Problems with 2003 Terracan Jeep
 

I have a 2003 Hyundai Terracan Jeep - the problem is it won't accelerate past 2.5 on the gauge.

I have being to my mechanic about 4 times and no luck - they have tried replacing the wiring, alternator, cam shaft sensor and crank shaft sensior.

Has anyone else experienced something similar or any ideas what it might be.