'01 5.4L 4x4 Supercrew Hesitation/ Lag w/ AC
Having a problem in this GA heatwave. I get a hesitation or lag when running the AC and I take off. I even experience a general lack of power when going up a hill with the A/C on. Switched over to high octane Shell to no avail. Problem has only existed while running A/C. Check for vacumm leaks and also cleaned throttle body. Have run injector cleaner as well. Any other ideas?