Coolant leak - Ford Powerstroke Diesel Forum
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post #1 of 11 Old 02-21-2013, 07:12 PM Thread Starter
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Question Coolant leak

I own a 2000 F250 with a 7.3. I have a coolant leak that is driving us nuts. Checked all hoses,done a pressure test on the system,and the only leak found was the hose between the radiator and overflow tank which was replaced. Stil leaking. Anyone have any suggestions ? Thanks.
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post #2 of 11 Old 02-21-2013, 07:27 PM
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Are you just missing coolant or is there antifreeze on the ground?

99 F350 4x4 7.3 6 speed w/480K
02 F250 4x4 7.3 Auto w/490K
00 Excursion 4x4 V10 w/140K
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post #3 of 11 Old 02-22-2013, 03:05 AM
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water pump weep hole was my culprit.


2000 DRW CC 7.3
Exterior: 08 Exterior Clone, 22.5's
Engine Mods: GTP38R WW2, 5 inch exhaust,T500, 6637, TW tunes,DI Up pipes, 6.7 fuel pump fuel system.
Trans Mods: 6.0 trans cooler, JW Valve body,Billet triple disc converter.
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Misc:dieselsite coolant filter, max ac assist, BRV, IHD,gauges, CCV

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post #4 of 11 Old 02-22-2013, 03:32 AM Thread Starter
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Antifreeze on the ground under the front of the oil pan. Did you have to change out the water pump ? This is my first diesel so I am learning on the fly. Thanks.
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post #5 of 11 Old 02-22-2013, 04:22 AM
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Quote:
Originally Posted by JLimb View Post
Antifreeze on the ground under the front of the oil pan. Did you have to change out the water pump ? This is my first diesel so I am learning on the fly. Thanks.
Yeah. I had unknown coolant loss for a while. I thought it was getting into my oil, but after I replaced the water pump I got a good look at the weep hole and it was all stained up from coolant leaking for a while. I went with dieselsite's water pump, good price and lifetime warrenty.


2000 DRW CC 7.3
Exterior: 08 Exterior Clone, 22.5's
Engine Mods: GTP38R WW2, 5 inch exhaust,T500, 6637, TW tunes,DI Up pipes, 6.7 fuel pump fuel system.
Trans Mods: 6.0 trans cooler, JW Valve body,Billet triple disc converter.
Sound Mods: 7" flip out tv, 3-way speakers all around, 12" sub, 500 watt amp.
Misc:dieselsite coolant filter, max ac assist, BRV, IHD,gauges, CCV

Next up power rear window
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post #6 of 11 Old 02-22-2013, 07:21 PM Thread Starter
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I got under the truck today. Nothing leaked out while the truck was shut down. Didn't drive it today. I looked up around the water pump with a light. Hoses all look fine,lower elbow wasn't leaking,the only place I saw coolant was under the water pump down the front side of the oil pan.
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post #7 of 11 Old 02-22-2013, 09:27 PM
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Time for a new water pump


2000 DRW CC 7.3
Exterior: 08 Exterior Clone, 22.5's
Engine Mods: GTP38R WW2, 5 inch exhaust,T500, 6637, TW tunes,DI Up pipes, 6.7 fuel pump fuel system.
Trans Mods: 6.0 trans cooler, JW Valve body,Billet triple disc converter.
Sound Mods: 7" flip out tv, 3-way speakers all around, 12" sub, 500 watt amp.
Misc:dieselsite coolant filter, max ac assist, BRV, IHD,gauges, CCV

Next up power rear window
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post #8 of 11 Old 02-22-2013, 09:45 PM
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Did you pressure test the cap? Doesn't the overflow hose dump in front of the motor?
I've read that the caps commonly hold little, if any, pressure.
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post #9 of 11 Old 02-26-2013, 05:22 PM Thread Starter
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We did a pressure test without any coolant leaking. The last couple of nights there has been a small amount of coolant dripping. I am guessing about four ounces,maybe a bit more. It only seems to be leaking at night as each time I am driving at shutdown I check to see if it is leaking I see no coolant leaking. My mechanic told me today he thinks it may be leaking at the timing cover. he said it is a big job to repair. Any suggestions ? Thanks.
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post #10 of 11 Old 02-26-2013, 06:43 PM
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i would get a new mechanic. i would bet on water pump.
http://www.dieselsite.com/1996-2003f...waterpump.aspx

2000 F250 XcabSB, 4x4, 4" strait pipe, DIY intake, FRx, BDP tunes, WW2, 6.0 cooler, BTS VB, gauges, 55w digital projector HIDs
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