Hi Guys.

I have been having a problem for a few months now and even ended up having to replace the engine because the block was craked from overheating. I still have the same problems. The car idles rough at first then smooths out, especially if I press the gas. This only happens when the car is warmed up. The car also hesitates at part throttle and wot. When I reset the computer that car will not hesitate as much for a few days then starts back. Here is what I have replaced so far, engine, throttle body, TPS, MAF sensor, fuel injectors, fuel pump, fuel filter, spark plugs, wires, coil, egr valve, exhaust manifold gasket, checked all vaccum lines. I would really appreciate any help. I just can't figure this stang out. ( Thanks!