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Found 6 results

  1. https://www.whec.com/news/gm-under-investigation-for-faulty-brake-vacuum-pumps/5154566/?cat=565 "The U.S. government is investigating more than 100 complaints of poor brake performance on 2.7 million General Motors big pickups and SUVs." Hold your receipts if you have done any work, hopefully a recall comes out of this. I also think reporting your issues to the NHTSA may get this rolling out faster.
  2. Hey guys, I got a 2015 Silverado 5.3l. 138,250km. started ticking sometime last winter. Would happen instantly at start up and last about 5 minutes then would fade away. Sounded like a lifter. Took it to the dealer they said they couldn't hear it. Sound went away so left it. Fast forward to this winter and as Soon as the weather started to cool down I noticed the ticking again. Took it back to the dealer said they couldn't hear it again. I went and picked up my truck right at closing, soon as I fired her up the sound was there but everyone was gone so no one to hear it. I took a
  3. So I have had my truck into Dealer on multiple occasions for what sounded like a lifter tick. This ticking noise was loudest in the morning first thing when starting engine. With the hood open it sounds like a lifter sticking and coming from under valve cover. You also can hear it through the drivers side wheel opening. Since the dealer has recently replaced all lifters I decided to go ahead and replace the vacuum pump. I purchased one from Amazon for $128.83 and a Lisle Stretch belt tool 59370 for $15.00. ACDelco 12669488 GM Original Equipment Vacuum Pump and Lisle 59370 Stretch Belt Too
  4. I'm doing my best to isolate this ticking sound that is persistent, yet intermittent. Data so far: 2018 CC SLT 1500 6.2L 4WD Max Tow 19K miles, all stock Doesn't happen when motor is cold, much more prevalent when motor is warmed Doesn't happen when letting off throttle (only under application of throttle), can be heard in neutral, park, and in drive (not in reverse enough to tell--but it happens when transmission is not engaged) Sound follows steady or increasing RPM of motor Under light to medium load, noise is prevalent, under heavy acceleration
  5. Receive a notice letter from GM yesterday on failing vacuum pumps causing low speed hard brake pedal that could cause a problem in low speed braking. Their only offer in the letter is they will extend the warranty on them for 6 years from in service date the of truck or 72,000 miles in the interest of "customer satisfaction". NO recall however. They said for make sure and follow oil change intervals for this might be a contributing factor in the pumps premature failing. My thoughts on this is they should recall known safety issue parts period. Looks like GM is trying to save themselves some mo
  6. For the last 5,000 miles or so, I have noticed a (louder than normal) ticking noise coming from my engine bay. Recently. while navigating a parking garage at the airport, I lost all brake boost vacuum and almost hit a column. I did some research and found all of the info online relating to the NHTSA investigation etc. I went to my local dealership. They wanted $900 to replace the vacuum pump. It broke out as $615 in labor and $285 in parts. After looking around online, I couldn’t find a detailed write-up or video on this repair. I put together a write-up for anyone else who might w
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