Hi Scotty, I have 2005 Nissan Altima four cylinder with 235,000 miles. I have a service engine sign. I took to a local mechanic and they said the code was P0303 for spark plugs but I had just replaced all four spark plugs last year. I took it to Nissan and they said to replace Long Block and Gaskets due to mileage. I want to keep car for 2 more years is it better to get long black and gaskets replaced at a mechanic shop? Or should I start looking for a new car cause this will cost a lot even at independent mechanic shop?
The code is related misfiring issue and it has lots of reason for that. You got lots of miles out of the car and knowing the quality of Nissan, I think putting any money into that car makes no sense. Get rid of the car and buy a Toyota or Honda and you will get 400k out of those. Good luck.
Just trade it in, I would never buy a Nissan.....
Look at the Mazda CX-5 incredible vehicle......
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