How long does a 1991 Ford F150 run?
How long does a 1991 Ford F150 run? It either shuts off or keeps idling up an … read more 1991 Ford F150. 5.8 351. When started it idles up and down for about 45 seconds. Then idles fine for about 10 seconds, then dies. It does this like clockwork every time. Why does my Ford F150 start then die? PCM is throttling injectors and changing fuel delivery because it is confused by the amount of air entering system . If it thinks not much air-- its going to cut back fuel . When does a 1985 Ford F-150 stop...