Why does my Nissan Altima idle erratically?

Problem Description. The throttle body for the Nissan Altima is known for carbon buildup, and requires regular, light cleaning to maintain peak performance. After cleaning the throttle body, many owners notice a very high idle, erratic (bouncing) idle, and unpredictable power surging.

When does the Altima 4 cyl get heat?

I have a 2005 Nissan Altima 4 cyl. I can only get heat when driving down the road or revving the engine greater than 2,000 rpm or so. The engine coolant gauge is in the normal range. I have replaced both thermostats with the exact same results.

Is there no heat when engine is at low rpm or idle?

Visited the website for 2 consecutive days. Re: No heat when engine is at low rpm or idle.

What’s the problem with my 2005 Altima V6?

Same problem with my 2005 Altima V6, with only 44k miles on it!!! and this is the second winter in the last 4 years that I have to pay for a coolant flush to fix the problem. This time the thermostat is getting replaced too. Time for a new car! You can’t post conmments that contain an email address. An expert that got 10 achievements.

Where is the throttle position sensor on a Nissan Altima?

Your Nissan Altima uses a series of complex sensors to report what is going on to the ECU. The ECU then uses this information to adjust the timing, air fuel mixture, and more. When one of them goes wrong, it can lead to stalling for sure. Throttle Position Sensor – The throttle position sensor is typically located on the gas pedal.

How much does it cost to clean throttle on Nissan Altima?

Also, the cleaning procedure may be best left to a qualified technician. The solution can be as simple as disconnecting the battery for at least an hour, having the dealer reset the computer, or, in extreme cases, replace the throttle bodies. The average cost for a Nissan Altima Check Engine Light Diagnosis & Testing is between $88 -$111.

Do you need to do a Nissan throttle body relearn?

If you own a 2002-2011 Nissan Altima and clean or replace the throttle body or replace the ECU, you must do a Nissan Throttle Body Relearn Procedure to get a proper idle speed. Nissan calls this an Idle Air Volume Learning Procedure You can also perform this procedure if you feel the idle speed it out of spec.

What causes high idle after cleaning throttle body?

After cleaning the throttle body, many owners notice a very high idle, erratic (bouncing) idle, and unpredictable power surging. The cause is normal ECU adaptation: When the throttle body builds up carbon, the rate of airflow is slightly decreased.

When does the RPM go back to normal?

The RPM will usually go back to normal as you accelerate the vehicle, but will increase again after you stop. This is definitely not a normal situation. If you are experiencing a rough idle or your RPM is running high, then there are a variety of reasons for why this could be happening.

What should the idle RPM be on a car?

Your engine should normally get to around 700 RPM after you start the vehicle, depending on the model. If your idle is way off and you have one or more of the problems listed above, then you will want to diagnose the issue right away.

Why does my car slow down when I idle?

The cause is normal ECU adaptation: When the throttle body builds up carbon, the rate of airflow is slightly decreased. The vehicles computer reads this decrease in air volume, and adjusts the throttle body settings to maintain the proper engine idle speed.

Why does my Altima stall at a stoplight?

There are many other sensors that can cause your Altima to stall. These were just some of the most common ones. A dirty throttle body can lead to stalling in your Altima. If you let off of the gas coming to a stoplight and it stalls for a second or two and recovers itself, it very well could be a dirty throttle body that is causing the problem.

When to release the pedal on a Nissan Altima?

Release the pedal within three seconds after the light becomes solid. Start the engine and let it idle, wait 20 seconds, then rev the engine a few times and make sure the idle returns to normal idle speed.

Why does my Altima not move when I press the gas pedal?

Altima QR too. Good question…..if the motor was not revving up and the car won´t move, seems the TPS at the acc pedal assembly, is faulty..but the SES light should be on. This experience was with a friend’s car of mine…

What causes idle surges on a car ECM?

Idle surging can be caused due to other issues in the car, but if it happens in conjunction with other throttle position sensor symptoms, the culprit is often the TPS. At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges.

Can a bad throttle position sensor cause idle surging?

Why is my CVT dying on my Nissan club?

Part of your cvt dying. Whining would be next after the tranny warms up. Just had mine replaced at 175km. Took the tech out for a spin after it was warmed up and within a block, he said the belts were slipping causing the noise.

Why does the idle go up after cleaning the throttle body?

The idle is going to be high at first until the computer relearns the idle again. Cleaning the throttle body allowed more air to enter the engine, and the computer is compensating by adding more fuel.

When to clean the throttle body on a Nissan Tiida?

Cleaned throttle body on 2008 Altima SE (3.5L), idle now Cleaned throttle body on 2008 Altima SE (3.5L), idle now surges between 1500-2200 rpm. My understanding is IAVL relearn cannot be performed unless idle is under 1000.

Do you have to do a Relearn on a Nissan Altima?

Whenever you disconnect the battery or replace the computer or throttle body, you must perform a relearn procedure. The process involves some steps with a cold engine and others with a warmed-up engine.

What kind of car is Nissan Altima SE?

The car is a 2.5 2003 Altima SE automatic with 52,000 KM. in another thread. I just took my 2003 back in for the same situation after the recall. This was done last week and so far it has not come back on. i will let you know if it does though.

Why is my Nissan Altima idle relearn not working?

The process involves some steps with a cold engine and others with a warmed-up engine. If this step-by-step procedure doesn’t restore a smooth idle, it usually indicates some other issue with the engine. Have the car scanned for trouble codes.

What to do if your Altima won’t start?

Relay isn’t clicking but with the ignition on it gets 12 V DC on 2 terminals but not sending power to pump. I can jump the fuel pump and it kicks on but car still won’t start. It turns over but doesn’t hold if we spray starter fluid in the air intake.

What kind of engine does a 2005 Altima have?

I have a 2005 Altima, 2.5L, 4 cylinder. 121000 miles. Owned it about a month and a half. About 2 weeks ago, check engine came on and it was p0303, cylinder 3 misfire. We changed the spark plugs and one ignition coil and it started right up, check engine cleared. Drove over 1000 miles round trip on vacation with no issues.

How does a p0507 trouble code work on a Nissan?

Over time, carbon builds up on the throttle plate and in the throat of the throttle body, the ECM adjusts throttle plate opening to compensate for the buildup. At a certain point, the ECM can no longer compensate and sets a P0507 trouble code.

What to do when ECM says p0507 trouble code?

At a certain point, the ECM can no longer compensate and sets a P0507 trouble code. You must remove the electronic throttle body to clean it. Apply throttle body cleaner to a clean rag and wipe the carbon off the throat and throttle plate.

Why does my Nissan SL make a rattling noise when I start it?

One is that the VTC gear on the intake cam is making the noise and the other is that the cam chain tensioner is slow in filling with oil (i.e. hydraulic pressure) and it is causing the noise. Sometimes it rattles when we first start it and other times it does not. Once you start the engine, then turn it off it, then restart it, it nevers rattles.

Why does my Altima start with no oil?

First off the problem is not the heat shield and it’s not just the Altima. Second the problem is the cams/valves in the head. When the engine sits for 8 hour or less the oil coating drains off the cams/valves. What you are hearing on start up is the valves and cams with 0 oil on them. There is few things you can try first off I must talk about OIL.

What should I do when my Nissan SL clatters?

The Nissan shop manual says to pull the engine but you can do it with the engine in the car but it is very tight on the cam gear end of the motor. As you stated, you have to replace the entire bucket to make the lash adjustment on a valve. This, of course, requires that you pull the cams shafts out to remove the old buckets and put the new ones in.

Why does my Nissan Altima stall at 500 rpm?

When I took it on a test drive it was perfect, then I went to pick it up and drove about a half mile from the dealer (not a Nissan dealer) and the service engine soon light came on and it was idling around 500 rpms and would stall occasionally on restart unless I gave it some gas.

What’s the problem with my Nissan Leaf idle?

I returned it to the dealer and they said the problem was the throttle body so they replaced it and the idle was no longer low but high around 1100 rpms. They did an idle air relearn 3 times now and it’ll run fine at 750 rpms until it’s run a bit then it’s right back up to 1100 rpms.

How can I get my Nissan to idle?

When you reach the step to press and hold the accelerator for 20 seconds, watch the SES light. It will blink several times, then come on steady. Start the car immediately within 3 seconds of the steady light coming on. If successful, car will start, but the idle will drop drastically (because the injectors are still unplugged).

Why does my car idle high all the time?

It is completely normal for cars to idle highly until warmed up. Though on your particular vehicle high idling will likely be caused by a dirty idle air control valve, or carbon buildup on the throttle plate. The idle air control valve will be partially cleaned when cleaning the throttle body.

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