planning on doing it this week. Then today, I was running errands and I heard a loud squeal and seconds later I had no assisted braking and had to really push down to stop. When I got home I looked in the engine and saw the belt had snapped. I purchased and installed a new one and fired up the truck. The squealing was loud and when I looked the vacuum pump was frozen and the belt was just spinning on it. I also noticed 3 days ago that the electronic thermostat number was stuck at 51 degrees most of the day even though we are in the mid 80's in Dallas. Either this truck is having a really bad week or there is a connection. Any ideas?
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