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correct way to reset computer?
i was told to go in the fuse box and on the lid is the name of what each fuse controls and the number. Lood for the one that says pcm and pull it out and put it back in. On my 2005 4.7, it was i believe fuse #23
i dont think it is necessary to reset our comps, though i do do it myself. our comps are learning so they will adjust on there own. i like seeing results immediately after a mod, so i disconnect the battery and then turn the ignition as if to start so that the starter pulls any residual current left in the truck.
ORIGINAL: djr04
Pull PCM fuse, turn and hold key to run until you hear two dings. turn off and put fuse back in.
Pull PCM fuse, turn and hold key to run until you hear two dings. turn off and put fuse back in.
Now for the right way to completey reset it.
To reset the pcm
Leave battery CONNECTED, DO NOT DISCONNECT IT.
Buckle the driver seat belt so that it won't cause chimes that will be confusing.
Remove the PCM/SKIM fuse from the fuse box. Its marked on the bottom of the fuse box lid.
Insert key and turn all the way to START and hold it there until you hear 2 chimes. The truck will not turn over.
Remove key, unbuckle seatbelt, replace fuse, done.
The first time you go to start it, there may be a delay for cranking for a second or two. This is normal.
To reset the pcm
Leave battery CONNECTED, DO NOT DISCONNECT IT.
Buckle the driver seat belt so that it won't cause chimes that will be confusing.
Remove the PCM/SKIM fuse from the fuse box. Its marked on the bottom of the fuse box lid.
Insert key and turn all the way to START and hold it there until you hear 2 chimes. The truck will not turn over.
Remove key, unbuckle seatbelt, replace fuse, done.
The first time you go to start it, there may be a delay for cranking for a second or two. This is normal.
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On a 2005 5.9 hears a stumpper. Tried doing hard reset,with #23 fuse (pcm,skim). It still cranks and starts with removed. Anyone have any input ,please. Never any chimes after trying .









