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massive rpm dropping

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  #11  
Old 11-02-2013 | 07:23 PM
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+1.... Fix the terminal on the battery so it's not such a PITA to remove.
 
  #12  
Old 11-03-2013 | 09:51 PM
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i disconected the negitive terminal all day today, so im going to see if that fixes my problem.
 
  #13  
Old 11-22-2013 | 11:51 PM
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I disconnected the battery and my truck ran great for almost 3 weeks, but it started doing it again.
Any ideas?
 
  #14  
Old 11-23-2013 | 12:24 AM
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You ever fix that batt. terminal? A weak battery or a bad connection will wreak havoc with your sensors, wrong voltage getting to them, crap signals going to PCM. All kinds of weird thingshappening as a result.
If not, replace those cables, might be your whole problem right there. You can get the cables with the molded ends at O'Reillys at a reasonable price, probably other places as well. Put them on clean posts with a little dielectric grease.
 
  #15  
Old 11-23-2013 | 02:00 PM
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theres no corrosion on the battery termonals or wires could they still be the problem?
 
  #16  
Old 12-03-2013 | 08:15 PM
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I'm still having the problem and I'm going to replace the terminals with brass tomorrow. Could the pcm or map sensor be the problem? i think im going to change the cam sensor this week.
 

Last edited by ww2fishing; 12-04-2013 at 01:41 AM.
  #17  
Old 12-04-2013 | 01:18 PM
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Could be any of a number of things. If the engine runs good though, it probably isn't the cam sensor. It just controls injector timing.

How low do your RPM drop when you let off the gas?
 
  #18  
Old 12-04-2013 | 06:12 PM
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A second or two; it drops and immediately picks up again. I just replaced both the top terminals and the map sensor and right now my trucks back to running good. I also looked at the last write up from a shop i went to and they had replaced the cam sensor.
 
  #19  
Old 12-08-2013 | 10:21 PM
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I replaced the battery cables and map sensor and I'm still having trouble what else could it be?
 
  #20  
Old 12-15-2013 | 03:25 AM
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could this be my power control module?
 


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