Q: My check engine light came on and my car was diagnosed as needing a catalytic converter. Now, my car won't start.

asked by on

Since my car won't start, can the issue of needing a new catalytic converter be the only problem?

My car has 270000 miles.
My car has an automatic transmission.

Hello, thank you for writing in. The catalytic converter can cause a vehicle not to start. This would be an extreme situation where part of the catalyst inside has broken off and is clogging the entire exhaust pipe. Tap on the catalytic converter just hard enough to loosen anything that may be logged in. You do not want to do any more damage. Now if the vehicle is not cranking (as in the starter is not turning) then your issue is not related to the catalytic converter. If you already know this is an issue, start by replacing it first and take further diagnosis from there. For more diagnostic help, or to have the catalytic converter replaced, contact our service department to schedule an appointment.

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 check engine light came on and my car was diagnosed as needing a catalytic converter. Now, my car won't start.

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 won't start, but it still has stereo on

Hello. If the stereo is on then the vehicle should have some power but the battery should still be load tested. It is common for the battery to have just enough power to provide some power but not enough to...

Q: Q: Loss of power while driving

Hello! There are a few components that will cause a lack of power. The leading one being that the transmission fluid may need exchanging. However, power loss may also come from a lack of fuel, air, or incorrect ignition timing....

Q: Need to know where to place the jack.

Hi there. Look under the vehicle along the body. You will see a pinch weld on the vehicle. This is the location where the jack is to go to lift up the vehicle. The suspension will drop a lot, so...

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 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...
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...