Small coolant leak.
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Elder User
Joined: Jan 2011
Posts: 951
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From: Center, Texas
Small coolant leak.
I was going to clean my grounds on my truck earlier and noticed a small drip of coolant coming from underneath the truck down beside the starter coming off the tranny lines. I shined a light up to see where it was coming from and there was a small wet spot upwards of where the down pipe comes. I went and looked down from top of engine to see if I could get a better look and noticed I had a set spot on the front of the motor underneath where the alternator is. I did a stealth egr delete a few months back due to a ruptured cooler and reused my blue hose. It doesnt look like the hose is leaking or atleast it doesnt look like it is leaking enough to see it so I wonder if I could have a small leak where the coolant part of the cooler goes up into the intake, maybe from the small oring on that nipple end. Anyway I dont think it is from the ruptured part of the cooler as it was plugged with pressed in plugs that have shoulders and are about 1/2" long or so plus heavily welded (was air tested as well) so Im 100% positive Im not leaking there. Plus there is no white smoke and no noticeable loss of coolant from the degas bottle. It is enough to drip though so here are a couple of pics from underneath the alternator and then one lower down on the pulleys. Anywhere else I need to be looking? Thanks.
Lead Driver
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
Heater control valve dripping (if you have one)? Being its wet from the starter all the way around to the alt it could be coming from a few different places. Maybe some dye and a black light..
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Elder User
Joined: Jan 2011
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From: Center, Texas
One factor, truck is pulled halfway into dads garage sitting on an incline front up about 3-4" higher so the rearward drip could be downhill runoff. It looks more "contained" to the area around the intake close to the alt.
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Elder User
Joined: Jan 2011
Posts: 951
Likes: 2
From: Center, Texas
Further inspection looks to be coming from the coolant nipple on the egr cooler. It is a small drip maybe about a minute apart but don't know how long it does it or been doing it. It may stop when engine is warmed up. Guess I should put a new oring on when I put cooler back in.
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