Oil in the distributor will do that. But why is oil getting in there? The positive crankcase ventilation(PCV valve) should prevent this. Plus the should be one seal on the distributor and /or cam. I would pull the distributor and check for sloppiness. Also check for the cap seal. Oil could be from the valve cover.
SOURCE: 2000 nissan sentra runs well on warm up, stalls in
i actually had this problem on my 97 sentra, its the air idle control valve. when your car is idling with your foot off the pedal, the throttle plate is closed, so this little valve opens up to allow air to detour around the closed throttle plate so your car can continue to run, when you give it gas the plate opens so your engine can increase revs.
after awhile the idle air control valve gets dirty with carbon buildup and eventually makes the valve stick so no air can pass through it which is why the car will stall when it attempts to idle. all it needs is a good clean. its very easy to do, just get some brake cleaner and a toothpick or q-tip or some other small brush.
locating this valve is a bit tricky, yours is a 2000 model mines a 97 so it wont be in the same location as mine, but what your looking for is a little cylinder type thing somewhere near the intake with an electrical connector at the back of it, take the connector off, mine had 2 phillips head screws holding the valve in place, once removed the valve slides out, and you can proceed to clean it. make sure you get all the black soot out of it and play around with it until it opens smooth, reinstall and it should run fine. to find out the exact location of your idle air control valve id google it or try a nissan forum, but itll be close to your intake manifold near the firewall. best of luck, once found its a very easy fix.
SOURCE: Slight miss, starts a little hard then runs fine rough idle from time to time
It sounds like its out of time move the distriutor a little bit
SOURCE: i have a 99 ram 1500 5.9L that is running rich and
I have heard that if you run the **** out of it before taking it in it will pass
Testimonial: "thanks i will try that."
SOURCE: My battery light indicator on dash board stays on
This is usually caused by a faulty alternator.
It stays on because the alternator is not generating sufficient voltage on the control winding to extinguish it.
Check battery terminal voltage while motor running with headlights on or blower fan running.
Terminal voltage should be approx 14.5V.
Ensure alternator and engine are properly connected to ground and the battery negative terminal.
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