Question about 2003 Nissan Maxima

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I have a 2003 nissan maxima v6... how do I check if my muffler is clog or converter the car starts and run for a couple of mins but I try to give it gas but my rpms dont go over 2000? It only picks up speed to about 45 mph? I cant take it to far so I cant take it to check the engine check light....

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You only have to go to the nearest place to have the fault codes read. converters cab break up and block the exhaust but this is after high rpms and constant high speed driving and exhaust mufflers very seldom block up. The restricted rpms indicate that the engine /transmission is in protected mode and that will be revealed by the fault codes obtained from the reading.

Posted on Dec 12, 2014

  • steven brown Dec 12, 2014

    Ok just wondering a friend told me it sound like I get back pressure because when u take it up to them rpms there's popping noise he said that's back pressure? But leave an hour an half away from the nearest AutoZone. I had to put it on a flat bed to get it home.

  • Bill Boyd Dec 12, 2014

    the noise that you state is more like misfiring and not back pressure as back pressure noise is more like air pressure escaping. A popping noise is combustion or no combustion at the wrong time. as I suggested take it to have the codes read first and that will eliminate guesswork.



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