It is crystalized silica from not maintaining you cooling system.
Possible residue from some sort of radiator additive crap. I would flush the system out and maybe install a new radiator.
CITYLIFE404 answered 3 years ago
Most likely those auto zone stop leak that previous owner pored In and then sold it
This is what i found coming out of radiator hose when it bust open what is it and how did that get in there can anyone help
2007 Ford Expedition XLT
-
Maintenance & Repair
2003 Expedition with the 5.4 Triton engine. Removed the skid plate but the engine end of the lower hose is pretty much inaccessible. Maybe if I remove the oil filter I can remove the clamp. Any ti...
2003 Ford Expedition XLT FX4 Off-road 4WD
-
Maintenance & Repair
I have a used 2004 Expedition, the check engine light was on, change out the spark plugs (when doing so there were 5 different types of plugs!), and changed the ignitions coils (there were 4 differe...
2004 Ford Expedition
-
Maintenance & Repair
No water under vehicle after running air conditioner but there is water in tranny fluid and tranny fluid in radiator
1998 Ford Expedition 4 Dr Eddie Bauer SUV
-
Maintenance & Repair
We changed bulbs, fuses, and brake switch, but the lights still don't work. Also we have to leave gear in neutral because it gets stuck in park and won't come out. There is a flat metal wire in the st...
1997 Ford Expedition 4 Dr XLT 4WD SUV
-
Maintenance & Repair
CarGurus has 821 nationwide Expedition listings starting at $7,888.
Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.
