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Kodiak 4000 electric pressure washer

Will not run constant, pulsating

Posted by Anonymous on

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  • 2 Answers

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Posted on Jan 02, 2017

  • 242 Answers

SOURCE: pressure washer is pulsating when powered on

it just the presure building back up ,it will last years doing this,i would not worrie as replacing the presure pump will only be a temp fix and it will do it again ,most washes do this after a year or lots of use.

Posted on Dec 31, 2009

  • 108 Answers

SOURCE: 1750 psi Electric Pressure Washer: My pressure washer is losing pressure and is pulsa...

I have d'same problem before. replace the head component with the 3 little cylinders,springs etc.. its a 1 piece part.

Posted on May 06, 2010

  • 68 Answers

SOURCE: Pressure washer pulsates

Could well be the main jet slightly blocked in the carburettor.

Posted on Jun 10, 2010

SOURCE: I have a karcher K3.97m electric pressure washer. The unit constantly runs and never shutoffs. I after flipping the power switch. What could be worng?

Someone has hard wired the switch to always run because the switch was apparently bad at one time and in order for it to work they just wired it up straight. Remember to rate my solution Thanks in advance

Posted on Apr 27, 2012

  • 1383 Answers

SOURCE: landa pressure washer LT 4035-4000 psi. Why is it losing pressure and continually pulsating?

If the pump is pulsating rapidly most likely valves are leaking or debris under valve keeping one or more from closing. If the pump pulsates slowly, comes up to pressure then low pressure then repeats, problem is pressure regulator /bypass. Or you could have a combination of both. Try lowering the pressure to lowest setting to see if slow pulsation stops. As parts age within pump and debris hinder operation you can no longer operate at full pressure. To make the pump last, use highest pressure as needed and everyday work using only 60 to 75 percent of capacity.

Posted on Mar 19, 2013

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1 Answer

My K5.55 has pressure loss and judders while running. Vibrations are transmitted to the discharge hose. I need to adjust the wand constantly to get enough pressure.


Change oil, spark plug and clean/replace air filter. Do u have a choke adjustment, most have automatic govenors nowadays. Clean water hose intake screen.

May 03, 2016 | Garden

1 Answer

Kodiak manual


www.ppe-pressure-washer-parts.com/kodiak-pressure-washer-parts
NOTE: We are not KODIAK or affiliated with them. We did not sell these Pressure Washersbut do offer some parts that will fit them.

As close as I could fine. A hard one.

May 20, 2014 | Garden

1 Answer

Landa pressure washer LT 4035-4000 psi. Why is it losing pressure and continually pulsating?


If the pump is pulsating rapidly most likely valves are leaking or debris under valve keeping one or more from closing. If the pump pulsates slowly, comes up to pressure then low pressure then repeats, problem is pressure regulator /bypass. Or you could have a combination of both. Try lowering the pressure to lowest setting to see if slow pulsation stops. As parts age within pump and debris hinder operation you can no longer operate at full pressure. To make the pump last, use highest pressure as needed and everyday work using only 60 to 75 percent of capacity.

Mar 19, 2013 | Garden

1 Answer

Pressure pump keeps pulsating when trigger not pressed


There is orobably a minor water leak on the output side of the pump. The pump is sensing a pressure drop due to the leak so it will run for short periods to maintain the pressure i the output line.

Aug 20, 2010 | Karcher PSI Electric Pressure Washer

2 Answers

1750 psi Electric Pressure Washer: My pressure washer is losing pressure and is pulsa...


I have d'same problem before. replace the head component with the 3 little cylinders,springs etc.. its a 1 piece part.

May 06, 2010 | Karcher 1750 psi Electric Pressure Washer

2 Answers

I have a Kew Hobby 80. The output from the lance is not constant but pulsates.


Could be the input water pressure is not sufficient. There is a pressure valve inside the machine that will cut off the motor if input pressure is too low or non existent.

Try a different source for the water input.

Feb 22, 2010 | Karcher PSI Electric Pressure Washer

1 Answer

Pressure washer is pulsating when powered on


it just the presure building back up ,it will last years doing this,i would not worrie as replacing the presure pump will only be a temp fix and it will do it again ,most washes do this after a year or lots of use.

Dec 31, 2009 | Karcher 1750 psi Electric Pressure Washer

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