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As already mentioned in my previous post you may have to get in behind the front rear wheel arch liners. It is well known for them to become blocked with crud at the lower end.
One other thing you could try is using a piece of stretchy curtain wire and slighlty uncoil one end into a mini cork-screw. As you insert it down the tube keep turning it in one direction and it may soften the blockage. Don't force it or you may pierce or dislocate the tubing. Under no circumstances be tempted to use compressed air or water pressure as there is the liklihood of blowing the hoses off
Currently in madnoel10's garage:
Honda Civic 1.4l