Hi there i seem to have a problem with my shower it was working fine but now its running like a driping tap ther is to presher and its not the head because its the same with the head off

The boiler is clogged or has a hole in it.

you do not have the water presher for the shower head at that the height you have it you may have to get a water pump from b&q or ebay

Check the diffuser and screen, try swapping them around to make sure that is the problem. If that is not he problem then the tubes from the exchangers need to be descaled.

SHUT OFF THE WATER SUPPLY VALVE BEHIND THE SHOWER.THOSE HANDLES ARE DIFFICULT TO REMOVE,SQUIRT WD-40,LET IT SOAK IN,THEN GIVE IT A LITTLE TAP ON THE HANDLE ,BE CAREFUL NOT TO DAMAGE IT.IF YOU CAN NOT STILL REMOVE THE HANDLE,THEY SELL A HANDLE PULLER,

Usually whenever you do any repairs on plumbing, you dislodge calcium from the inner surfaces of teh plumbing. Check to see if ther is a mesh filter in the inlet side of the head. and remove and clean it. otherwise you could remove it and use a vacuum yo try and remove any deposit that may be in it. If that is unsuccessful,
you can always return it, but always remember to open the fawcett and run it before installing the head.
This is an essential part of any plumbing job. Good luck

. If your local store refuse to replace it Moen will gladly do so with no problem.

They are good like that.

Hi, the reason for no water is you have picked up dirt and sediment in the lines when they turn you back on.You will find aerater on faucets to unscrew and clean the screens, try taking the end of the shower head off to clean out the sediment. This is the reason for no pressure. You may have to wrench the head completely off to clean it. Good Luck,
Shastalaker7
Ps, After removing it, let the water run to clean the pipes and flush the water heater.

Sounds like the pipe going to the shower head is vibrating. Not secured tightly indige the wall. That is about the only thing it could be in my opinion. Hope this helps you out .
Kurt

it is common in cavaliers and malibus but i would check the radiator (maybe even flush it) it might help, and i would repace coolant with DEX-COOL.

pump needs attention and the heating element has burnt out
pump needs water to run and the heater element needs water to keep it cool

where the pipes are laid out it may run along an outer wall and the cold weather is cooling the water before it gets to the shower try to track the pipe from your water heater to your shower and insulate it where it is coldest