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2002-2005 Range Rover MkIII / L322
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Discussion Starter #1
Hey guys I'm having the transmission overheat message popping up so I've decided to change the transmission oil cooler, and I need to drain the coolant, I do not have a drain plug where the original one should be located because someone put in a nissens radiator, so I have no idea which hose I should pull to drain the coolant. Any help quick as I need to do this.
 

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JACK'S GRANDAD
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9,242 Posts
Lowest hose will drain it.
 

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Could you advise what a Nissens radiator is and that the original trans cooler plugs into it. The lines on the oil side might be a bit of fun to disconnect. I had to spray ours with brake cleaner and penetrating oil to get the clips to move for disengagement. Some people suggest changing the lines as they may collapse internally and others have suggested also changing the cooler manifold. Ours required neither. but do get the dow corning silicone grease for coolant o rings as merlin highly recommends. Let us know how you get on. Did you check in and out temps with a laser thermometer to pinpoint the issue before disassembly. Bottom line for our rig was that the rad had been changed before we bought her but the cooler had not been changed.
 

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many thanks for the info. I should have searched first.
 

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Administrator
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LMAO... just pokin fun at you. They are right up there with Behr for factory supply chains and aftermarket replacements.
 

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Hah. Glad you did. When I looked up the rads they are sold thru eEuro parts and the price seems very good at about 185 US$. So the quality aspect is good to know. Interesting that the shipping weight of the rad is 16 pounds and change vs. the oem behr and range rover at about 8 pounds each. They do seem like a proper company and I assume the trans cooler plugs right in like an oem unit so very curious that the rad may or does not have an appropriate drain valve? An aftermarket rad here is 350 Cdn. plus 13% tax and a 1 year warranty so it is of interest depending on the shipping cost and exchange.
 
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