Hot temps....no coolant. help.
Thread Starter
|
Senior User
Joined: Nov 2013
Posts: 286
Likes: 0
Hot temps....no coolant. help.
Hey all,
Im looking for some insight on an issue before I lose sleep over head gaskets.
Headed out today in the truck, and no heat whatsoever. Im thinking maybe a vacuum issue, but 4wd (esof) and all vents move just fine. About 10 miles in I over heated at 236 ect. After cracking the coolant cap there was no coolant. I havent actively monitored it but last i checked was fine.
The exhaust doesnt smell sweet and I see no puddles or any evidence of coolant splatter before today when i refilled it today. There was some tonight but im thinking that's from me spilling some today. Egr is also blocked off.
What are your guy's first thoughts on tackling it? I need the truck soon for plowing so need this resolved asap.
Im looking for some insight on an issue before I lose sleep over head gaskets.
Headed out today in the truck, and no heat whatsoever. Im thinking maybe a vacuum issue, but 4wd (esof) and all vents move just fine. About 10 miles in I over heated at 236 ect. After cracking the coolant cap there was no coolant. I havent actively monitored it but last i checked was fine.
The exhaust doesnt smell sweet and I see no puddles or any evidence of coolant splatter before today when i refilled it today. There was some tonight but im thinking that's from me spilling some today. Egr is also blocked off.
What are your guy's first thoughts on tackling it? I need the truck soon for plowing so need this resolved asap.
Logistics Pro
Joined: Feb 2013
Posts: 4,073
Likes: 5
From: TX
Hot temps....no coolant. help.
My first choice would be head gaskets but.....
Was the coolant puked out of the degas bottle?
Do you monitor live data with anything?
I did just have the same issue with no heat and major puking. Changed my tstat and put a new degas cap on and all is well.
Was the coolant puked out of the degas bottle?
Do you monitor live data with anything?
I did just have the same issue with no heat and major puking. Changed my tstat and put a new degas cap on and all is well.
Thread Starter
|
Senior User
Joined: Nov 2013
Posts: 286
Likes: 0
I moniter data with an SCT livewire.
I would be very happy if i could replace a couple parts but my gut isnt telling me that.
Logistics Pro
Joined: Feb 2013
Posts: 4,073
Likes: 5
From: TX
Hot temps....no coolant. help.
So what were your ect and eot temps?
Reason I ask is if the oil temp was close to 300 you'll need to look at the oil filter stand pipe to make sure it didn't melt. I would think if it didn't puke you may have a leak. Is your egr valve plugged in? Did your fan ramp up?
Reason I ask is if the oil temp was close to 300 you'll need to look at the oil filter stand pipe to make sure it didn't melt. I would think if it didn't puke you may have a leak. Is your egr valve plugged in? Did your fan ramp up?
Logistics Pro
Joined: Feb 2013
Posts: 4,073
Likes: 5
From: TX
Trending Topics
More Turbo
Joined: May 2015
Posts: 670
Likes: 13
From: Nampa, ID
Stock EGR cooler? Low coolant level and/or excessive (stuck) EGR can boil coolant out of the system. You have it plugged in, right? Unplugging the EGR valve interferes with clutch fan operation.
Did you hear the fan roaring when the truck started running hot? It should have been unmistakable once it got around 220f.
Are you sure you're not leaking coolant somewhere? I'm dealing with either a lower radiator hose or radiator slow leak myself currently. There's a puddle of coolant under the truck after every time i park it.
How long has it been since you changed your t-stat? It's not common, but they can stick shut. They are supposed to fail open, but I've seen 1 or 2 fail closed.
It also wouldn't hurt to make sure there isn't significant blockage between the various radiators. Best case scenario, you just need to clean out the stuff behind the grill. Worst case, head gaskets.
Did you hear the fan roaring when the truck started running hot? It should have been unmistakable once it got around 220f.
Are you sure you're not leaking coolant somewhere? I'm dealing with either a lower radiator hose or radiator slow leak myself currently. There's a puddle of coolant under the truck after every time i park it.
How long has it been since you changed your t-stat? It's not common, but they can stick shut. They are supposed to fail open, but I've seen 1 or 2 fail closed.
It also wouldn't hurt to make sure there isn't significant blockage between the various radiators. Best case scenario, you just need to clean out the stuff behind the grill. Worst case, head gaskets.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Thread Starter
|
Senior User
Joined: Nov 2013
Posts: 286
Likes: 0
Stock EGR cooler? Low coolant level and/or excessive (stuck) EGR can boil coolant out of the system. You have it plugged in, right? Unplugging the EGR valve interferes with clutch fan operation.
Did you hear the fan roaring when the truck started running hot? It should have been unmistakable once it got around 220f.
Are you sure you're not leaking coolant somewhere? I'm dealing with either a lower radiator hose or radiator slow leak myself currently. There's a puddle of coolant under the truck after every time i park it.
How long has it been since you changed your t-stat? It's not common, but they can stick shut. They are supposed to fail open, but I've seen 1 or 2 fail closed.
It also wouldn't hurt to make sure there isn't significant blockage between the various radiators. Best case scenario, you just need to clean out the stuff behind the grill. Worst case, head gaskets.
Did you hear the fan roaring when the truck started running hot? It should have been unmistakable once it got around 220f.
Are you sure you're not leaking coolant somewhere? I'm dealing with either a lower radiator hose or radiator slow leak myself currently. There's a puddle of coolant under the truck after every time i park it.
How long has it been since you changed your t-stat? It's not common, but they can stick shut. They are supposed to fail open, but I've seen 1 or 2 fail closed.
It also wouldn't hurt to make sure there isn't significant blockage between the various radiators. Best case scenario, you just need to clean out the stuff behind the grill. Worst case, head gaskets.
The fan came on as it should.
Today i got the truck up to temp and looked at all the heater and rad hoses and i cant see a leak anywhere and there is no puddle ever which is really what id like to see so i would have an answer that didnt say head gasket.
I dont think its a t-stat because today when i went for a drive id nail it, watch the coolant temp rise then come right back down. Never got anove 182.
I did a visual check of all radiators per your suggestion and didnt see anything thay would block flow.
The fact that today i dont have any symptoms is getting to me...WHERE DID THAT COOLANT GO?
i wonder if it would benefit to pressure test the coolant system; low pressure suggests a leak and high pressure suggest a head gasket. Does anyone know where i could buy this said tool?
Many thanks to everyone participating, i need some fte therapy right about now.
Logistics Pro
Joined: Feb 2013
Posts: 4,073
Likes: 5
From: TX
Very odd to have the oil temp at 22. You may have more than one thing going on here.
May have a bad oil temp sensor. You could try switching the coolant temp and oil temp sensor and see if it follows but your biggest thing is the coolant loss. Can you find any external leaks anywhere? The heater valve, waterpump, rad hoses?
Sorry--missed your last post--yes I would do a pressure test.
May have a bad oil temp sensor. You could try switching the coolant temp and oil temp sensor and see if it follows but your biggest thing is the coolant loss. Can you find any external leaks anywhere? The heater valve, waterpump, rad hoses?
Sorry--missed your last post--yes I would do a pressure test.
Thread Starter
|
Senior User
Joined: Nov 2013
Posts: 286
Likes: 0
Very odd to have the oil temp at 22. You may have more than one thing going on here.
May have a bad oil temp sensor. You could try switching the coolant temp and oil temp sensor and see if it follows but your biggest thing is the coolant loss. Can you find any external leaks anywhere? The heater valve, waterpump, rad hoses?
Sorry--missed your last post--yes I would do a pressure test.
May have a bad oil temp sensor. You could try switching the coolant temp and oil temp sensor and see if it follows but your biggest thing is the coolant loss. Can you find any external leaks anywhere? The heater valve, waterpump, rad hoses?
Sorry--missed your last post--yes I would do a pressure test.
Ive been desperately looking for a leak in any coolant holding lines but have not found anything. Dealership quoted me around 2500 in labor for gaskets, does that sound correct?
I gotthe quote just to keep in the backof my head, im not in a position right now to shell that being its right before the holiday season.
Logistics Pro
Joined: Feb 2013
Posts: 4,073
Likes: 5
From: TX
I may have misread the temp I took it at ECT 236 and EOT 22. But you're actually saying the EOT was two hundred and something. Not seeing visible signs of coolant leaks it leaves just about only one other scenario--it went out of the tailpipe which would be hg. Also--just a thought--the egr cooler block off may have failed? I just keeping coming back to the EOT actual temp when you saw the ECT at 236. You could also have a bad oil cooler as well.
Thread Starter
|
Senior User
Joined: Nov 2013
Posts: 286
Likes: 0
I may have misread the temp I took it at ECT 236 and EOT 22. But you're actually saying the EOT was two hundred and something. Not seeing visible signs of coolant leaks it leaves just about only one other scenario--it went out of the tailpipe which would be hg. Also--just a thought--the egr cooler block off may have failed? I just keeping coming back to the EOT actual temp when you saw the ECT at 236. You could also have a bad oil cooler as well.
Yes, I mean eot is 2 hundred twenty something, I should have been more clear.
Even in my paraniod mind, I can't smell coolant at the tailpipe, or see any sign of it on the exhaust end. New oil cooler was put in just over a month ago and had a coolant flush at that time also.
Part of me wants to run it a couple weeks and just moniter the truck very closely, but this truck is my main source of income in the winter for plowing, and for it to need head gaskets DURING the plow season means very bad things for me. So realistically I have a 2 week window before I need to be totally green light and confident.
