Q: The check engine light is on and my car sounds loud when it I crank it up. What could be the cause?The exhaust got fix but still l

asked by on

Whenever I crank my car up, it has this loud noise and when I press the gas, it gets louder. The check engine light is on. I took it to the car lot I got it from because it was smelling like gas and they fix the exhaust. What could it be?

My car has 148000 miles.
My car has an automatic transmission.

Hello, thank you for writing in. With the check engine light on, we need to start by scanning the vehicle for diagnostic codes to find out why that light is on. We can use the codes to help point us in the right direction for further testing. If you are smelling gas there may be a leak, or unburned fuel being sent into the exhaust. This would cause the catalytic converter to read high levels and would trigger a check engine light. However this is usually a spark or fuel system issue, rather than an exhaust issue. You should get a second opinion, or go back and utilize your warranty. To obtain an inspection from our technicians, contact our service department.

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. The check engine light is on and my car sounds loud when it I crank it up. What could be the cause?The exhaust got fix but still l

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: Q: oil pressure switch

The "apparent" oil pressure switch malfunction is not a cause of the stalling or misfiring. That malfunction with the switch has to be diagnosed and confirmed because sometimes there is nothing wrong with the switch itself but rather there is...

Q: Thumping noise while driving

Hello. It is possible that the noise you are hearing is caused by a bad wheel bearing. However, the wheel bearing noise usually sounds more like a roar. If it is a bad wheel bearing, the roaring noise will become...

Q: How do I fast-forward or reverse through an iPod song?

You can control your iPod with the sound system controls. To fast-forward through a song, press and hold the button with two arrows pointing to the right. To reverse through a song, press and hold the button with two arrows...

Related articles

P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.