My water pressue gauge seems to be toast. Needle is all the way to the right and never moves. Maybe something froze over the winter?? Anyway, guess I need to look to replace. Do you think I just need the gauge head, or is there likely something down the road (towards the motor, or in it) that is broken? I have a 03 PIV. Quest gauge, but I havent pulled it to see what model or serial number. Suggestions? Chuck