Q: Car stuttering, trouble accelerating, check engine light flashing. Gasoline smell coming from exhaust.

asked by on

Was driving and the car suddenly started stuttering and the check engine started flashing. It wouldn't really accelerate. I pulled over as quickly as possible. There was a distinct gasoline smell coming from the exhaust. The temperature gauge was normal. I checked coolant and oil. Coolant was fine, but oil was low (just a tiny bit on the end of the dip stick.)

My car has 160000 miles.
My car has an automatic transmission.

What you are describing sounds like a dirty or faulty mass air flow sensor. The mass air flow sensor monitors air intake as it is mixed with fuel prior to being injected into the motor. This sensor relays vital information to the ECM which uses this to make adjustments to fuel supply to the motor. A dirty or faulty sensor can cause an imbalanced air/fuel load to be supplied to the motor which results in an over fueling or under fueling situation depending on the conditions. This type of inconsistent fuel supply to the motor may cause a hesitation, loss of power, a jerking reaction, potentially a bit of black exhaust smoke and typically a strong smell of fuel when this sensor is malfunctioning. I would suggest having a professional from Your Mechanic come to your home to diagnose and inspect your vehicle.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car stuttering, trouble accelerating, check engine light flashing. Gasoline smell coming from exhaust.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car occasionally won't start. Is it the starter?

Hello. If the alternator is working and the battery is new, as you say, then the mechanic may be right. The starter itself may not be dead so much as it would be that the solenoid is sticking. When that...

Q: 2 siuations: #1 Engine stutters at 3k rpm. #2 Car can barely accelerate and stutters when it does. VSA + Checkengine light flashin

The causes of the misfiring have to be determined and resolved first. If poor operation remains after the misfiring is resolved, then there might be additional issues. If you are reading Diagnostic Trouble Code P0301 that refers to cylinder no....

Q: How to fix evaporator case? 2000 GMC 2500

Hello - short is "no" - this is a hard one. This repair involve disassembly of the dash and associated components, removal and repair/replacement of the evaporator case, and re-assembly of the dash. There are step-by-step instructions on some of...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...