Nissan Repair: nissan altima, nissan altima, 2 quarts

Question
QUESTION: I have a 2001 nissan altima it recent just started jerking when I come to a stop and when I am finna take off it jerks a lil but when I get into it drives fine it only does it when I come to a stop my check engine light comes on and goes off I had it check it said my o2 sensor before converter is bad could you please help me

ANSWER: Hi Emmitt -

When was the last tune up you had? e.g. spark plugs, wires? Non firing cylinders could cause O2 sensors to activate the CEL.

Let me know -
aloha
calvin

---------- FOLLOW-UP ----------

QUESTION: my transmission fluid was real low I put 2 quarts in other day the jerking stop today my car started back jerking again I am wondering do I have a leak I don't see any spots or anything when my sit up could it be leaking while I am driving because I put the 2 quarts in there day now is low again few days later

Answer
Hi Emmitt

You can lose transmission fluid a few ways. If you are not seeing it on the ground, then try checking your radiator water. Sometimes the cooling lines leak in there. Other than that you do have a modulator that uses vacuum to shift the gears. Check your exhaust if there is white smoke, or oil in the pipe.

Let me know -
aloha
calvin