Car Accelerated and Brake and Accelerated Again
Q: Later on releasing gas pedal, motorcar continues to accelerate
On a four-lane highway, I was in the right lane and moved into the left lane, accelerating under full throttle to pass a machine. After passing it, I moved back to the right lane and when I released the gas pedal, the machine kept going - it just kept accelerating! I pressed and depressed the full range of the pedal to brand certain that it was free to operate, simply that didn't make any change. At wide open throttle, it was stuck. As hard every bit I could, I then put total pressure level on the brake to endeavour to slow the car down as it was standing to advance. I could tell brake failure was imminent considering they were getting hot. I shifted the transmission selector upward to Neutral. After the engine momentarily overran to the rev limiter, information technology then settled to 4000 rpm. While information technology was in Neutral, I continued to press on the brakes to end. It did stop and after 30 seconds the engine slowed to a normal level of idle. The throttle seemed to reply normally. After shifting to Drive, I headed to the dealership. Around 30 seconds after starting to the dealership, the "grade braking on" appeared and then went off. Information technology was a apartment route and I was going 20 mph and not pressing on the brake pedal. The tow/haul mode was non on. Before I agree to what the dealership finds, would you please diagnose all of this and give me your communication? Thanks.
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Evan Clay
Automotive Mechanic
16 years of experience
Hey in that location. From your description, it sounds similar the throttle body became stuck. Since this vehicle does not take a throttle cablevision, information technology is possible that a sensor malfunctioned and caused the throttle to stay on. These vehicles have been known to suspension the gears within the throttle trunk and cause the symptoms you described. Information technology is possible that the throttle body may need to be cleaned or replaced. Also, in the future, if the throttle sticks, the best class of action is to merely turn the ignition off. Don't turn it all the mode back, because that would lock the steering wheel. Merely turn it back one position to the accessory position. If you would like to have a professional exterior of the dealership inspect the stuck throttle, a certified technician from YourMechanic tin can come to your car's location to requite your Chevy a look.
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