Hi there,
One more fellow with a question, after weeks of research, about flushing the coolant system with a garden hose so any help is definitely appreciated.
I have been working on refreshing the coolant system in the LX450 as it came with the wrong green coolant . The rig has around 232kmi in it and after spending a lot of time reading the FSM, this forum, the internet, watching youtube etc. I have decided to flush and refresh almost the entire coolant system with some new parts. The water bypass pipe above the thermostat housing is leaking but other than that, nothing has broken yet just preventive maintenance because of the mileage (232kmi), the hoses are far long gone and the radiator is about to crack big time.
So I drained the green coolant from both the petcock and through the engine drain plug, the fluid seemed to be somewhat new as it was pretty clean and clear with few minor thin chunks that came out of the engine block. Then I got the old "yellow about to fall apart" radiator with the big hoses out and the next step on the list is to flush the engine and that is why i'm writing in here today. Maybe someone can shed a light on the question.
I got distilled water to flush everything but since the radiator and hoses are out, I have decided to flush the system with a garden hose first to remove any gunk that could still be there (and to save the distilled water) and then flush everything again with the distilled water. I used the old rad. hose as an adaptor so I could insert the garden hose close to the thermostat housing and attached another old rad. hose to the outlet pipe so water doesn't fall on the alternator. See attached pic.
With everything connected and ready to go, I first turned on the garden hose just a tad so pressure doesn't blow water on the thermostat but enough to fill the pipe that goes to the thermostat, turned on the engine and waited. To my surprise, nothing came out of the outlet pipe and after some 5-10mins I start to hear a continuous beep like noise coming from the front of the engine bay maybe dry water pump. The beep sound was getting louder so I, of course, turned everything down and pause for more research. Everything looks fine and after some time I tried again but water wasn't been pulled through the system.
So the question is, how are you folks connecting the garden hose to flush the engine? Is there also a need to connect the garden hose to the heater pipe by the firewall to flush the heat system and engine block? Last but not least, after months researching the PHH replacement, is there a video or steps on how to replace that nasty little hose? I have found some material but nothing really effective. I will try to attack it as I'm working on the coolant system but man'o man.....that little guy is tough to reach and replace. From what I have seen, people say that the pipe connected to the heater valve control should be disconnected so the bottom portion where it connects to the metal pipe before the PHH can be disconnected. Only then, the little PHH can be disconnected. Does that sound like the way to go?
Any help is much appreciated. Thanks!
One more fellow with a question, after weeks of research, about flushing the coolant system with a garden hose so any help is definitely appreciated.
I have been working on refreshing the coolant system in the LX450 as it came with the wrong green coolant . The rig has around 232kmi in it and after spending a lot of time reading the FSM, this forum, the internet, watching youtube etc. I have decided to flush and refresh almost the entire coolant system with some new parts. The water bypass pipe above the thermostat housing is leaking but other than that, nothing has broken yet just preventive maintenance because of the mileage (232kmi), the hoses are far long gone and the radiator is about to crack big time.
So I drained the green coolant from both the petcock and through the engine drain plug, the fluid seemed to be somewhat new as it was pretty clean and clear with few minor thin chunks that came out of the engine block. Then I got the old "yellow about to fall apart" radiator with the big hoses out and the next step on the list is to flush the engine and that is why i'm writing in here today. Maybe someone can shed a light on the question.
I got distilled water to flush everything but since the radiator and hoses are out, I have decided to flush the system with a garden hose first to remove any gunk that could still be there (and to save the distilled water) and then flush everything again with the distilled water. I used the old rad. hose as an adaptor so I could insert the garden hose close to the thermostat housing and attached another old rad. hose to the outlet pipe so water doesn't fall on the alternator. See attached pic.
With everything connected and ready to go, I first turned on the garden hose just a tad so pressure doesn't blow water on the thermostat but enough to fill the pipe that goes to the thermostat, turned on the engine and waited. To my surprise, nothing came out of the outlet pipe and after some 5-10mins I start to hear a continuous beep like noise coming from the front of the engine bay maybe dry water pump. The beep sound was getting louder so I, of course, turned everything down and pause for more research. Everything looks fine and after some time I tried again but water wasn't been pulled through the system.
So the question is, how are you folks connecting the garden hose to flush the engine? Is there also a need to connect the garden hose to the heater pipe by the firewall to flush the heat system and engine block? Last but not least, after months researching the PHH replacement, is there a video or steps on how to replace that nasty little hose? I have found some material but nothing really effective. I will try to attack it as I'm working on the coolant system but man'o man.....that little guy is tough to reach and replace. From what I have seen, people say that the pipe connected to the heater valve control should be disconnected so the bottom portion where it connects to the metal pipe before the PHH can be disconnected. Only then, the little PHH can be disconnected. Does that sound like the way to go?
Any help is much appreciated. Thanks!
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