The present invention 10 discloses a portable spraying apparatus for motor vehicles comprised of a source of water 16, a pump 18 for pressurizing the water, and conduit 20 having a plurality of water outlet apertures 50 therein positioned substantially horizontal to the undercarriage. The portable spraying apparatus for motor vehicles 12 has spaced apart conduit 20 positioned under the vehicle to produce a vigorous spray 42 at the undercarriage 44. The conduit 20 is positioned parallel to the vehicle 12 having conduit positioned adjacent the vehicle with risers 30 for cleaning the exterior sides 46 and wheel wells 48 and under the vehicle with multiple apertures 50 positioned to deliver a spray 42 from 90 to 30 degrees relative to the horizontal. Positioned within the conduit 20 and forming an integral part therewith is at least one connective member 38 having threaded distal ends whereby rotation of one member relative to another can occur to compensate for uneven ground.