When I pull up to a stoplight, my auto 95 max seems like its missing.

If I put the car in neutral the loping stops.

Any ideas what could be causing this?

Thx!

 

Mine does the same thing, I am replacing the CPS today, I'll let you know if it helps.

 

Thx!.........

 

any thing?

 

what's your Idle in D and N? Mine does the same thing. The idle in N is good 750-800rpm, while shifting into D/R will yield about 550rpm which makes it seems like it's idling rough.

 

^ mine does the same thing - atop of that it has that rough idle vibration, where when you put it into neutral it stops.

 

I had this problem when my ignition coils went bad.

 

Usually the problem of low/hard idle comes from the build up of crap throughout the intake. The cars are 10 yrs old. so it would be your best idea to try and to clean anything and everything starting from your air filter all the way to the intake manifolds. Use maf cleaner on maf... and air intake cleaner on intake. The Idle Air Control Valve on mine was filthy as well as the upper intake. I recommend taking the pieces apart. If you spray and spray and spray... you most likely will mess up something.

There is a difference between idling low as opposed to missing. You should check and see if a code comes up first. Most likely it is a sensor. The cleaning of the other stuff wouldn't hurt though.

 

It turned out to be Cyl#3 coil plug
Luckily I have spares hanging about the place.
I started with the cheapest parts first
Air filter/fuel filter/ spark plugs/ Fuel injector test(power balance test)Via scan tool.

 

I had some off and on again problems with stalling at red lights and the car would act funny when I jumped on the highway with out warming up. It turned out that the coolant thermometer was stuck open so my engine was always cold.

It also explained way I was always freezing my *** off last winter.

 

I also have a transmission problem but am unable to create my own thread, so I hope nobody minds me posting it here. I have a 96' Maxima SE with about 186k on it. The engine is in excellent condition, havent had any major problems with it till now, I replaced the clutch at 180k. The transmission seems to be making a slight grinding noise when in neutral with the clutch out, but as soon as i engage the clutch it quites up. When I start driving it makes the noise, loader when i accelerate, but when I'm rolling and press the clutch the noise continues. I jacked it up and heard no noise. Set one tire down and let the other spin and heard the noise, and vise versa. I'd have thought throwout bearing but it was replaced with the clutch and thats only 6k mi old. Any ideas?

 

sounds like you have baad bearing, plese try to post your own thread, that way you'll get more 5SPD experts to help you. We're talking about an automatic here.

 

In my case, i've just discovered that i have a valve cover seal leak. I was taking put my coils packs to ohm-test them, and my 4th cyl. coil was drenched in oil! This sux @ss since, the valve cover gasket was just replaced, and the outside leak stopped, but apprently that made things worse since it's now bleeding internally!!! But that could contribute to bad idle.