Is the ses like on, when your having the problem? Have the codes checked, some of the national brand autostores will check codes for free if you can get the vehicle down there. If there is a misfire code, it might tell you which cylinder/s is having the problem.
If you think the problem is a fuel issue, start by checking the fuel pressure. I don't care if everything is brand new, I'd still check fuel pressure.
As far as the fuel issue, if you have the csfi fuel system, there are bulletins about cleaning the fuel poppets. That is a shop procedure, I don't think pouring stuff in the tank will help
Wednesday, November 5th, 2008 AT 12:49 PM