Hi there. In many cases, when you have an issue with the car accelerating and the check engine light comes on, it’s caused by a mechanical problem with either a drive-system, fuel or ignition system component. The light is triggered when a sensor detects a fault somewhere in the car. It can be as minor as a fuel injector that is dirty ranging If one or more of the spark plugs is damaged, your engine will struggle to burn enough fuel and the vehicle will jerk as it tries to accelerate. [2] X Research source. Other symptoms include: Check engine light, extremely slow acceleration, bad fuel economy, and loud knocking sounds coming from the engine. The clogged catalytic converter could cause the car jerks when accelerating. If the catalytic converter is dirty and not working efficiently, try to use the catalytic converter cleaners. Otherwise, you need to change your catalytic converter or have your car serviced. 10. Faulty Mass Airflow Sensor. My 1996 Mercedes C280 will occassionally lose acceleration, pick back up, and lose it again 8 Answers. Unfortunately, my mechanic cannot reproduce the problem. I will be driving at normal speed. I stop for a stop sign or light, and when I accelerate it tops out at maybe 20 mph and then slows down t There are many reasons your vehicle’s engine might lose power. An engine needs air, compression, spark and fuel to run. Each one of those elements has associated parts that need to function properly to get you moving. If any of these systems fail, it can show up as a loss of performance and lead to a cascading effect that can create worse Shop/Dealer Price. $112.52 - $125.67. Show example Mercedes-Benz GLK350 Engine hesitates during acceleration Inspection prices. It can be frustrating for any driver to expect certain acceleration from their vehicle only to find that the vehicle seems to be hesitant while speeding up. This hesitation could be potentially dangerous in situations GeJvtl. 1. You Drive a Stick Shift Car. This isn’t a problem, just an effect of driving a stick shift vehicle. If you’re still learning, you might be going through some jerking as you shift through each gear. However, it’s common in manual transmission, so as you get used to the controls, you’ll have a smoother ride. 2. 75 posts · Joined 2013. #1 · Oct 24, 2021. Hello folks; My 2012 Focus SE with 122000 miles recently started to act weird as sometimes when i go uphill or when i try to accelerate from a low speed, i can feel the engine hesitating and jerking as if it's cannot gain power to go. No check engine light or any other issues.. P0700 is a common code if it’s an electrical issue related to the transmission. If something has gone wrong in the transmission, your Silverado may not be able to accelerate anymore, or it’ll. If it can no longer shift, it could be caused by a solenoid/valve body that has gone bad, clutch packs, debris, and much more. Same for your fuel filter. If your filter isn't letting enough fuel pass through, your engine isn't going to accelerate the way you need. Trouble starting your engine is another indicator that your fuel filter is clogged. If you've got a full tank of diesel and your engine won't start, there's a good chance your filter may need changing. Mercedes Mechanic: Lou Palomino, Mercedes Technician replied 8 years ago That is really abnormal. There is a second or two lag when mashing on the pedal due to the fly by wire system but it should not take longer than two seconds whether at idle or driving. 10 seconds is extreme and should be checked with a scanner to see what values are The most common reason why a car is shaking or vibrating when accelerating is due to unbalanced wheels or a worn CV joint. It can also be a damaged driveshaft, but it could also be caused by engine issues like a misfiring engine. Here is a more detailed list of the most common reasons why a car shakes when accelerating. 1. Wheels Out of Balance.

mercedes no power when accelerate