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coolant flush questions

87RangerXLTct

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Vehicle Year
1987
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Ford
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So I was testing my coolant for freeze and boiling point, and noticed it was brown. Had to do a ect and new tstat so figured now would be a good time to flush. Couldn't locate the coolant plugs on each side of the block so I went ahead and put the new tstat on was just going to flush the system with one of those prestone kits on a heater hose. As of right now I back flushed the heater core flushed the radiator and installed the new ect and tstat, wondering how I should go about flushing the remaining coolant out of the block. Anyone have a picture/location of the drain plugs on the block? I had bought some bar's 10 minute coolant flush cleaner as well when should I add that? All these coolant flush videos on youtube have me confused. I could bypass the thermostat by tapping into the heater hose on the injection manifold and running water through it, could I just remove lower radiator hose and let it flush out that way?
 


87RangerXLTct

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Ford
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Manual
can anyone tell me where the coolant drain plugs are on the engine? There are a few npt plugs on both sides of the engine, don't want to remove the wrong ones...
 

trail B2

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I don't know of any drain plugs.I usually pull off the bottom hose.Flush the block every way to can.
 

bigfatloser

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Temporarely remove t-stat, reassemble and flush with the prestone connections.
 

Chris102371

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1988
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Ford
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Automatic
Theres a drain plug on each side of the block,they are hard to see. On left side it s above the oil sensor,on right side it is above and to the right of the oil filter housing.
 

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