JimMadsen
Well-Known Member
- Joined
- April 1, 2012
- Messages
- 244
- Reaction score
- 3
- City, State
- Stafford Springs, CT
- Year, Model & Trim Level
- 2017 Ford Explorer XLT
Unless an '18 engine does something I don't understand, that does not look right. The radiator pressure valve to the tank should have been closed at the point where the engine was started, then open when the heated coolant expanded, increasing the level of coolant in the reservoir, then when the engine shuts off and the coolant contracts, then it sucks it back in from the coolant reservoir. Maybe I'm dating myself and that's no longer how it works, but seems like it has to because of the physics of expansion and contraction?
What about the marks on the tank? Doesn't it have a full cold and full hot mark, or at least one or the other so you can monitor whether it's losing coolant? If it is not losing coolant now/still, then possibly it is okay but I'd still wonder about that valve seeming to be staying open, as well as why it's being sucked in when revving the engine.
I still suspect you have a head gasket or block leak and it is both sucking coolant in and out the exhaust, and possibly putting exhaust out the tank. I do not understand how they can refuse to check further if it is losing coolant. Be sure to have it documented (proof) when you took it to them for this problem so they can't just screw around thinking the warranty will run out. Have it on a dated work order as the customer complaint.
Also you have some kind of squeak to the point of a squeal, I'd look into that, have that fixed as well.
The coolant was filled to the cold fill line after it was sitting for 8 hours and the video is about an hour after it was filled to the cold fill. I have a block tester (fluid and ball one) that I will use as soon as it cools some when she gets home tonight.
I will make sure she gets the papers to reflect that the initial complaint was the coolant level.