Join Date: Feb 2007
Nominated 16 Times in 67 Posts
TOTW/F/M Award(s): 28
Thanked 5,199 Times in 4,711 Posts
Could either be down to a blocked jet or pipe but there is also the possibility of dirt or gunge inside the pump - one pump serves both front and rear.
You could try flushing the reservoir with hot water (hand hot) as sometimes that can help the gunge dissolve
Currently in madnoel10's garage:
Honda Civic 1.4l