Rough idle - 2001 Altima

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Rough idle - 2001 Altima

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Rough idle - 2001 Altima - 5/14/2007 9:58:24 AM

Umpire727

Posts: 4
Joined: 5/14/2007
Status: offline

My Altima is experiencing a rough idle when at stop. The CEL came on about a week ago and the code stated a Cylinder 4 misfire. I've change the spark plugs, fuel filter, and cleaned out the throttle body, combustion chamber and intake manifold.

The car feels like it is going to stall with the RPMs jumping, but at soon as I give it a little gas or turn the AC on high, the RPMs level out.

Any ideas? I would hate to take the car someone and get ripped off if it is something that can be done at home.

Thanks

Post #: 1

RE: Rough idle - 2001 Altima - 5/14/2007 6:03:38 PM

pdbrains

Posts: 2
Joined: 5/14/2007
Status: offline

My Altima does a similar thing. At a stop, after idling ok for about 30 seconds the idle turns rough and the rpms drop. The CEl will come on and then go off after a while. Got a code PO300, random multiple misfires and cod PO102, airflow sensor error- low air flow. It's going back to the dealer for repair. When I find out what they fixed I will let you know.

(in reply to Umpire727)

Post #: 2

RE: Rough idle - 2001 Altima - 5/15/2007 5:57:49 AM

Burnnout

Posts: 664
Joined: 11/24/2006
Status: offline

Umpire727 ... I would guess Throttle Position Sensor.......pdbrains... I would say Mass Air Flow Sensor.

(in reply to pdbrains)

Post #: 3

RE: Rough idle - 2001 Altima - 5/15/2007 6:57:01 AM

Umpire727

Posts: 4
Joined: 5/14/2007
Status: offline

Sounds good! I'm going to see what codes pop up for mine today.

Thanks.

(in reply to pdbrains)

Post #: 4

RE: Rough idle - 2001 Altima - 5/15/2007 6:57:59 AM

Umpire727

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Joined: 5/14/2007
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Burnnout - Is this an easily fixable problem?

(in reply to Burnnout)

Post #: 5

RE: Rough idle - 2001 Altima - 5/15/2007 6:58:24 AM

Umpire727

Posts: 4
Joined: 5/14/2007
Status: offline

Burnnout - Is this an easily fixable problem?

(in reply to Burnnout)

Post #: 6

RE: Rough idle - 2001 Altima - 5/18/2007 12:08:40 PM

p0rt0_24

Posts: 53
Joined: 4/26/2007
Status: offline

i had the same problem and i just replace the distributor and the wires and the car appreciated it ;).

(in reply to Umpire727)

Post #: 7

RE: Rough idle - 2001 Altima - 5/21/2007 6:52:04 AM

Burnnout

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Joined: 11/24/2006
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Honestly... I would take the car to the dealer and have them diag. it..... could save you money in the long run.

(in reply to p0rt0_24)

Post #: 8

RE: Rough idle - 2001 Altima - 6/7/2007 7:41:20 PM

deb3360

Posts: 1
Joined: 6/7/2007
Status: offline

it could possibly be the intake manifold gasket, check the intake near #4 cylinder see if you hear a vacuum leak in that area or you could possibly see part of the gasket blown out

(in reply to Umpire727)

Post #: 9

RE: Rough idle - 2001 Altima - 6/8/2007 6:36:43 PM

p0rt0_24

Posts: 53
Joined: 4/26/2007
Status: offline

i brought my car to the dealer he did like i said on my previous message.

(in reply to deb3360)

Post #: 10