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Old 03-20-2014, 05:42 PM
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Coolant leak, need help!

I noticed a small puddle under my truck, pretty sure it's coolant. I tracked down the drip under my driver side, followed it up to under the degas/ficm area to what looks like a bolt just above the exhaust manifold. I have no idea what it is, definitely not a head bolt. But it's a fairly steady drip, about 1 drop every 10-15 seconds. I am trying to figure out what I'm looking at under there, I can't see the bible listing anything related to cooling in the area. It's dark right now so I can't really get in there. Any thoughts? My running temps have been in the high 180's, Deltas within 2-4 tops. Temps outside have been cold so the high 180 temps haven't been concerning me too much but I could be wrong? Summer is typically 195-200 EOT.

Upon looking at the bible diagram once more, I am almost 90% certain I am looking at one of the bolts that holds the FICM mount. Not the FICM itself but the mount the FICM sits on. Does this make sense?

Last edited by Boozer76; 03-20-2014 at 05:54 PM.
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Old 03-20-2014, 08:13 PM
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Could have puked some out, or I have seen plenty of bottles leak. Check the heater hoses running that way and the plastic wye hose from the bottle too.
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Old 03-21-2014, 04:50 AM
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I went back out after researching and finding that there's just no way it could have been originating from that bolt. I tried to trace it up higher to the degas bottle. It looks like there was a small trail of fluid coming from up behind the cap. Did not look like it flat out puked, but it does seem to be coming from there. Cleaned everything up and drove it this morning. Didn't roughhouse it at all, and after about 40 miles of city/highway driving I don't see anything around the cap. It's in the parking lot right now so I'm waiting to see if a puddle forms but I'm not really expecting it since nothing seemed wet around the degas bottle or underneath.

My degas bottle cap has the white label on it. I can't remember if the white or yellow cap is the one that gives troubles. I can't imagine I'm having HG issues since I have never seen white smoke even if I get on it, and I'm not smelling any coolant in the exhaust. My temps are always in the high 180's tops during this winter and the deltas are minimal, 2-4 tops as I mentioned. I deleted the EGR over a year ago as well. I'll keep this thread posted and feel free to shoot suggestions.
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Old 03-21-2014, 06:26 AM
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Sounds like a cap to me. I'd replace it regardless and then just monitor it.
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Old 03-21-2014, 06:27 AM
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Quote:
Originally Posted by 4506.0 View Post
Sounds like a cap to me. I'd replace it regardless and then just monitor it.
From your lips to god's ears my friend! I will replace it this weekend and closely monitor it.
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Old 03-21-2014, 10:03 PM
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Pull the degas bottle shove a bright flashlight in it and inspect it for cracks. I bought a 25 dollar cap after chasing thr same issue for 2 months. It ended up being a hair line crack where the main feed line goes in. Only leaked when it was at operating temps. Long story short I paid 25 for the cap didnt fix it spent another 45 at orileys for a bottle + cap and problem solved. And I got a life time warranty
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Old 03-28-2014, 01:08 PM
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I found it. It's the hose that T's off the main hose under the degas bottle. It runs around back behind the engine over to the passenger side into the dash, to what I am assuming is the heater. It's chaffing over the back corner of the FICM. It looks like an easy hose to replace myself, anyone know the part number?

On second look, that factory crimped into a hardline running along the dash. Do I need to replace tye whole thing?

Last edited by Boozer76; 03-28-2014 at 01:18 PM.
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Old 03-29-2014, 05:24 AM
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Whole thing. What I've done before is just put a plastic connector or flush tee in right there where it rubbed through. That and a couple clamps...
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