Slight hiccup while idling

General discussion area for the L32-chassis Altima
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Primodlt
Posts: 83
Joined: Wed Dec 02, 2020 8:42 pm
Car: 2011 Nissan Altima SL 2.5

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2011 Altima! This morning drove to work. Vehicle drove good. When stopped at a light, car had a bit of a rough idle. It idles fine at about 900rpm then all of a sudden rpm drop a bit and it accelerates back up to 900-1000rpm. It does this intermittently. No codes habe came up. What can be the problem???

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VStar650CL
Technical Expert
Posts: 12108
Joined: Thu Nov 12, 2020 1:25 pm
Car: 2013 Nissan Altima 2.5 SL
2004 Nissan Altima 2.5 S

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Something's wrong to start with if it's idling at 900~1000. Idle RPM on the 2.5's should be around 650~700. Vacuum leak maybe?
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