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Changing CPS

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Old May 19, 2005 | 07:12 PM
  #1  
Sam'sPDS's Avatar
Sam'sPDS
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From: Central Missouri
Question Changing CPS

I have a 02 F350 PSD. I believe that the CPS is causing my hard bucking under steady throttle. I read on this site that I need to pull the #9 fuse. Well on my truck thats the heated Mirrors (don't have any). Do I need to pull the fuse for the "PCM keep alive" or just disconnect the battiers, then replace the CPS. Sure would like to do it right the first time.

Thanks for any suggestions.
 
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Old May 19, 2005 | 07:20 PM
  #2  
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I just changed the CPS, no disconnect of batteries or anything.
 
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Old May 19, 2005 | 09:31 PM
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Big Red 00 F350
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After reading recently about problems the CPS can cause, I bought one this week. Kwik, can you give a quick summary of what to do and not do when changing and do you just change at certain milage or wait for some symptoms of what? I have 82K miles on my 2000 F350 PSD manual tranny. I tow a 36ft fiver with it.
Thanks.
 
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Old May 19, 2005 | 09:46 PM
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No need to disconnect anything when changing CPS, just make sure the engine is not running. I doubt the CPS is the cause of your problem though. I would check other things first.
I would not change the CPS as a preventive maintenance, some last a long time, some don't.
 
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