anarchy57

iTrader: (2)

Well lately I have noticed that my car jerks, when I'm at a red light or just stopped. I don't know what it is, but it feels like something is giving the car a little "shove" and this usually happens around 500-700rpm, does anyone know what's wrong?

PKaiser

clean your throttle body if u havent, i know that help with ruff idle.

anarchy57

iTrader: (2)

alright thanks, could there be any other solution? what exactly is wrong with my car?

Ant96GLE

iTrader: (4)

Its not your throttle body, you have a 99... its your Coil packs that crapped out on you.

gtr_rider

iTrader: (50)

Mine has that SAME problem, so does my moms minivan

anarchy57

iTrader: (2)

my coil packs? this sounds like im gonna need money to fix this problem...money which i dont have...

and this doesnt sound safe to be driving on this thing

Ant96GLE

iTrader: (4)

99's are notorious for bad coils.. and it sounds like you have the symptoms

anarchy57

iTrader: (2)

is there a way to check? i was suggested to get a multi meter and to check the coil packs or watever and i dont have the CEL coming on

is it safe to be driving with bad coils?

Ant96GLE

iTrader: (4)

They're not always going to show a code, you need to check the resistance.. you'll need an ohm meter. I think its in the stickies on how to check the.

Its not "not safe" but its not good for your engine to be running on 5 cylinders instead of 6

amixamfan

i think this may be the problem with my car it feels like it kind of sputters when stopped i should probably get it checked out before my 90 day warenty wears out

anarchy57

iTrader: (2)

couldnt find any write up or anything in the stickes..can someone tell me how to check the coils? i got a multi meter layin around so i guess all i need to do now is check the coils

Ninos_Maxima

iTrader: (5)

Had the same problem, get new coils,

PRPmax

Try cleaning out your injectors before replacing coil packs.. I had the same problem on my girls 99. It would have a sputter to it when at the light but then smooth out when accellerating. It turned out that she did infact have a bad injector. Also when your mentioned that it just stopped at red lights, do mean the car will stall out on you?

anarchy57

iTrader: (2)

na, when im at a red light, the car will "jerk" and when i let go of the gas and let the car roll slowly, it still "jerks" but it doesnt seem that bad after i accelerate, im not too sure, when i get out tomorrow ill see how it feels when i accelerate n such

PRPmax

Yeah thats exactly what I had to deal with. You have a dirty injector my friend, either clean or replace it depending on how dirty it is. Pretty soon it'll go out and your CEL will turn on and more then likely you'll get a misfire code.

anarchy57

iTrader: (2)

hmm sent you a PM PRPmax

anarchy57

iTrader: (2)

well i drove the car today, and the "jerking" wasnt nearly as bad for some reason, geez this is so confusing haha

gtr_rider

iTrader: (50)

your first post describes my problem, but no answer yet.. TTT

viktornguyen

i have kind of the same problems as well. it's really on and off.

Only difference is i have a 98... how do u clean injectors?

RockfordMax

iTrader: (2)

ok, one thing i dont really understand yet. why is the 99 so bad for coils? is it just bad electronics or are the packs themselves bad? if its the packs, cant you just take some from a 98, or are they all the same and its the car? tia.

cardio175

Did you check your tranny and engine mounts?

dsn111

csn replace the coils with other year/models from a junked car?

bratfry

Is this the same problem that I am having with my 99SE...

At a stop light, in drive, foot on brake, SOMETIMES, the idle drops for about 1/2 second, kind of like a idle burp...Not all the time. If I don't use the foot brake and set the hand brake, it doesn't seem to have the same problem, at least it doesn't seem that way. Acceleration is ok.

It not all the time and usually when the idle speed is down around 600-700 (warm engine).

Cleaned the throttle body this summer and put new plugs in last summer (OEM type).
60000 miles on the car.

I replaced all the Oxygen sensors in fall.

Can coil and injector problems be so intermittent like this?

Gary

Maxima99SE

iTrader: (2)

coil packs... i had the same problem with coils #2 and #5 so I replaced them and problem solved

Jatan

iTrader: (3)

Nissan switched to a different manufacturer for the coils and I guess they did a crappy job making them. Older coils (95-98) didn't experience this problem (some people's coils needed replacing, but not a majority of them like the 99s) and Nissan won't do a recall on it

Either replace the one that is bad (if you can figure it out) with a new one or buy a used set from eBay and keep the rest as spares