2000 f150 v8 4.6. changed out speed sensor. New battery and alternator. Air mass sensor. Transmission range sensor. Throttle position sensor. Cleaned intake and switched egr. While driving oil light comes on. Speedometer drops to zero. Rpms stay at 1500-2000. Temperature gauge drops to cold. OD light flashes. Push on gas pedal and nothing but raises the rpms. No power almost limp mode.. ugh tired of chasing my tail...