7.3L burning water . . .
Thread Starter
|
Mountain Pass
Joined: Oct 2011
Posts: 208
Likes: 3
From: Cheyoming
7.3L burning water . . .
2001 F350 w/135K. Just put 1 1/2 gal coolant in it.
Should have been checked last oil change 2-3 thousand miles ago.
How or where can/does the 7.3L burn water?
Isn't there a O-ring on the injectors or something like that?
Should have been checked last oil change 2-3 thousand miles ago.
How or where can/does the 7.3L burn water?
Isn't there a O-ring on the injectors or something like that?
Hotshot
Joined: Nov 2006
Posts: 11,286
Likes: 263
From: North of Greenville
You can also lose coolant through leaking o-rings in your oil cooler on the driver side of the engine block. To check for coolant in your oil, just let the truck sit overnight and then drain about a pint out of the sump... if you have a brown "milkshake" looking substance (or even just plain coolant), then you will have identified a problem with those oil cooler o-rings.
Cargo Master
Joined: Jan 2002
Posts: 2,079
Likes: 11
From: LA and CO
Also, try running the truck for just a few minutes and then let it sit. Basically just enough time to get the coolant warm and expanding but not get the engine hot enough to evaporate it if it's simply spraying out somewhere. This situation has kicked my butt on more than a few occasions.
Hotshot
Joined: Nov 2006
Posts: 11,286
Likes: 263
From: North of Greenville
One other thing I found one time, after doing the Ranger mod (vacuum valve in the heater hose for positive shutoff when using my A/C)... I did the install during the summer and used the old conventional worm clamps. When everything cooled down (i.e. contracted due to cooler ambient temps) that fall/winter, I developed a slight oozing leak at one of the hose connections on the new valve. Was not enough of a leak to ever show on the driveway, but as the system got under pressure while I was driving around, it squirted out about 1.5 gallons over a couple months' time frame.
Thread Starter
|
Mountain Pass
Joined: Oct 2011
Posts: 208
Likes: 3
From: Cheyoming
Back again . . . just put another 1/2 gal. water in it. It dropped from "full cold" to "add cold".
That's 2 gallons in a little over a month! Oil is not "milkshakey", no visible leaks on ground or hoses/plumming.
Runs fine. Gas mileage seems normal . . . 12 - 15 MPG average.
That's 2 gallons in a little over a month! Oil is not "milkshakey", no visible leaks on ground or hoses/plumming.
Runs fine. Gas mileage seems normal . . . 12 - 15 MPG average.
Fleet Mechanic
Joined: Jul 2005
Posts: 1,800
Likes: 52
From: Southern Colorado
Consider pressure testing the cooling system with the engine cold. This often reveals hose connections that don't seal well when cold. Eventually, you will need to add more coolant additive, if you're not running an ELC coolant.
Trending Topics
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
Mine does this. I add and add, but it keeps landing on the same spot on the bottle. I know this because I marked the spot a couple of months back. The coolant level parks on the same spot, but anything added above that point must go on safari for the missing socks from the dryer or something.
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
Lead Driver
Joined: Jul 2003
Posts: 7,404
Likes: 52
From: Wheatland, Mo
Mine does this. I add and add, but it keeps landing on the same spot on the bottle. I know this because I marked the spot a couple of months back. The coolant level parks on the same spot, but anything added above that point must go on safari for the missing socks from the dryer or something.
Thread Starter
|
Mountain Pass
Joined: Oct 2011
Posts: 208
Likes: 3
From: Cheyoming
How do you do that?
Cargo Master
Joined: Jan 2002
Posts: 2,079
Likes: 11
From: LA and CO
Pressure test cold...
My old 6.4 had a leak that wouldn't show. But if you drove it for 10 mins it would. Anything over that and the coolant would evaporate off the side of the radiator before it spotted on the ground.
My old 6.4 had a leak that wouldn't show. But if you drove it for 10 mins it would. Anything over that and the coolant would evaporate off the side of the radiator before it spotted on the ground.
Thread Starter
|
Mountain Pass
Joined: Oct 2011
Posts: 208
Likes: 3
From: Cheyoming
That's what I would think. Dipstick is beautiful. (not my brother-in-law, the other one).
Thread
Thread Starter
Forum
Replies
Last Post
wycowboy
1994.5 - 1997 7.3L Power Stroke Diesel
6
Apr 6, 2013 09:16 AM