Got heaters and antifreeze changed in Ford

David G

Well-known Member
I had one of two block heaters seeping in my Ford 6610 Diesel.

I drained the antifreeze out today and changed them. There was a little corrosion around the hole that they fit it. The holes cleaned up nicely with emery cloth, I put a little grease on and the new ones slid in nicely. The antifreeze was 10 years old, so I changed it with new cool guard. The anti cavitation additive in the new stuff is supposed to be good for four years, so I should be fine on that. I warmed it up, topped it off, then will do it once more tomorrow to get it completely full.

I plugged both heaters in quickly to the AC before installing, then after they were installed to make sure they did not trip the GFCI breaker. I would rather find a bad one before refilling the antifreeze.
 
I should prolly do the same, change the coolant in my 4610, I put on a lower radiator hose heater in 08 and put in new antifreeze then.
 
The test kit was $25 for 10 strips from JD, that was about the cost of half my antifreeze, so just changed it.
 
David just get the additive and use it annually. It is small blue colored bottle. It puts all the anti cavitation and rust inhibitors back In the anti-freeze.

When installing something with o-rings on it, like your heaters, either use soap or silicone spray lubricant. The grease can actually damage the o-ring.
 
With the new cool guard you do not need it. On an annual basis after this I think it is 4 ounces for every five gallons of coolant. The bottle tells you the rate.
 
Go to Napa. I bought a bottle of 50 strip or something like that. It wasn't bad. I bought a gallon of additive. Tomorrow everything gets a checkup.
 
The strips I use need the coolant to be between 50and 150 degrees. Do these others need to be warm ? I would like to find some that are cheaper than what I am using. I have been using the ones from Baldwin. Get 4 strips with chart for about 6 dollars.
 

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