Are you in the market for a new or used vehicle and having difficulty finding something in your budget? Or are you finding yourself making trade-offs to find something you can afford (i.e. less cargo space, lower trim level). A reporter from a national news publication would like to speak with you about your experience; please reach out to PR@Edmunds.com by this Friday, 11/21 for details.

Nissan Maxima rough idle

alexj96alexj96 Member Posts: 3
edited September 2014 in Nissan
I have a rough idle when in park and when I put it in gear it gets worse I changed my spark plugs I replaced a broken ignition coil and checked my maf. what could it be?
Tagged:

Comments

  • Mr_ShiftrightMr_Shiftright Member Posts: 64,481
    have you checked for a vacuum leak somewhere? On a car this old, vacuum lines can crack and/or come loose.

    Your idle speed can actually be adjusted on this car.

    Also the Idle Air Control Valve is suspect, as is the EGR system

    Perhaps a computer scan (onboard diagnostic test) would give you some hints as to where to look next.
  • alexj96alexj96 Member Posts: 3
    well my check engine light is on for a knock sensor, egr, and 4th gear I messed with the idle screw on the iac slightly it didn't really do much so I put it back where it was, all the vacuum line appear to be good
  • Mr_ShiftrightMr_Shiftright Member Posts: 64,481
    Well a plugged EGR will certainly screw up the idle speed.
  • alexj96alexj96 Member Posts: 3
    do you think I need a new one or just to clean the one on it? how hard is it to remove?
Sign In or Register to comment.

Helpful Tools

Most popular vehicles

Your Privacy

By accessing this website, you acknowledge that Edmunds and its third party business partners may use cookies, pixels, and similar technologies to collect information about you and your interactions with the website as described in our Privacy Statement, and you agree that your use of the website is subject to our Visitor Agreement.