Battery
Senior Member
Joined: Mar 2001
Posts: 4,506
Likes: 6
From: Puyallup, WA
If you do it in less then around 10-15 minutes, you shouldn't lose any of your presets and the computer will still have all your current settings.
If you take longer, then the computer will 'reset' back to it's most basic modes and it will have to 'learn' your driving style again..
The biggest thing to remember, if your computer has reset, to turn on the engine, but don't touch the gas pedal at all. The idle might jump around for a couple of moments. That's normal. The computer has to find it's idle. After a couple minutes of idling, you should be fine, then you can drive it as you normally do and it'll re-learn your habits and such!
Good luck!
Mitch
If you take longer, then the computer will 'reset' back to it's most basic modes and it will have to 'learn' your driving style again..
The biggest thing to remember, if your computer has reset, to turn on the engine, but don't touch the gas pedal at all. The idle might jump around for a couple of moments. That's normal. The computer has to find it's idle. After a couple minutes of idling, you should be fine, then you can drive it as you normally do and it'll re-learn your habits and such!
Good luck!
Mitch
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Joined: Aug 2003
Posts: 1,921
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From: Susquehanna Valley, pa.
Originally Posted by Neal
HI!... Make sure it's a OPTIMA "YELLOW TOP thats about it. 
Optima are very good but getting 8 years from the factory one is great and is why I'll buy another.
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Joined: Feb 2005
Posts: 15
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Mine died yesterday truck was built 11/99 til 12-27-06 on the factory battery. Replaced it with a napa 75 month.
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Joined: Jan 1999
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From: WINDSOR, ONTARIO, CANADA
Originally Posted by lees99f150
i still have the original ford battery in my truck, so thats what I'll be replacing it with.
Optima are very good but getting 8 years from the factory one is great and is why I'll buy another.
Optima are very good but getting 8 years from the factory one is great and is why I'll buy another.
Senior Member
Joined: Jul 2004
Posts: 6,200
Likes: 39
From: Easton, Pa.
If you want to keep from re-booting the PCM, connect a 9 volt battery thru a cigerette lighter socket.
This keeps enough power on to keep it from re-booting the PCM while changing the battery.
Be sure to remove the hood bulb first and keep the doors closed until the change is done.
A little 9 volt can't power those bulbs.
This keeps enough power on to keep it from re-booting the PCM while changing the battery.
Be sure to remove the hood bulb first and keep the doors closed until the change is done.
A little 9 volt can't power those bulbs.
Senior Member
Joined: Jul 2004
Posts: 6,200
Likes: 39
From: Easton, Pa.
Take the battery out and it re-boots wehether you want it to or not.
Re-booting clears all the tables back to stock unlearned condition.
No matter how fast you do it, you don't know if you was fast enough.
Truck still runs either way.
Re-booting clears all the tables back to stock unlearned condition.
No matter how fast you do it, you don't know if you was fast enough.
Truck still runs either way.
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Joined: Aug 2005
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From: DFW
Originally Posted by Neal
HI!... The only reason I like the OPTIMA "YELLOW TOP" battery is that it can be totally drained over 300 times and still except a FULL charge. My factory battery was discharged 4 times at the dragstrip running my electric fans and that was it for it.
