stinkhorn88
New Member
- Joined
- Dec 15, 2017
- Messages
- 5
- Reaction score
- 0
- Points
- 0
- Vehicle Year
- 1999
- Make / Model
- Ranger
- Transmission
- Manual
1999 3.0L
I've owned it for a year. Heat no work-y recent development.
One of the first things I did when I bought it a year ago was flush the whole coolant system (drain, ran to hot with just water/drain X3, fill).
This fall I replaced the water pump.
symptoms now - engine/coolant warms up to normal temps, after running ONE of the two hoses going to the heater core is hot, the other is cold.
my understanding is it's probably: clogged heater core OR non-functioning heater valve (or both)
this video on how to back flush happens to be pretty much the same vehicle
https://www.youtube.com/watch?v=M9SIafVsqyc
BUT in his truck, the passenger side hose (with the valve) is the hot hose and the drivers side hose is the cold one. in my truck it's the opposite - the hot side is the drivers side with out the valve.
some posts have suggested just swapping the two hoses to reverse the flow in the core, but that leaves the crap somewhere in the system. ARE the hoses swappable in trucks with the heater control valve? Does it NOT matter which one is where?? What is the valve's purpose?
I've owned it for a year. Heat no work-y recent development.
One of the first things I did when I bought it a year ago was flush the whole coolant system (drain, ran to hot with just water/drain X3, fill).
This fall I replaced the water pump.
symptoms now - engine/coolant warms up to normal temps, after running ONE of the two hoses going to the heater core is hot, the other is cold.
my understanding is it's probably: clogged heater core OR non-functioning heater valve (or both)
this video on how to back flush happens to be pretty much the same vehicle
https://www.youtube.com/watch?v=M9SIafVsqyc
BUT in his truck, the passenger side hose (with the valve) is the hot hose and the drivers side hose is the cold one. in my truck it's the opposite - the hot side is the drivers side with out the valve.
some posts have suggested just swapping the two hoses to reverse the flow in the core, but that leaves the crap somewhere in the system. ARE the hoses swappable in trucks with the heater control valve? Does it NOT matter which one is where?? What is the valve's purpose?
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