LR4 Coolant leak help - Defender Source
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  #1  
Old January 26th, 2016, 07:56 AM
slorocco
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Dan Prasada-Rao
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LR4 Coolant leak help

Ok, so not a defender... Trying to help out a friend. She's got a 2011 LR4 with a coolant leak. She had the water pump replaced thinking that was the problem but after sitting in the garage over the weekend there is another puddle of coolant under the truck.


Anyone have any ideas on this leak, is there a common failure point on the LR4s for coolant leaks?


Also if anyone has a good recommendation for a reliable shop somewhat close to Southern Maryland, let me know.


Thanks
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  #2  
Old January 27th, 2016, 12:18 PM
Departing90
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Sasha
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The thermostat housing gasket leaks and if it does so from tye back it'll snake its way through and down the water pump. The BMW type bleeder screws under the plastic engine cover and overflow tank are also suspects.

You really should steam clean the engine so you can see leaks better, go for a drive, keep the engine running and look for the leak.
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Old January 27th, 2016, 12:59 PM
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Jymmiejamz
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Jimmy
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Is the coolant level actually low? It could just be residual from when the water pump was replaced. If not, there is a plastic coolant manifold under the intake that is prone to splitting.
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Old January 27th, 2016, 01:03 PM
slorocco
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Dan Prasada-Rao
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Thanks for the assist guys. I was reading up on it last night, this is a definite leak. I'm guessing the culprit is one of the plastic bleed screws or other plastic parts in the system.


Hopefully a relatively easy fix.


Thanks again. I'll keep you posted on what we find out.
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Old January 27th, 2016, 02:08 PM
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Whoever did the water pump may have rolled the o-ring behind the pump.
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Old January 27th, 2016, 02:13 PM
slorocco
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Dan Prasada-Rao
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Thanks, I'll pass that on. I hadn't thought of that

------ Follow up post added January 27th, 2016 02:14 PM ------
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