He will probably end up changing any number of sensors. Throttle position sensors usually seem to die in the 150K range, maybe it has been replaced? )2 sensor might need it too. There are many more, and sensors are the only problems I have had with mine. Tell him to avoid replacing anything with bosch, and use either NGK or Denso ignition parts, and sensors.
Send him here too.

Sold Truck: 89 DLX extra cab 4x4 22re Automatic/ New truck 97 T100 4x4 auto Sr5