Having problems with your briggs and straton 4.5 hp ?

pressure washer will not start unless trigger is pulled

also if you release the trigger while washing it shuts off

Answers :

Repair Help & Product Troubleshooting for briggs and straton 4.5 hp

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Suggested Questions/Answers :

I have a McCulloch FH160B power washer and it no longer builds up pressure. I haven't used this very much at all. I tore it apart and cleaned everything I could find. When i pull the trigger for the spray nozzle, I get line water pressure. When I release the trigger, the power washer sounds like it starts to build up pressure. When this was working correctly, the pump would shut off when the trigger was released. Any suggestions?


... McCulloch Pressure Washers

We have a Karcher G2500VH pressure washer. If you start the engine with the trigger pulled on the spray wand it will run at full pressure until you release the trigger. after that, when you pull the trigger it will not have any more pressure than the water hose feeding it. Does it have an internal unloader valve? What is the part number?


Hi, Karcher calls the unloader valve a spill valve, this is a link to a full drawing/parts listing , and your fault description might well be a sticking /seized unloader(spill ) valve hope this helps ... Karcher 2500 PSI Pressure Washer

I have a hoda pressure washer it stats right up and while i was cleanning the wood fence i let go of trigger during about 10 min, and the motor started dying i pulled the trigger and it pick right up again any ideal what would make that do that? but one time i let it quit and i couldn't get it started,i had to wait about 5 min. then it started back up again.thanks


A couple of things, what makes the engine change tone and revs is pressure, depending on the age, it may have excessive calcium build up in the pump, there may have also been a build up of crud or a wasps nest in the end of the hose when you connecte ... Devilbliss DeVILBISS Devap DVH2600 Gas-Powered Pressure Washer

I have a Briggs & Stratton gas power washer. This is the 1st time this year that I have used it. I put in fresh gas, hooked up the water supply. The engine started and then quickly stopped. I had to release the water pressure in the hose before I could pull start the engine. The only way to keep the engine running is to hold down the spray nozzle trigger. Once that is released the pressure in the hose builds up and the engine stops.


Sounds like the unloader is not working correctly. Try replacing it and see what happens. ... Briggs & Stratton Prosumer 20324 Gas Pressure Washer

2-yr old troy-bilt pressure washer with honda gcv160 engine. seems to run well, but when trigger is pulled get full pressure for less than 5 seconds before reducing to house water pressure. when left running, looks a black plastic pressure relief valve starts blasting hot water. appreciate whatever insight you can give. Thx


It sounds like an air lock. Try this: With the machine off, connect the hose to the washer and let it run for several minutes to get all of the air out of the hose, and to purge any air out of the pump. Shut off the water, and connect the high pre ... Briggs & Stratton Pressure Washers

Pressure Washer Purchased in 2001. Used about 30 hours. It is very hard to start if at all. Good gas, good spark plug. Sometimes it will start within 50-100 pulls. After getting started, if you release hose trigger it will cut off. Any suggestions of what else to do? Thanks in advance.


I would look into getting the carb rebuilt, sounds like there is some gummed up valves. ... Pressure Washers

I have a 5HP Honda engine installed on a Excell pressure washer. While the engine readily starts, it will not continue to run unless I keep the choke setting nearly completely closed. When I activate the pressure gun, it seems to generate adequate pressure, however, when the trigger is released, the engine continues to run at the same rpm instead of the normal variable rpm that most engines operate at during idling periods. The engine will always cease running when I push the choke rod all the w


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NO PRessure i have a Honda gcv160 5.5 dt2400cs CRANKS RUNS FINE AS LONG AS TRIGGER IS pulled to let water trough it has no pressure soon as you let go pressure starts building then it kills the motor will not run unless you hold handel


Hi It sounds to me like your unloader valve is stuck, this is the thing that is meant to move up and down when pressing the trigger.Please remove the unloader valve assembly and check for damage. If no damage is found then grease and lubricate this p ... Honda Pressure Washer PSI 3000

Briggs and Stratton pressure washer will not start. I have a 6.75 hp pressure washer that is only a year old. when I pull cord it turns over but does not start. I changed plug and checked it, I have spark when pulling. I have 40-50 psi of compression when pulling also. gas was drained and is brand new. it was working fine last time it was used. I have tried starting it without the water line or spray wand hooked up and no difference. After about 10 or 15 pulls, can smell gas when I am trying to


Hello dave, the problem is compression to low,you need 60 to 130 lbs to run engine,check for blown head gasket,or bad rings,or a stuck open valve,hope this helps,, ... Briggs & Stratton Pressure Washers

When I use my Karcher pressure washer it works perfectly until I release the trigger. Instead of remaining silent until I pull the trigger again the motor intermittently, at approx 2/3 second intervals, starts and stops. Could you please advise what is causing this to happen please.


What it is doing is keeping the pressure up in the hose. It is completely normal for it to do that. they all do it. Listen to others in use and it will do the same thing. Nothing to worry about. ... Karcher Pressure Washers

I have a Briggs Stratton Model# 020228 Gasoline Pressure washer with a Faip Brand Pump. The engine starts, the water supply goes thru the pump under its' own pressure. When I pull the trigger on the handle, there is not increase of force nor does the pump engage. I had this same problem several years ago and sent it to a dealer for service. His service tag indicated a stuck unloader. Where is the unloader located on this pump. The indentification on the pump is MTPV90736 191693 Order # 52


... Briggs & Stratton Pressure Washers

I have a 020293 Rev # 02, my pressure washer will start up but won't shoot with any pressure only a weak spray the same as if it was shut off and you pull the trigger.


... Briggs & Stratton Pressure Washers

My pressure washer will not start or stay running unless the trigger is open on the wand. The engine runs good until the trigger is released then the engine stalls instantly. what is worng and how do I fix?


... Briggs & Stratton 2200 PSI Gas Pressure Washer

I have a generac 2200 psi pressure washer. It starts and runs fine as long as I have the trigger pulled to spray water. When i let off the trigger it kills the engine. What could this be and how can I fix it? Model number is 01040-2


... Briggs & Stratton Briggs Stratton Pro Style Pressure Washer Gun Generac

PRESSURE WASHER RUNNING BUT NO WATER COMES OUT WHEN YOU PULL THE TRIGGER??? IT WORKED FINE WHEN I FIRST STARTED IT. I THEN SHUT IT OFF TO MOVE IT. WHEN I STARTED IT BACK UP, IT STOPPED WORKING.


The water admittance valve is stuck. The spring loaded valve lets more water into the pump when the pressure drops when you trigger the wand. Take the valve apart, clean the bore with crocus cloth on a dowel rod. Replace the O Rings and lube with ... Pressure Washers

Pressure washer won't start unless trigger is depressed


... Briggs & Stratton Prosumer 20324 Gas Pressure Washer

Home Depot has a lawn mower with the Honda GCV160 Electric start version engine. They also have a pressure washer with the Honda GCV160 engine. I have a disability that makes it difficult to pull the starter rope. I would like to get the electric start on the pressure washer. My local Honda bike shop service center said they use different blocks. Can I get a pressure washer pump mounted to the Honda GCV160 Electric start version engine? If necessary, are there adapter plates that can be purchase


... Karcher 2500 PSI Pressure Washer

2050 PSI Gas Pressure Washer - 20244: my excell pressure washer wont start. pull start t...


... Briggs & Stratton Gas Pressure Washer 20244

Pump Issue I have a john deere pressure washer. I hook the hose up to it, rurn the water on and no water comes out of the wand. I started the engine briefly and pulled the trigger on the wand and still nothing. The model number of the pump is Annovi Reverberi SJV 2.5G24-1. I can't seem to find any info on the G24? There is info on the G27-1. Not sure what to do here? Please help.


... Pressure Washers

My pressure washer will start, but when I pull the trigger it dies.


Hi , first thing to do is a full service on it , clean the air filter , clean the spark plug, check the oil , clean the inline guaze filter on the water inlet side , open the small screw on the bottom of the carb bowl and drain out any water that may ... Honda Pressure Washer PSI 3000

Just turned on my pressure washer model 580 676630 and as soon as i pulled the trigger to start spraying water shot out of a coupling underneath. It seems as if a heal has ruptured. Can this be repair


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I have a Honda pressure washer with Cat Pump 3dx29gsi, it runs rough when I pull the trigger and after 5 min of running, oil starts to spit out of small hole on red fill cap on pump


Sounds like you need to open the pump and inspect the pistons and seals. It appears that the seals & or pistons are worn and the water is by passing into the crankcase of the gear box. A sure sign oil coming out of the filler cap & the oi ... Caterpillar CAT Pump Pressure Washer Pump Oil

I have Honda pressure washer.Inorder to start the pressure washer you have to pull the cord. THe cord is stuck and I am not able to pull the cord. Why it and what should I do to start the washer.


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Honda GCV 160 5.5 pressure washer dies when I pull the gun trigger


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Pressure washer only starts and runs on full choke. throttle open. The pressure washer turns off when we press the trigger to start washing. Is this because the throttle isnt set high enough?


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