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- Aug 31, 2021
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Thank you everyone. I'll flush following RonD directions. Interesting about the vinegar, I wondered about using that, because I use it in other work to remove zinc plating from nuts, bolts, screws and to remove rust, so if there is build-up of rust from engine in the heater core that would make a whole lot of sense.
Before flush I am getting about 100F so that's low for sure.
RonD: One hose which has a valve on it, I can disconnect it on the heater core side of the valve, leaving a pigtail of hose out of the core (good, for flushing). It goes to a connection near the thermostat. The other hose, which goes to a point lower down than the other one, near the thermostat, has no place to disconnect it in its length because it is one solid piece, it can come off either at the heater core, or, at a place very hard to get to, so I wouldn't try taking it off there. What I was thinking is, disconnect that second hose at the heater core, then get a short piece of hose the right size and put on the core to aid in flushing, would make it a lot easier. Makes sense?
Before flush I am getting about 100F so that's low for sure.
RonD: One hose which has a valve on it, I can disconnect it on the heater core side of the valve, leaving a pigtail of hose out of the core (good, for flushing). It goes to a connection near the thermostat. The other hose, which goes to a point lower down than the other one, near the thermostat, has no place to disconnect it in its length because it is one solid piece, it can come off either at the heater core, or, at a place very hard to get to, so I wouldn't try taking it off there. What I was thinking is, disconnect that second hose at the heater core, then get a short piece of hose the right size and put on the core to aid in flushing, would make it a lot easier. Makes sense?
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