LML Coolant Leak

Cmmoreno00

New member
Jul 24, 2016
4
0
1
So today I was driving my truck and smelled coolant. Got home checked it out looks like it’s coming from the passenger side rear of the motor. Saw a lot of burnt on coolant in the exhaust. Took off the inner fender and seems like it’s something around the up pipe and down pipe. Doesn’t seem to be leaking a lot. Any ideas? 11 deleted with the egr intact.


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clrussell

pro-procrastinator
Sep 23, 2013
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The 90* hose on the egr system top left Of the turbo. If I was guessing.
 

FC5452

Member
Mar 17, 2013
301
0
16
Eastern PA
Is that coolant pipe still attached ? If so it’s held down by a single bolt and sealed with an O ring. That would be the likely cause or where the hose from it goes into the heater core.


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TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
15,665
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Mid Michigan
That little access cover gasket on the adapter plate would be my guess, if the LML has it.
 

Cmmoreno00

New member
Jul 24, 2016
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1
I’ve heard of the plate that’s what someone else told me. That looks like a pain to get to.

Yes the coolant line is still attached as far as I know. Where is it located?

I’ll look by the turbo and see if that one is leaking as well.


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Blackmax123

Member
Aug 2, 2014
683
1
18
central Pennsylvania
That coolant pipe is located right beside the turbo drain pipe. I would also bet it's the plate on the bell housing. They are a pain to get too and 1 bell housing bolt has to come out to get the cover off. I've never done it in the truck but may need to pull the down pipe and 1 uppipe, but maybe not, you might be able to fish it out
 

Cmmoreno00

New member
Jul 24, 2016
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1
It’s not leaking by the turbo. No coolant in the valley. I’ll be taking out the up and down pipes this week and see if I can find it. Thanks for the advice.


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c5fourj

Occasionally moving quick
Dec 20, 2014
307
3
18
Brighton, CO
I just recently had to fix my heater core fitting on the firewall due to leaking. Might be another possible spot.
 

Cmmoreno00

New member
Jul 24, 2016
4
0
1
Thanks for all the info. I think it’s my heater core. I have coolant dripping from the condensation drain. I’ve replaced the fittings that lead to the heater core. It has stopped and it always seems to come back a few days later.


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