Sudden Loss of Acceleration Identifying and Resolving the Cause

There are several reasons why your car is having trouble accelerating. Some of them may be simple enough to troubleshoot by yourself. Chances are you just have a bad brake pedal switch. The TCM monitors the brake lamps and won't let the car accelerate if they're lit. The ... Yep they screwed it up. If you took it to the dealer then take it back as the repairs should be covered by the shop. If you took it to an ... How do you fix a car that won't accelerate? · Install a Throttle Response Controller · Get a professional Tune ($500 to $1200) · Mass Air Flow ... Why Is My Car Not Accelerating Properly? · 1. Dirty Mass Air Flow Sensor (MAF) or Oxygen Sensor. Your dirty mass airflow sensor or oxygen sensor can both ... Checking Your Mass Air Flow Sensor and Oxygen Sensor · Addressing a Malfunctioning Throttle Position Sensor · Changing a Clogged Fuel Filter · Changing a Dirty Air ... It won't accelerate more then 1000-1200 RPM. If I drive it will move with like 10 Mph. Pressing the acceleration pedal up and down and the engine will suddenly ... A failing fuel pump can result in insufficient fuel reaching the engine, causing sluggish acceleration. Under hard acceleration from 20mph or so, the car just kinda stalls out and won't down shift or really accelerate. The tach kinda hovers around 3000-3500. Other potential issues might include a blocked fuel filter, a clogged air filter, or a malfunctioning throttle body valve, all of which could ...