2001 Nissan Altima ENGINE STALLS

Tiny
AV8TOR70
  • MEMBER
  • 2001 NISSAN ALTIMA
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 96,000 MILES
Engine stalls at LOW RPM. During either a stop at a stop light, or intersection, SOMETIMES, the engine will have low RPM and stalls. Going 10MPH-20MPH (not having my foot on the gas pedal) the car has stalled twice. The car has also stalled after starting the engine. Car SOMETIMES stalls when I change transmission gear. It ran rough when I had it in PARKING or DRIVE, only way it doesn't stall is by adding power. Going about 40MPH or after a full stop, I press the gas pedal to accelerate, but the engine SOMETIMES hesitates to add power. Took it to the mechanic, the clean the fuel injectors and throttle valve. It keeps doing th same. The mechanic drove it, but it never stall when he drove it, so he cant diagnost the problem. Today, the car stalled 5 times when I had it in PARK.

Thanks!
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Monday, October 4th, 2010 AT 11:43 AM

5 Replies

Tiny
LEGITIMATE007
  • EXPERT
Hi, thanx for the donation, I still suspect the idle air control valve, even though you said that the mechanic cleaned it with the throttlebody, but lets look at a couple other possibilities, because I dont believe this is anything major at all. This will also be some preventative measures also. If they haven't cleaned the throttle plate of carbon, I suggest they do so, also take a look at the the gas filter have it replaced anyway, just for good measure, take a look at the air filter and change also. Also I would check fuel pressure too, (fuel pressure regulator). These are all minor things, but they will cause you driveability problems, like the ones you've mentioned. Have these things taken care of, and lets see how it goes. Keep me posted.
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Tuesday, October 5th, 2010 AT 9:32 AM
Tiny
AV8TOR70
  • MEMBER
Hey thanks for the quick reply. Today, the dealership sent my car home because they could not find the problem. They told me I need to take it to a Nissan dealership and do a "TAKING VEHICLE TO THE DEALERSHIP FOR POSSIBLE PCM PROGRAM REFLASH"
What do you recommend? They spend 2 days testing everything and did not fin a problem. I'm a college student and dont have the money to replace every detail of the car. Thanks again!
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Wednesday, October 6th, 2010 AT 6:04 PM
Tiny
LEGITIMATE007
  • EXPERT
Yeah, I understand, and thats the crappy part about owning a car, so the best thing to do is try to do some of the easier repairs yourself, its very intimidating but it really isnt that hard for some of these repairs, you can get some of the instructions from us, with no problem, a flash may help but before you do that do the things that I recommended, takes very little money. Just remember, before doing any repairs, remove the negative battery cable to avoid any unseen dangers. Also browse thru this website when you have time, we have tons and tons of stuff that will help you, and show you, we have videos too. Let me know how it goes or if you have any other questions, oh, and if you have a facebook, then check out 2carpros, request a friendship and the guys will start posting some stuff that will always be helpfull to you
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Thursday, October 7th, 2010 AT 8:09 AM
Tiny
AV8TOR70
  • MEMBER
Ok I will start by changing the basic parts of the car such as filters, spark plugs, and check the fuel pressure. I was reading the article on Engine Stalling and the Exhaust gases can be a problem. Few weeks ago before the car start giving problems, I hit the bottom of the car on a bump and it was a hard hit. Even though the engine did not stall right after it, this problem is making me think. So I was wondering if there any other methods to test this besides hitting the manifold when the car is cold? I can not lift my car, so is there another way I can check the catalytic converter as well?

Thanks again I really appreciate it a lot. This is the best website I have found, and I of course, have added you guys on facebook.
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Thursday, October 7th, 2010 AT 6:06 PM
Tiny
BMRFIXIT
  • EXPERT
Visually inspect exhaust system for dents, damage and leaks. Repair or replace as necessary. Exhaust system can be checked using a vacuum or pressure gauge.
If using a vacuum gauge, connect vacuum gauge hose to intake manifold vacuum port. Start engine. Observe vacuum gauge. Open throttle part way and hold steady. If vacuum gauge reading slowly drops after stabilizing, check exhaust system for a restriction.

If using a pressure gauge, remove front oxygen sensor. Connect a 0-5 psi pressure gauge. Run engine at 2500 RPM. If exhaust system backpressure is greater than 2 psi, exhaust system or catalytic converter is plugged. Repair or replace as necessary.

Crank position sensor is a very common failure on altima and will not set a code in most cases
symptoms stalling at low idle, stop and go traffic and at red light
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Friday, October 8th, 2010 AT 10:02 PM

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