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Speedometer problems

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Old Apr 8, 2009 | 06:21 PM
  #1  
cljimmy72's Avatar
cljimmy72
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Mountain Pass
20 Year Member
Joined: Mar 2006
Posts: 111
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From: north east pennsylvania
Speedometer problems

Over the past weekend I put in new plugs, wires, rotor and cap on my 1995 F150 4X4 302 powered truck. Now I am having issues with the speedometer between 50 and 55 MPH. The needle fluctuates between 35 and 65 rapidily. It's like it's waving at me. Is this speedometer electronically controlled? The wires I used are Motorcraft WR-4093. The plugs I used are Autolite XP25 Extreme Performance Iridium. Is this related-the maintenance I did and the problem I am having now? It was acting fine before I replaced the components.
 
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Old Apr 8, 2009 | 07:40 PM
  #2  
RIKIL's Avatar
RIKIL
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Joined: Sep 2008
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doesn't have anything to do with the wires or other parts you replaced. the needle (PSOM) is controlled by the VSS, read this thread, should help - https://www.ford-trucks.com/forums/8...r-jumping.html

sounds like the same issue I was having
 
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