Originally Posted By: Donald
Flush it with water. Are you sure you need more than a water flush? Are you using tap water or distilled to mix with coolant for 50/50.
When it comes time for 50/50, that's the time to take one gallon DISTILLED water, one gallon Walmart MUST ADD WATER Ethylene Glycol antifreeze, and an empty jug of water, and make two jugs of 50/50.. Times past, if the car ever sealed up right, I would compensate whatever water In there with straight EG antifreeze? But, something always happened.
I usually flush with tap or garden hose water. I used to use distilled for flushing, but, why waste $5 or so.. it's flushing..
It's no surprise to mr. mk378 who is probably the best mechanic I have ever encountered here on the Interwebs, but, that car.. Flushing won't fix it. I tried, and tried hard.. and it runs.. but, it's still ticking.
The thermostat in this one failed.. so it wasn't a clog problem..
Still, though, I'm like the poster that tried household products and THOUGHT cleaning took place.
Some cars.. you never know what went in there. That's why I'm asking about chemical flushes.. it's like washing your mouth with water vs mouthwash vs going to a dentist.