No coolant?? ...no problem! - Ford Powerstroke Diesel Forum
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Old 07-05-2014, 02:45 PM
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No coolant?? ...no problem!

Replaced my water pump yesterday along with the upper/lower hoses. Today I went for a test drive and about 10 miles into this test drive I start to overheat. I pull over and discover that the lower radiator hose popped off. I then realize that I made a critical error: I neglected to tighten down the lower hose clamp. All of my coolant drained out onto the pavement. Being that I live in a rural area with little to no people/cell phone coverage I decided to limp home. I made it almost home when the "Engine Temp" light came on. I immediately pulled over, shut off the engine and sat there for a few minutes. At this point I'm only a couple miles away from home. I start back up and make it the rest of the way (the "engine temp" light went out after starting). When I got home I topped off the coolant system with mostly distilled water and one bottle of coolant (It was all that I had left over).

I *think* I dodged a bullet but I have a few questions...

Being that there was literally NO COOLANT in the system for several miles just how accurate would the temp gauge be?? ....Maybe my engine was way hotter than the gauge said?

What type of damage could have been caused? ...anything I should be on the look out for?

Thanks in advance.
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Old 07-05-2014, 04:50 PM
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Engine would be WAY hotter than the temp gauge was reading with no coolant. Cross your fingers and HOPE you didn't do some Serious damage
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Old 07-05-2014, 05:13 PM
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You should have idled it with no coolant rather then shutting down, at least to get it back down some before shut down
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Old 07-06-2014, 05:42 AM
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I don't think idling would of done ANYTHING to cool it off with no coolant
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Old 07-06-2014, 07:59 AM
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It's what I was told to do when my radiator decided to dump EVERYTHING in downtown San Diego couple years back
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Old 07-06-2014, 12:20 PM
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Air cooled doesnt work in a liquid cooled engine. With the engine idling it is still generating heat. You can cook an engine just the same idling it with no coolant the same as driving it with no coolant
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Old 07-06-2014, 12:38 PM
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I'm with Brad 100% these engines will cook at idle with no coolant as will most any liquid cooled motor I have ever encountered

and that motor was frigging hot
the sensor sits in the coolant and reads it just sitting in a void of air isn't going to do much maybe pic up the temp of the passing steam at best

that was just a terrible idea IMHO but if it was a chance you were willing to take to avoid walking then whatever it's your motor

Last edited by ZMANN; 07-06-2014 at 12:41 PM.
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Old 07-06-2014, 02:57 PM
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Quote:
Originally Posted by ZMANN View Post
that was just a terrible idea IMHO but if it was a chance you were willing to take to avoid walking then whatever it's your motor
Motor is fine, thanks.
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Old 07-06-2014, 03:02 PM
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Quote:
Motor is fine
you don't know that for a fact since you couldn't monitor the actual temps

and many components are affected by excessive heat
you could have hardened oil seals/degraded the oil ETC

maybe you got lucky? maybe you didn't? and just don't know it yet?

this is not good advice
Quote:
No coolant?? ...no problem!
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Old 07-06-2014, 03:10 PM
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Quote:
Originally Posted by ZMANN View Post
you don't know that for a fact since you couldn't monitor the actual temps

and many components are affected by excessive heat
you could have hardened oil seals/degraded the oil ETC

maybe you got lucky? maybe you didn't? and just don't know it yet?

this is not good advice
I wasn't giving advice ...it was tongue n' cheek, I thought that would have been obvious to most people here. But just in case: It is not a good idea to drive your truck with out coolant

Only time will tell if all is well.

Thanks everyone!
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