Q: Rattling, loss of power, smells of rotten eggs, dash lights on

asked by on

Hi. I need some advice on what to do with my car. The dashboard shows warning lights on. There is a very bad smell to it, like rotten eggs. When I drive, it seems to lose power. The car also rattles. What should I check first? Thanks.

The first thing to check is the Check Engine Light to see why it is on. The smell of rotten eggs is an indication that the catalyst is bad and the rattle may be that the catalyst is broken up inside. The codes need to be diagnose and repaired before the catalyst is fixed, since it may of gotten damaged by the engine running condition. I recommend having a certified mechanic, such as one from YourMechanic come to your house or office to inspect the codes for your Check Engine Light, before any repairs are attempted.

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. Rattling, loss of power, smells of rotten eggs, dash lights on

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: Ticking and rattling after parts were replaced

It sounds to me like the valve timing is now incorrect. The pin that you are referring to might be an alignment pin of some kind. If the valve timing is not correct, this can cause the valves to tick...

Q: Q: Car window won't roll up or down

If the window can't be operated from either the master switch (on the driver side) or its own switch, chances are the motor has failed and needs replacement. I would suggest having the whole power window system tested by a...

Q: My car is overheating and keeps leaking antifreeze /coolant and my heat is not working in my car it’s blowing out cold air

The lack of heat being generated by your system may indicate a clogged or leaking heater core. The heater core is a small radiator like unit that circulates the hot coolant from the engine through the heater core which then...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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.