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Impala Problems

Iwannagofast

Iwannagofast

New member
Last night my impala ss broke down at mcdonalds. It started sputtering in the drive through and the check engine light came on so I killed it. When i went to restart it just clicked and everything blacked out like a bad battery connection so i pushed it into a parking spot. Tried starting again and it started fine without much hesitation but runs not so well with the missing and sputtering and if you give it any gas it smokes like crazy out the tail pipes.

I have considered head gasket because of the smoke but the oil doesnt look milky and im pretty sure theres no way it over heated....cus i checked the gauges as soon as i noticed a problem and it was fine.

So im really thinking its gotta be electrical. I have a homemade CAI and it was raining so i considered maybe the pcm got wet but i looked and it seemed pretty dry all around it. I def wouldnt think enough moisture to do damage.

Any ideas?
 


Check the plugs? See if ones bent. I hate to always use that but most of the misfiring issues tend to turn to plugs/wires/coils/ICM...or a vacuum leak
 
Fuel that isn't being burnt could be one...what color smoke is it? Could be the Coils...try swapping them around...then...it could be the aluminum piece the coils are bolted too...the ICM. Also, I'd still get some new plugs and wires anyhow if you haven't done that.

Blue = oil
White = water
Black = fuel
 
It was pretty white looking to me.

I have a friend that is going to bring his tech 2 down tomorrow so we can check the codes.
 
Oh and just wondering....How bad is it to do the spark plugs on this car....Im sure the front 3 are no biggie but i figure the back 3 wont be fun
 


Ok so we hooked up the tech 2 and found it was misfiring on 3.....Took the plug wire off and found that we had spark all the way to that point so took the plug out to check it and it was soaked....Well at first we thought it was water from a head gasket on it but now thinking it might be fuel and maybe the injector is stuck open....It white smokes at idle bad still.....

Does anyone know how i can test the fuel injector to see it that is my problem?
 
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