Q: Exhaust emission light on

asked by on October 02, 2016

So last night while driving there was a drop in power that I could feel, I drove it home slowly, in the morning it was fine, but started it up now and there was something wrong with how the engine was running and now the exhaust emission light is on, turned it off and back on and it's fine now but light is still on, there is a slight noise at the bottom of my revs a bit above idol. Any ideas?

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

What does the Low Tire Pressure light mean?
Your car can keep track of the amount of air pressure in each tire. When the pressure drops below a certain amount, the car’s computer will turn on the Low Tire Pressure light in the dash. That’s your signal to...
Grinding noise when putting vehicle into gear, plus no acceleration.
Several things could be causing this issue including internal differential failure, axle failure, or transmission failure. The differential is unlikely since the vehicle will still accelerate to 25 mph. An axle however could have slid out of place due to...
How do I adjust the autolamp delay?
The autolamp delay is the amount of time that your lights stay on after exiting your vehicle. This delay can be adjusted with just a few steps: 1. Press the Up/Down buttons on the steering wheel until Settings is displayed...
Car burns gas excessively
Hello. It sounds like there may be a leak in your gas tank. That may explain why, when applying the brakes, the gas levels drop down. I would suggest having a certified technician, like one from YourMechanic, inspect the fuel...
Green liquid everywhere
If the coolant is low in the engine and you see a leak near the rear of the engine then the heater core may have broke. You would need to have this verified by having the system pressure tested. In...
Rattling and screeching noise
Hello. The A/C compressor clutch and pulley should be checked and you should replace the pulley only if the compressor is not leaking. If it is, then replace the complete compressor assembly (https://www.yourmechanic.com/services/ac-compressor-replacement). If you would like to have this...
Bad ignition switch or main relay?
Many of the 1998 Accords were recalled by Honda for ignition switch and interlock defects. In your circumstance, the first thing to do is confirm whether applicable recalls affecting your vehicle were in fact completed, by you or any prior...
Used x5 2010 x5 35d common problems ?
Hello, thank you for writing in. Our technicians are mobile, and they come to you. This is one way that we save overheads costs and pass that savings into you! Secondly, always get a pre-purchase inspection done by a qualified...
I purchased a new 2017 Buick Lacrosse Essence which does not have heated steering wheel. I would like to have this option instal
The heated steering wheel on this model incorporates the control module and just replacing the steering wheel and putting a fuse in the heated steering socket in the underhood fuse box should complete install. The only thing I am not...

Related articles

Does the Exhaust System Reduce Harmful Pollutants?
Because Because your car’s engine operates on combustion (burning gasoline), it creates fumes. Those fumes must be removed from the engine so they don’t smother combustion, and must be vented as far from the doors and windows as possible because...
Symptoms of a Bad or Failing Exhaust Air Supply Tube
Common signs include exhaust leaks, engine performance issues like a reduction in power and acceleration, and increased emissions.
How Long Does an Exhaust Manifold Gasket Last?
Your Your exhaust manifold requires a seal between the cylinder head and the exhaust manifold. This seal is called the exhaust manifold gasket, and is an incredibly hard-working part. The exhaust manifold is where all the engine cylinders’ burned gasses...