<!-- from fixya rte -->Keep running won't stop at max psi - Dewalt D55168 Heavy Duty 15 Gallon Heavy Duty Wheeled Portable Workshop Compressor

Loosen the carb bowl nut until it begins leaking into the shallow clear glass bowl you placed beneath it. It may take a minute to have drained the water out of the bowl and another minute or so to get some more from the gas tank. With the glass bowl you will be able to see the water in the bottom and gas floating on top of it. When you see the gas on top then tighten the bowl nut and try to crank. (Choking helps draw out water still in carb) Return gas collected. to tank but do not let the water go back in.

Clean it up real well and try again. Most likely the oil is from the motor being put in a position that allows the oil to run into spots that it is not supposed to be in.

Check your Fuel Pressure and if that is good (over 40 psi)

then check your Idle Air Control (IAC) Valve

and seeing that it is a Mid-90's Chevy.. MAF Sensor is going bad.

If you UNPLUG your MAF and see what happens.... MAF is in the Air Intake with a 4 wire...

you may have max fuel pressure when the engine is not running because the pressure regulator( if its a vacuum regulator ) does not have vacuum until the engine is running (they increase fuel pressure as vacuum decreases) to answer the question the fuel pressure even at maximum will not keep the injectors from firing

Hi
your pressure switch is bad. so it isnt cutting off the compressor. the part number is N003306SV and can be obtained from Dewalt on Servicenet.
Detail

Good luck and hope this helps

Your engine produces max horsepower at 3600 rpm. The engine throttle should be set to max before you pull trigger. Pressure washes generally do not have automatic throttle. You do not have to use max power, but enough power to keep the engine running when trigger is pulled. You washer will actually last longer if you only use about 75% of rated capacity. Good luck

It sounds like the compressor is reaching the max psi it can hold. At this point can you use a air tool or blower? The reason it comes back on is to keep the psi at running level. It replentishes the lost or used air.

Good luck!

Bruce

70-80 PSI cold. It will increase as you drive and also with the load you put onto them.

Well change your airfilterchange plugs and wires and air your tire up to like if they are a max 35 psi tire have 32-35 psi in them but if its a max 44psi tire keep at least 38-40 psi in them and some car tires are even as high as 51 psi keep at least 46-48 psi in these tires it will tell you on the side of the tire don't go on what the door panel sticker says for air.

make sure that the tires are the ones on sticker for the psi other sizes require a different psi ask a tire store for the correct psi