inital start 800rpms after 30 to 45 seconds goes to 1200 rpms and rough idle

inital start 800rpms after 30 to 45 seconds goes to 1200 rpms and rough idle 1 Answer

why wont my throttle go to idle while driving? 1 Answer

While driving and coming to a light or to slow down my 2006 f250 5.4l will not always go to idle. it will go to about 1200. making stopping difficult. i checked and cleaned throttle body. was not dirt...

I have 1999 f250 the key will not start it. It has a new ignition switch and power goes to it, but the key will not not turn it far enough to the start position, got any answers? 3 Answers

I have checked most thing out and it is somewhere between the key and the ignition switch.

02 F250 Super Duty - started about a month ago, go to start truck and nothing ? 4 Answers

started about a month ago went to start truck, will not start, have power, replaced ignition relay mounted on bottom of coloumn, looked under neath splice for starter solenoid looked corroded, so i ...

Failure to start. Turn key and get either the 'click clic click' of the solenoid not engaging, or a single clunk and all the electrical goes dead. 5 Answers

The battery is new and tests good. Wiggling the ground wires seems to affect whether I get clicks or clunk. Truck was driven without incident an hour prior to not starting. Used a continuity tester on...