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Cat C12 crank no start again

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Jose Rita:
Sorry its been a while.  I just got the rv home.  The mechanic checked and not a fuel related issue. He believes it is an electrical issue, it did start and he was able to complete his work I had it there for well over a month for new wheel bearings followed by all air bags replaced…pretty penny.  The no start issue really set him back and backorder on air bags.  Bringing it back home I noticed that the dash lights would flicker once in a while so he was in the right direction.  I will try to look at the grounds and fuses while here and will after getting some OT in,  if I cant find, send it back to him.

Thank you all fir the help and suggestions

Carl Boger:
Jose,

I would unplug the main plug behind the electrical panel under the drivers seat area and clean the two halves with electrical  contact cleaner.  i also used mig welding tip cleaning rods and wire brushes to get the area  as clean as possible.  I then used dielectric grease around the halves and used a zip tie to keep it together and tight. 

I have done this once or twice in the last 8 or so years and it has fixed the flickering lights no start problem for me.  if on the road I can generally just twist/push the connection and it will start.  Hasn't been a problem for years now and hopefully it won't again.

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