Q: My car won't start. I looked under the car and the catalytic converter was smoking.

asked by on

check engine light came on all of a sudden the it was putt putt i shut it off then tried to start it again and didnt start looked under my car and the converter was smoking....it is rusted there do i need a new converter?
My car has an automatic transmission.

Hello. The first task is to determine what problem codes there are since the Check Engine Light is on. Quite possibly, something has caused a "way too rich" fuel mixture, making the engine choke down and clogging the catalytic converter. You definitely want to resolve the problem before getting the catalytic converter hot with fuel in it - a fire will result.

I would recommend having a certified mechanic, such as one from YourMechanic, come to your location to determine why the car is not starting and suggest the needed repairs.

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. My car won't start. I looked under the car and the catalytic converter was smoking.

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: wiring diagram for the 87 pigtails to the cluster to configure the wireless to work

My best recommendation for finding this information would be to purchase a factory service manual from General Motors for that particular vehicle. This service manual should have any and all wiring diagrams associated with that vehicle. Otherwise, you could try...

Q: Catalyst system Efficiency - P0420 - 2010 Ford Fusion.

Hello and thank you for contacting Your Mechanic. For the code P0420 to come on, there could be a lot of issues that could arise to a non functioning catalytic converter. Before you decide to replace the catalytic converter, consider...

Q: I just got done rebuilding my 318 and it won't start.

In order to diagnose this problem you should bring cylinder number one up on its compression stroke and then the crankshaft on top dead center. Remove the distributor cap and make sure the rotor is pointing to number one cylinder....

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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.