Ford Five Hundred throttle body issue causing check engine light and stalling when releasing gas pedal on Ford Five Hundred

Some Ford Five Hundred owners report experiencing throttle body issues that cause the check engine light to illuminate and stalling when releasing the gas pedal. These problems may stem from a defective electronic throttle body (ETB), resulting in limited or no throttle response. Common complaints include throttle body malfunctions, RPM surges, and deposits that can lead to sludge buildup, triggering MIL codes like P0505 or P0506. The average cost for diagnosing and testing the check engine light issue ranges from $88 to $111, with reported throttle body failures in the 2006 model averaging repair costs of $910 at approximately 102,850 miles. Some owners find that cleaning and readjusting the throttle body plate can resolve issues without necessitating a replacement, potentially saving on repair costs. It is recommended that these issues be addressed promptly to ensure the vehicle's proper functioning and to avoid more expensive repairs in the future.