2003 Nissan Altima


2003 Nissan Altima Mechanic's Assistant: Are you fixing your Altima yourself? What have you tried so far? It was my foster dad we have replaced the [spark plugs](/topics-spark-plug-nissan/) we really don’t know what is wr...

2003 Nissan Altima Mechanic's Assistant: Are you fixing your Altima yourself? What have you tried so far? It was my foster dad we have replaced the [spark plugs](/topics-spark-plug-nissan/) we really don’t know what is wrong Mechanic's Assistant: How many miles are on the Nissan? When was the last time the plugs were changed? 229841 miles and I don’t know honestly Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? It was having misfires and it is saying that I have a po420 code on it

Automotive Expert
**Bradley Jordan** **Nissan, Subaru, and Infiniti Master Technician** **ASE Master Tech All Makes** **Let me take a moment to review your request.** **_You may be prompted for a phone call, this is optional as the request is automatic._** Most of the time a misfire on that model is a bad coil on the spark plugs. But with the P0420 code which is a catalytic converter failure, you are going to need to remove the exhaust manifold and check for the convertor for coming apart. On this model, if the convertor comes apart it can suck debris into the engine and cause engine failure.

Ok thank you
Automotive Expert
you are most welcome, sorry for the delay had to restart my computer. **If you need more help, just follow up with your question and I can give you more information.** **it was my pleasure to help you today, exceptional service is my goal and I hope I provided** **Exceptional service for you today. Good luck with your repairs and have a wonderful day** **Thankyou** **Bradley**

It is all good I understand
Automotive Expert
no problem

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