Topic: Hesitation Q's

[Fman]

Have a slight miss / studder / hesitation when accelerating. Can't really feel it in 1st and 2nd, but 3rd, 4th, and 5th I can. It's not real bad, but I can notice it. To try and get rid of it, I did a can of seafoam through the intake, and a can in the tank. Cleaned out the TB, and after that, I put in new plugs, wires, cap and rotor. It did nothing to help. Gas milage went down a little actually. I'm not getting a CEL? What can it be? Any of you guys ever have anything like this happen? No vacum leaks, newer O2 sensors. Thanks.

1999 XJ 2dr 2.5l, 5 speed, 4x4 106,000 miles

[damon54]

My 96 XJ did the same with the 4.0.   Going through the tolls around orlando the engine would almost cut out when accelerating out of the toll booth.  I replaced the Crank position sensor and have had no problems since.

[Fman]

Was it showing a code?

[damon54]

Nope