2002 CV runs rough in mid-cruise ranges.
I have a similar problem to many I've come across in this forum with a 2002 CV with under 50,000 miles on it. Idle is fine but it bucks and acts like it's missing during light accelleration and while cruising at lower to mid-RPM's. It's not a regular miss, feels more like ignition cutting in and out momentarily and very irregular. It's never stalled or quit. Idle and heavy accelleration are smooth.
It's not throwing any codes so I'm at a loss as to where to start looking.
I just recently had my first major expense on the car when I had a dealer replace my fuel pump and filter after the original pump quit. No codes thrown for that either (which surprised me). I would have found and replaced this myself if I hadn't been stranded across metro-Detroit from my home garage. $800.00 was tough to swallow for such a simple fix.
I was very suspiscious of a fuel problem before the pump went. This problem started after $4.00/gal prices and I started hunting for cheap refills. I had 3 vehicles all start lurching like this just last fall but the '99 Taurus ended up needing new plug wires and I think I have the 4x4 pickup nailed down to an O2 sensor. All were running rough after years of reliable service so although the symptoms weren't identical I thought the similarities were more than coincidental- but no longer.
I've read where most folks have focused on plugs and coils. With mine having such low miles, being inaccessible and without any codes I hesitate to start there. I wonder if there are any PCV or air flow units that might cause this type of poor performance. Any guesses?