Unhook battery after muffler install??
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Rookie
Joined: Dec 2006
Posts: 73
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From: Canada
RE: Unhook battery after muffler install??
Do you pull the fuse, then put it back in before turning the key on.
Or leave it out until you hear the chimes, then install the fuse?
Odd it would work while it's out, but maybe that is what holds the memory?
Or leave it out until you hear the chimes, then install the fuse?
Odd it would work while it's out, but maybe that is what holds the memory?
All Star
Joined: May 2005
Posts: 946
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From:
RE: Unhook battery after muffler install??
There is one mistake;
You turn to key to START (the truck will not turn over with the fuse out) and hold it there until you hear a chime or hold it longer to hear a second chime. 1st chime is pcm, 2nd is tcm.
You turn to key to START (the truck will not turn over with the fuse out) and hold it there until you hear a chime or hold it longer to hear a second chime. 1st chime is pcm, 2nd is tcm.
Captain
Joined: Dec 2004
Posts: 679
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From: New Castle Delaware
RE: Unhook battery after muffler install??
ORIGINAL: FSUHEMI
the PCM is the ECU, it stands for the powertrain control module. I tried this last night and it acted just as described. the fuse is under to hood on the front driver's side, its fuse #23 on my '04 5.7L. I havent gotten to drive it yet to see if theres a difference but ill let you guys know.
the PCM is the ECU, it stands for the powertrain control module. I tried this last night and it acted just as described. the fuse is under to hood on the front driver's side, its fuse #23 on my '04 5.7L. I havent gotten to drive it yet to see if theres a difference but ill let you guys know.