Join Date: May 2012
Location: Alabama, Montgomery area
Thanked 127 Times in 120 Posts
Mentioned: 5 Post(s)
Quoted: 280 Post(s)
Feedback Score: 3 reviews
Hey all! I have a late 99 F250 Superduty. It recently started running rough like it was out of fuel or had air in the lines. Since I
ve had it it had done this at 1300-1700rpms but now will do it the entire time. I replaced the CPS and that hasn;t done anything, replaced the fuel filter and that hasn't done anything.
When it does it, I can go to accelerate and theres a second or two delay then it takes off.
I'm guessing its some sensor as I can unplug the batteries and reset the computer and it will even out for about 5-10 miles then it starts again. I tried to get Auto Zone to scan it but they won't because the Check Engine light hasn't been thrown yet...