Replacing a Shurflo Pressure Switch

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1. I have a Shurflow pump on my West Marine oil extractor. Yesterday, it gave no suction when I went to drain the oil out of my truck. The unit runs and sounds absolutey normal, but does nothing. Could this be the pressure switch?
2. Could a simple pressure switch replacement fix this?
3. We use these pumps and it comes on and pumps through the line. But it builds no pressure. We have it running into a hose reel. It pushes fluid to the reel fine, but nothing out of the hose reel. My question is why is it not building pressure?
4. What is the part number for that rebuild kit???
5. No wasn't bought from your co. 
6. Porfavor en español y que Dios lo bendiga en el nombre de Jesus
7. When I first started using these pumps 13 years ago they were great and last , now I can't seem to get more than a month out of them before they fail . My northstar pump I bought for $60.00 has worked for over a year now and it was half as much as the suraflo.
   
   Guys what happened to the great product you used to make ??
8.  A questions by Jeff G. was mistakenly deleted.  Here's his question and our answer:  
   
   Jeff's Question:  If there is water leaking out of the switch area (the switch spring is rusted) does that mean the diaphragm has a leak?
   
   Our Answer:  It could be, but each pump is a different case.  If it is leaking from the pump head or switch he should check these three things:
    
   1. For loose screws at switch or pump head.
    2. Switch diaphragm ruptured or pinched
    3. For punctured diaphragm if fluid is present at bottom drain holes
    
   If you need help, just give us a call at 800-228-0905.
9. If you want to send me your email, I can forward you a Shurflo online catalog. Or call us at 800-228-0905 and we're happy to help you over the phone. 
10. Shurflo offers the bypass style pump that you've described. The “on-demand” reach a pressure setting and then shut off. The bypass style is constantly running. 
11. Shurflo offers the bypass style pump that does what you've described. The “on-demand” reach a pressure setting and then shut off. The bypass style is constantly running. I can send you the Shurflo catalog so you can find one that you want.
12. I don't want the 'on-demand' pressure dependent function, I want to run this pump constantly with a PWM controller and use a low duty cycle setting (I need a constant flow in a closed loop). Do you know if this is possible? Thanks very much
13. Excellent video