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6.7L Power Stroke Diesel 2011-current Ford Powerstroke 6.7 L turbo diesel engine

Speedo bouncing & codes.

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Old Sep 10, 2022 | 08:32 AM
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Allimport21's Avatar
Allimport21
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Speedo bouncing & codes.

2014 ford 350
So my truck started acting silly 2 weeks ago. 1 day the speedo just started bouncing & screen flashing saying communication bus off. Lost communication with module. Now its constantly happening & have to stop to turn truck off.
any ideas

 

Last edited by Allimport21; Sep 12, 2022 at 09:51 AM.
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Old Sep 12, 2022 | 09:30 AM
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The ABS control module is on the same network as much of the DPF emission sensors. If your truck is deleted you may want to check the three wire sensor terminations for moisture. On my deleted 16 I would occasionally get abs and stabilitrac faults that were caused by water.
 
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Old Sep 12, 2022 | 09:51 AM
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My speedo is also bouncing
 
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