Question about 2005 Nissan Altima

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Does a 2003 altima have a problem with the idle air control valve

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Posted on Jan 02, 2017

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SOURCE: idle air control valve needs replacing

If it is the IAC then buy one. once you know exactly what it looks like then it should be easy to see it connected to your throttle body. Look at the new one to find out where potential bolt holes are and now you know where they are on the car as well. If the check engine light is still on after you replace it try disconnecting your battery cables for a few minutes and it should reset your computer and turn the light off.

Posted on Jan 05, 2009

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SOURCE: how can i find a picture of an idle air control valve 01 maxima

You can go to a Nissan Dealer and they will print one out for you, I have done it before.

Posted on Mar 17, 2009

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SOURCE: where is the idle control valve located on a 1996

The IACV is located near the front of the head on the intake side, just below the #1 intake runner.

Posted on Apr 06, 2009

pal03246
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SOURCE: WHERE IS LOCATED THE KNOCK

knock sensor is located just above the oil filter. you need to get under the car to see it. IAC valve is located on r/h side of engine that one is very hard to desribe as far as its location. its kinda onder the upper intake so you cant really see it. its on the underside of the intake manifold on r/h side on the back of the cylinder head. you should see small green connector going to it. the connector has 2 wires goin to it. you will also see a flat head screwdriver slot, that is for you to put your screwdriver into it to adjust base idle. good luck.

Posted on Dec 09, 2010

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2 Answers

2003 idle control valve location


On the throttle body just before the hose to the air cleaner.
Should be black with three wires.

May 13, 2014 | 2003 Chrysler PT Cruiser

1 Answer

My 96 nissan altima dies at idle


Could be a dirty throttle body, vac leak, or a defective idle air control valve. The computer adjusts idle speed by controlling the amount of air entering the throttle body via the control valve.
Is the check engine light on ?

Dec 24, 2012 | 1996 Nissan Altima

1 Answer

94 nissan altima won't start and iddle after cleaning IACV valve


An IAC (idle air control) motor is designed to adjust the engine idle RPM speed by opening and closing an air bypass passage inside the throttle body. The cars computer or PCM (powertrain control module) receives information from various sensors and will output signals to adjust the idle air control motor in or out to adjust engine idle speed by controlling engine idle air. An idle air control motor can fail one of two ways, either the motor short circuits and stops working or the motor will develop high resistance and cause the idle air control motor to react slowly, either failure can cause the engine to stall at idle. When a trouble code scan is performed it sometimes won't always detect a failed or weak idle air control motor.

Oct 08, 2012 | Nissan Altima Cars & Trucks

1 Answer

I have a 2005 nissan altima, the service engine light came on, the tach ometer goes up and down, when pressing on the excelerator the car will jump, the service engin light came on, the code read speed...


Is the car idling high? It sounds like air control valve has gone bad..just a though. I know when a car isn't idling right, its usually that idle air control valve or a vacuum leak

Jun 17, 2011 | 2005 Nissan Altima

1 Answer

I have intermittent rough idle on my 2003 nissan altima. car shakes in gear at stop, mostly fine in neutral.


Replace the spark plugs, spark plug wires, distributor cap, and rotor. Next, check the idle air control valve and replace it if found faulty. If it still shakes, have the timing checked out

Jul 01, 2010 | Nissan Altima Cars & Trucks

2 Answers

2005 altima with 2.5 engine idles up and down in park put in gear it idles about 1100 what could be the problem


Is the check engine light on? Could be several things. TPS or Idle selonoid. A bad battery could also cause your problem.

Feb 07, 2010 | 2005 Nissan Altima

3 Answers

Vibration on 2003 Altima 2.4


first check motor mounts ,them put in drive with the a/c on if you feel vibrates check the alternator some times have vibration and the mechanic made the mistake and change the pully.

CHECK THE ALTERNATOR

Jun 30, 2009 | 2003 Nissan Altima

1 Answer

2003 nissan altima rpm goes crazy (at 2 then drops to 0, back and forth)then it dies. it is doing it more frequently


I have also read in the service manual that doing an idle relearn helps with RPM problems. This is the procedure below. It is complicated to do unless you have a watch or something to count the seconds with.

DESCRIPTION
“Accelerator Pedal Released Position Learning” is an operation to learn the fully released position of the accelerator
pedal by monitoring the accelerator pedal position sensor output signal. It must be performed each time
harness connector of accelerator pedal position sensor or ECM is disconnected.
OPERATION PROCEDURE
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch “ON” and wait at least 2 seconds.
3. Turn ignition switch “OFF” wait at least 10 seconds.
4. Turn ignition switch “ON” and wait at least 2 seconds.
5. Turn ignition switch “OFF” wait at least 10 seconds.
Throttle Valve Closed Position Learning UBS002OA
DESCRIPTION
“Throttle Valve Closed Position Learning” is an operation to learn the fully closed position of the throttle valve
by monitoring the throttle position sensor output signal. It must be performed each time harness connector of
electric throttle control actuator or ECM is disconnected.
OPERATION PROCEDURE
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch “ON”.
3. Turn ignition switch “OFF” wait at least 10 seconds.
Make sure that throttle valve moves during above 10 seconds by confirming the operating sound.
Idle Air Volume Learning UBS002OB
DESCRIPTION
“Idle Air Volume Learning” is an operation to learn the idle air volume that keeps each engine within the specific
range. It must be performed under any of the following conditions:
 Each time electric throttle control actuator or ECM is replaced.
 Idle speed or ignition timing is out of specification.
PREPARATION
Before performing “Idle Air Volume Learning”, make sure that all of the following conditions are satisfied.
Learning will be cancelled if any of the following conditions are missed for even a moment.
 Battery voltage: More than 12.9V (At idle)
 Engine coolant temperature: 70 - 95ーC (158 - 203ーF)
 PNP switch: ON
 Electric load switch: OFF
(Air conditioner, headlamp, rear window defogger)
On vehicles equipped with daytime light systems, set lighting switch to the 1st position to light
only small lamps.
 Steering wheel: Neutral (Straight-ahead position)
 Vehicle speed: Stopped

Apr 29, 2009 | 2003 Nissan Altima

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