saveme20

Idk what's going on at low rpm dosn't matter which gear the car starts bucking and only while crusing. The sec. I give it gas it goes away what the hell! I just put in lucas fuel cleaner to see if it helps any, I just replaced the spark plugs and fuel filter like 4 weeks ago and didn't have any issues at all after now all of a sudden it's doing this I searched and couldn't find any answers I needed PLEASE HELPPPPP!!!!! I can't stand it when the car isn't running right ps. all my mods are in sig.



I just took it out for lunch and it's still doing it I talked to a friend and he said if I didn't put platinum plugs in that could be the issues thought?

Silver2001GT

if its bucking real bad you shouldn't waste much time on a forum It would probably be best to get that thing to a shop...

I also have the x3, are any of the diagnostics on there telling you anything or does it look clear?

MU71L4710N

^ yeah no.....shouldnt be telling people to rush their car to a shop just because they post with problems and you have no idea what it is. forums are the best place to start rather than taking your car to a shop and getting *** raped when they tell you your muffler bearings and your flux capacitor are the cause of the problem because you did no research on what it likely is.




OP, what kind of plugs did you use?

pull your cops off and check for water or coolant in your plug wells (if theres water post back), and put the cops back on. if the plugs are good and no water in the plug wells, you probably have a bad COP. i'd give it a few days and see if a code comes up so you can atleast narrow to which cylinder isnt firing. on the downside, running a car that isnt firing on one of the cylinders puts un-ignited fuel in your exhaust which eats your cats out which can cause other problems.

keep in mind the basics of what is needed for combustion: air fuel and spark. my car has started sputtering many times and every time there was either a bad cop(s), or water in my spark plug wells (during heavy rainstorms water can come in through the holes the hoodscoop bolts to).

dastangman

Here, read this thread, may be a similar issue. I too was having this problem with my Vortech Cobra, and it was also stalling when I went into neutral. A tune helped my stalling issue, but the bucking persisted while on the interstate or just cruising at a low RPM. Anyways, my car is getting forged internals as well as many other components replaced, so I don't know if the problem will still be there when I get it back, but again check this thread out and see if it helps.

http://www.svtperformance.com/forums...verything.html