The front wiper sprays.then when i go to spray the rear wiper nothing, but a puddle on the ground. Does anybody have a clue what could be the problem,Or have a diagram.

 

Does it not come out of the nozzle that is on the rear wiper blade? If it is coming out of the bottom of the rear lift window or liftgate, then you likely have a broken fitting inside the rear lift window or lift gate.

 

If no spray from rear nozzle; open tail or lift gate, pop off the bottom trim piece at the "bed" carpet edge, look into the access hole for the wiring and you will find the washer line. Usually the hose just comes off the elbow, but you may have to splice in a new section of hose. Easy fix.

 

I agree with Christine and Lanny.

On my liftgate, it was the same problem with puddling. The fix was just to the right of the rear ceiling cargo light. Popped that trim down, and added some newer tubing, since my old stiff had split. Works great 4+ years later...now to get my rear wiper motor back to working order.