Coolant Flush Troubles
Thread Starter
|
Posting Guru
Joined: Dec 2003
Posts: 2,392
Likes: 0
From: NW Arkansas
Coolant Flush Troubles
Did a water pump/coolant flush today.
New thermostat and upper neck from Ford.
Pulled the radator plug and driver side coolant plug. (Did not pull pass. side so I didn't soak my starter.
Put the plug back in and filled it up w/ water and then pulled the plug and drained it. After filling it up it was clear water coming out.
Pulled water pump, put new water pump, thermostat and neck on.
Added 4 gallons of Motorcraft ELC coolant and almost a full gallon of distilled water.
Warmed truck up and took it for a 10 mile drive. Let it idle for an hour.
Now the problem... the thermostat will not open.. I cannot put anymore water in.
What the H!!
Help anyone?
Thanks all
New thermostat and upper neck from Ford.
Pulled the radator plug and driver side coolant plug. (Did not pull pass. side so I didn't soak my starter.
Put the plug back in and filled it up w/ water and then pulled the plug and drained it. After filling it up it was clear water coming out.
Pulled water pump, put new water pump, thermostat and neck on.
Added 4 gallons of Motorcraft ELC coolant and almost a full gallon of distilled water.
Warmed truck up and took it for a 10 mile drive. Let it idle for an hour.
Now the problem... the thermostat will not open.. I cannot put anymore water in.
What the H!!
Help anyone?
Thanks all
Laughing Gas
Joined: Aug 2009
Posts: 1,192
Likes: 7
From: Belgrade, MT
Faulty t-stat?
I have heard alot of the aftermarket t-stats are bad out of the package. believe I read where someone here tested theres by dropping it in a pot of boiling water to see if it opens. That would be my best guess.
Tom
Tom
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 24
From: Damon (South East Texas)
I always leave the heater hose off the top of the waterpump to let the air escape while filling the reservoir. I connect the hose when the coolant just starts coming out. When I fill it up and let it warm up, I usually don't have to add much at all.
Did the truck try to overheat or are you just concerned with not getting any more coolant in there?
Did the truck try to overheat or are you just concerned with not getting any more coolant in there?
Thread Starter
|
Posting Guru
Joined: Dec 2003
Posts: 2,392
Likes: 0
From: NW Arkansas
Ford wouldn't have given me a short stem thermostat would they?
Senior User
Joined: Nov 2004
Posts: 399
Likes: 0
From: Draper, Utah
if it doesn't overheat then i would say that your t-stat is opening. you would heat up pretty quick if it wasn't. just keep an eye on it and keep it topped off and i think you will be fine.
Trending Topics
Thread Starter
|
Posting Guru
Joined: Dec 2003
Posts: 2,392
Likes: 0
From: NW Arkansas
Isn't it a problem that I have 4 gallons of concentrate ELC coolant and only 1 gallon of water?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
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
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 24
From: Damon (South East Texas)
The thermostat would still open, even if it was a short stem. It just wouldn't close the internal bypass hole in the W/P when it fully opened. What part number did they give you?
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 24
From: Damon (South East Texas)
Not if there was some water already trapped in the block from not draining the passenger side. Even when draining both sides of the block, I don't recall being able to get a full 8 gallons in there. I couldn't account for what stayed in the block.
Postmaster
Joined: Sep 2008
Posts: 3,220
Likes: 0
From: VA
Theres definitely still some in there from not draining the passenger side. I went through the same deal, but I just kept 2 gallons of distilled water in the truck and checked it once a day to make sure the level hadn't dropped.
