Is a 1997 Jeep Wrangler 2.5L that accelerates on its own and red-lines as soon the engine turns over without anyone touching gas pedal possessed?

No, a 1997 Jeep Wrangler 2.5L that accelerates on its own and redlines as soon as the engine turns over is absolutely not possessed. This is a serious mechanical problem, likely related to the throttle control system or the engine's computer (PCM). Possible culprits include:

* Faulty Throttle Position Sensor (TPS): This sensor tells the engine's computer the throttle's position. A malfunctioning TPS could send incorrect signals, causing the engine to rev uncontrollably.

* Stuck or Damaged Throttle Cable (if equipped): A cable could be sticking open, causing the throttle to remain open even when the pedal is not pressed.

* Faulty Idle Air Control (IAC) Valve: This valve regulates air intake at idle. A problem here could lead to high idle speeds.

* Vacuum Leak: A leak in the intake system can cause erratic engine behavior.

* Faulty PCM (Powertrain Control Module): The computer itself could be malfunctioning, sending incorrect signals to various engine components.

* Throttle Body Issues: Dirt, debris or a sticking throttle plate in the throttle body can cause the issue.

This is a dangerous situation. Driving a vehicle with this problem is extremely risky. Do not attempt to drive the Jeep. Have it towed to a qualified mechanic immediately for diagnosis and repair. Ignoring this problem could lead to serious damage to the engine or an accident.