Thread: Please help! Loss of acceleration.

Hello, I am new to the forum but I am looking for some help with my ride. I have 140,000 miles on my 97 SE with the 3.8L. It starts and idles fine (hot or cold) and the cars runs strong for a few minutes but after it heats up the acceleration is poor and at cruising speed, you can tell it is hesitating a bit. Does anyone have any suggestions?

Tried that. Have replaced the fuel filter and cleaned the fuel system. I found a vacuum line to the fuel pressure regulator that was cracked so I am replacing it to eliminate that as part of the problem.