2020 Chevrolet Equinox service brakes problems

“There were no warning lights prior. We were driving on the highway and the brake pedal all of a sudden became hard as a rock, and we could barely stop the car. Stoping distance was extremely long and dangerous, we were very lucky there was no one in front of us and that we were almost the the exit we needed to be at. Managed to slowly pull the car into a lot and arrnage for a tow to the nearest Chevrolet dealer (Open Road Chevrolet, Union NJ). They inspected it and said the vacuum pump was missing. Also said the notify the customer that tehre may be damage to the camshaft but they did not elaborate and they replaced the vacuum pump and verified their work and said no further repairs required at this time. Crazy dangerous situation to be in. Nothing warned us aboutt he issue at all. Just happened and we were very lucky.”

“Vacuum pump, I was driving 75mph and needed to slow down due to traffic and my break pedal was hard and wouldn’t stop me, I almost hit a car in front of me. I also had my children with me. No the problem hasn’t been inspected, I bought the part to repair it myself. There was no fair warning. I ALMOST wrecked with my children in the car! I was over a hour and half from my house.”

“While operating my vehicle, I experienced a sudden, catastrophic failure of the power-assisted braking system. The brake pedal completely lost hydraulic pressure, plunging effortlessly all the way to the floorboard. The vehicle failed to respond to normal foot-pedal application. Emergency stopping power was only achieved by pushing the pedal into the absolute floorboard, which engaged an emergency mechanical override and forced the Anti-lock Braking System (ABS) pump into a violent stutter/pulsation to halt the vehicle. No dashboard warning lights, diagnostic trouble codes (DTCs), or fluid level sensors illuminated prior to or during the braking failure. A certified automotive repair facility diagnosed the root cause as a total internal seizure and mechanical failure of the engine-driven brake booster vacuum pump. Because the vacuum pump is driven directly by the engine, its sudden lockup sheared and severely damaged the drive slots on the exhaust camshaft, necessitating an intensive engine teardown, camshaft replacement, and secondary component repair totaling $2,390. This design poses an extreme, life-threatening safety risk. The total loss of braking assist…”

“While driving, my 2020 Chevrolet Equinox suddenly lost power and shut off without warning while I was pulling into traffic. The vehicle would buzz not crank afterward but would not restart. This created a safety hazard because the unexpected engine shutdown occurred while the vehicle was in motion. This is the second brake vacuum pump failure I have experienced with this vehicle. In 2022, the brake vacuum pump failed and was found shattered internally. At that time, the engine continued running, and the pump was replaced. During this most recent incident, the brake vacuum pump failed again, and the internal end of the pump broke apart. I replaced the vacuum pump and removed the broken pieces I could access, but the vehicle remains in a crank/no-start condition. The vehicle has not yet been inspected by a dealership or independent repair facility. However, after seeing the shattered pump components, a couple of mechanics I know expressed concern that the broken pieces may have affected the engine timing. That has not been confirmed. The failed pump and replacement parts are available for inspection.”

“As I was coming to a stop at light my brakes became very difficult to push the pedal down to stop. It took everything in me to get the vehicle to stop before entering the intersection and oncoming traffic. I was able to get the vehicle parked safely in a nearby parking lot but then the engine wouldn't start it just kept trying to turn over. The brake assist error popped up, and then the check engine light came on. I was able to get it started again about 20 minutes later, all the same warnings and lights. I white knuckled the drive back to my house... Once I got home the engine was smoking, smelled like it was burning, and oil was spilling out all over the place underneath, impossible to see where a leak was as it was coming from the entire engine. There was ZERO warning with the vehicle, no issues up to this point, and suddenly the equinox is now useless in my driveway unable to start with oil still leaking in multiple spots. An oil pan under the main leaking area, but there are still multiple areas of oil spilling even a week later. Oddly enough my onstar report for the month came to email a few days later reporting perfect engine health and zero issues -…”

“The vacuum pump failed and my brakes went out pedal became extremely hard to push. I was driving on the highway at the time and was lucky I had a shoulder to slow down on and finally stop. I took the car to my usually mechanic who confirmed the vacuum pump failure but referred me to the Chevy dealer because this is a known issue. The dealer confirmed the pump had blown apart( their words to me) and that there are most likely debris now in the engine. No warning lights or alerts of any kind came on. Total suprise.”