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General Discussion of preventative/corrective maintenance and other technical issues regarding your coach that are not covered in other Mechanic's Corner categories (ex. refrigerators, water heaters, and compressors).

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  #1  
Old 06-01-2009
lborkey lborkey is offline
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Default Mystery Pump

Ok, here's a stumper (for my anyway). 1979 FC-33, CAT 3208 NA. In the passenger-side front outside compartment, there is a rectangular screen box. Inside this box is a pump to nowhere. Meaning that there's only one hose to it. It looks like a fluid pump and my guess is that it might be the auxiliary fuel pump. However, as indicated by the red circle, one side of the pump is open. Flipping the aux. fuel pump switch does nothing (to this device, anyway).

So who can tell me what the heck it is? And do I need it?
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  #2  
Old 06-01-2009
Stephen Stephen is offline
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It is a vacuum pump for the cruise control
The pump does require occasion maintenance
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  #3  
Old 06-01-2009
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gcyeaw gcyeaw is offline
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It is a vacuum pump for the cruise control.
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  #4  
Old 06-01-2009
lborkey lborkey is offline
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Thanks for the quick replies. The cruise control hasn't worked in years according to the previous owner so I may go ahead and yank it. I'm using the space for a Xantrex inverter and charge controller for my solar panels.

Any idea where the two little pipes on the back wall go? Or what they're for?
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  #5  
Old 06-01-2009
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Crit Bliss Crit Bliss is offline
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cruise may be inoperative because the magnets were slung off the drive shaft. Cost me $6 to make mine work again.
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