Coolant leak problem.
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Junior User
Joined: Mar 2010
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Coolant leak problem.
Hey guys. Well after fixing the fuel leak from my fuel lines and fuel drain valve, i have been watching to see if any gas was leaking. I still smell fuel but dont see any. THEN i started seeing a heavy drip coming from engine compartment and backed up and saw it was coolant. When i start the truck up first thing in the morning it has a pretty heavy constant drip coming out for about 5 minutes after i drive, then it stops for the day. I tried looking to see where its coming from but theres just too much **** in the way to see anything.
Anyone know what this could possibly be? Its about 20 degrees here and i really dont want to spend the day in the driveway not knowing what to look for. Everyone on this site is always helpful, so thanks in advance for any recommendations!!
-Matt
Anyone know what this could possibly be? Its about 20 degrees here and i really dont want to spend the day in the driveway not knowing what to look for. Everyone on this site is always helpful, so thanks in advance for any recommendations!!
-Matt
Have a nice Beer!!!
Joined: Nov 2006
Posts: 5,024
Likes: 1
From: WA Resident
Just replaced my water pump yesterday. Possibly, drip from the weep hole behind the pulley dripping down onto the LPOP. Then down from there. Or, it could be the gasket between pump and lower radiator hose.
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Junior User
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Well i started the truck this morning and no more leaking. I do smell fuel and it looks like its coming from the top of the fuel filter? Anyways im going to start looking for the leak under the hood and hopefully find it. But im curious why it would be pouring out yesterday and today there's nothing. Can anyone give me an answer to why it would leak and then stop?
Thanks!
-Matt
Thanks!
-Matt
Senior User
Joined: Nov 2009
Posts: 319
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From: Kirkland, WA
Mine did the same thing. With temperature differential changes, marginal seals and O rings can leak and seemingly stop and come back. My fuel bowl cap would intermittently leak, snugged it up slightly and it stopped for good. It wasn't on very tight. It would leak, I would smell diesel, then stop at times until I finally check how tight it was and snugged it up. Also had the fuel drain valve leak but new O rings fixed that. Water pumps, thermostat housing seals can act the same with with respect to intermittent leak and stop issues.
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Junior User
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Hm... When you had coolant leaking, was it a heavy consistant leak? Thats what mine was doing, and today its not. What gets me confused is yesterday when it leaked it wa about 25 degrees out, today about the same. But 2 weeks ago i was in weather that was -30 degrees and it didnt leak at all...
I also have a squeaky belt ever since this happened. Could this be from fuel dripping onto the belt making noise? I put belt dressing on it and that didnt help it at all.
Thanks!!!
I also have a squeaky belt ever since this happened. Could this be from fuel dripping onto the belt making noise? I put belt dressing on it and that didnt help it at all.
Thanks!!!
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
This sounds like the shaft seal on water pump might be going and causing the leak. Remove the belt and see if the water pump pulley has in and out or up and down play in it. It should have zero play if the seal is good.
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Junior User
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Oh yea, lots of play. I took the belt off and grabbed the fan blade and it moved all over the place.
Does this mean i need a new water pump, or just a seal?
Thanks so much for the help!!
-Mat
Does this mean i need a new water pump, or just a seal?
Thanks so much for the help!!
-Mat
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Laughing Gas
Joined: Nov 2010
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From: oriental NC.
[quote=SnoPro1234;9927405]Oh yea, lots of play. I took the belt off and grabbed the fan blade and it moved all over the place.
Does this mean i need a new water pump, or just a seal?
water pump for sure.
Does this mean i need a new water pump, or just a seal?
water pump for sure.
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
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Junior User
Joined: Mar 2010
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Okay. Well im just happy i found the problem, this was driving me NUTS!
Now the auto parts store i deal with says they have a MasterPro one with the down tube (whatever that means) for $149, and they have one with out the down tube for 114. Any idea which one is best?
Thanks
Now the auto parts store i deal with says they have a MasterPro one with the down tube (whatever that means) for $149, and they have one with out the down tube for 114. Any idea which one is best?
Thanks
Postmaster
Joined: Dec 2008
Posts: 3,340
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I would stick with OEM on pump. Clay has a good price on them: Riffraff Diesel: OEM Powerstroke Water Pump
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
If you can wait for shipping this is the best buy you will find on a new OEM water pump. Riffraff OEM Water Pump Riffraff has fast shipping.
I would also suggest you get the t-stat, t-stat housing and the upper and lower rad hoses. At least a new t-stat. This pump comes with all the o-rings.
I would also suggest you get the t-stat, t-stat housing and the upper and lower rad hoses. At least a new t-stat. This pump comes with all the o-rings.
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Junior User
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Thanks for the link and the video!!
Now from the research i have done i have seen about half of the guys replacing the thermostat, but this is the first ive heard of buying a new housing and hoses. Im not doubting you, but why the new hoses and housing?
Thanks again!!
-Matt
Now from the research i have done i have seen about half of the guys replacing the thermostat, but this is the first ive heard of buying a new housing and hoses. Im not doubting you, but why the new hoses and housing?
Thanks again!!
-Matt
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
Thanks for the link and the video!!
Now from the research i have done i have seen about half of the guys replacing the thermostat, but this is the first ive heard of buying a new housing and hoses. Im not doubting you, but why the new hoses and housing?
Thanks again!!
-Matt
Now from the research i have done i have seen about half of the guys replacing the thermostat, but this is the first ive heard of buying a new housing and hoses. Im not doubting you, but why the new hoses and housing?
Thanks again!!
-Matt
The t-stat housing gets pretty rusty. You can clean it up and paint it if you want. They can also get bent if not torqued properly (15 lb/ft) and not reseal when reinstalled.
If it has been awhile since everything has been replaced then when you do the water pump is a good time to do it all.
The choice is always yours.