DA,
Greetings.
i would like to clean my intake valves in 2012 Honda Freed GB3 using the easiest way without dismantling anything (this car uses very similar L15A i-vtech as Jazz GE8 L15A),



I am looking at the PCV hose.... One end of the hose coming from the outlet of PCV valve in the engine block crankcase and the other end is going up to the point just below the intake manifold.


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If I spray to this end of PCV hose connection point (the one that just below the intake)....is it pointing directly to the intake valves' head ?

​​​​Thanks in advance
rgds
Kent

 

I would just pull the intake manifold,, you can do it in about 45 minutes to an hour. You run a very real chance of hydrolocking the motor, if your car is not direct injection, you can just start putting 1/2 a can per 10 gallons in the fuel tank each fill-up and it will get a lot of the carbon off the valves, but if you pull the intake manifold off just use a gun brush and carb cleaner the valves are VERY close to the port on the fit motor. Just rotate the motor so the valves are closed on the cylinder your working on.. I used a cheasy shop vac to suck the grunge out of the port, nothing in there will really hurt to go through the motor.. But it makes me feel better.. Oh and I have a 20' hose I use on the shop vac so it can sit outside and the vapors get pulled out of the garage.