Car Not Accelerating After Oil Change. A defective fuel pump will not supply enough fuel to the injectors. A loose oil cap can spew oil during operation, which will eventually reach the exhaust system.
A loose oil filter will drip or spray under pressure, also the drain plug. After draining around ½ quart of oil, the car restarted.
How To Check Your Fuel Pump Pumps Fuel Slip On Sneaker
After getting an oil change done the oil cap was left off by my mechanic, i drove the car for approximately 40 miles on a hot. After the change, i found i cannot step on the gas pedal too hard for acceleration.