2017 Chevrolet Malibu vehicle speed control problems

“The Reduce Power to Engine keeps happening. It shuts my car down and lights up the traction control light, check engine light and its a serious hazard because I travel highway to and from work and its very dangerous when you loose power to your vehicle at high rates of speed. Also my emissions is bad due to a supposed fixed recall for the catalytic converter.”

“While driving at highway speeds, my vehicle suddenly experienced a loss of engine power and reduced acceleration. The traction control light and engine light illuminated, and a “Reduced Engine Power” message appeared. The vehicle would not respond to the accelerator, creating a serious safety hazard. This occurred shortly after authorized dealer service involving the PCV system and related components. The vehicle did not have this issue prior to dealer service. I returned the vehicle to the dealer, and they stated they could not replicate the issue. The sudden loss of power could have resulted in a serious accident. I believe this may be related to improper dealer service, disturbed electrical connectors, or throttle body/engine management components. I am reporting this as a safety concern. I also would like to mention this safety issue has occurred now multiple times with my car on multiple separate occasions with the last prior occurrence being 12/20/2025.”

“The car smells strongly of gas. And has a problem accelerating. Check engine light came on and I got a code p1101 which is a code for the MAF SENSOR. This is not the first time that this has happened. It happened less than a year ago maybe 9-10 months ago. I don’t drive the car in fear of it catching a fire. The car has stalled before in the middle of a turn. I had to turn the car off and turn it back on. I called onstar who have no idea what was wrong with it.”

“The transmission stalls to get up and go after it has been driven for a short while causing it to slow down traffic and causing a slight risk trying to pull over to the side to allow drivers behind pass by. Once the driver stops at more than 5 stops is when the vehicle begins to hesitate to work properly.”

“I was driving my car on the highway doing 65 mph when all of a sudden my car started rapidly jerking losing the power to accelerate and entering “limp mode“ there was multiple cars behind me when my car lost the power to accelerate. I was in the far left lane and couldn’t even go higher than 7 miles an hour and had to cross across three lanes at 7 mph on a 65mph highway to pull over. I had my children in the car and almost caused a huge accident dude to this issue. The issue in hand is the vacuum pump. It completely shattered in my engine, causing severe engine damage. And it caused my brake pedal to become hard as a rock. I couldn’t break without using my emergency break. I had no brake power at all. My car had to be towed.”

“I was driving in my neighborhood I tried to park at my house and my car wouldn’t stop I had to step down on my break hard for it to finally stop my vacuum pump broke into pieces and made my timing chain break”