Radiator problems widespread or more isolated - Nissan Armada Forum: Armada & Infiniti QX56 Forums
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post #1 of 14 (permalink) Old 06-01-2015, 09:32 AM Thread Starter
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Radiator problems widespread or more isolated

Are the radiator problems widespread or more of an isolated issue? In particular the problem where the radiator fails internally and tranny fluid and coolant mix. I have 80,000 on mine and I am considering just switching mine out prophylactically, is this reasonable or an over-reaction?
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post #2 of 14 (permalink) Old 06-01-2015, 10:12 AM
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As a follow up question: is there a recommended oil cooler to use so that you can completely bypass the radiator? I've searched a couple times for that but didn't find a satisfactory answer. Adding an oil cooler, I imagine, will be much easier and no more expensive than replacing the radiator.
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post #3 of 14 (permalink) Old 06-01-2015, 10:45 AM
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my raditor went bad at 88,000....

2005 QX56

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post #4 of 14 (permalink) Old 06-01-2015, 11:01 AM
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Mine went bad at 150,000.


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post #5 of 14 (permalink) Old 06-01-2015, 11:29 AM
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Long tru cool if you want to get an external oil cooler


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post #6 of 14 (permalink) Old 06-01-2015, 12:55 PM
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No problem with mine. 160K

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post #7 of 14 (permalink) Old 06-01-2015, 03:02 PM
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Switched mine as a preventive measure at 98k. I work my truck pretty hard and since 77k it has been only used for towing a boat and RV so I did it simply to increase cooling capacity with an additional row in the radiator, minimize cross contamination potential and overall increase reliability. In my opinion it is not an “over reaction” and is completely “reasonable”. Our radiators are known to fail and if I can have a little more peace of mind it is worth it. It can still fail but all aluminum is less likely to. When my truck is out the family is in it and we are doing something fun. Stranded on the side of the road with coolant leaking or worse a fried transmission is anything but fun. Even worse would be knowing I could have done something to prevent it.

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post #8 of 14 (permalink) Old 06-02-2015, 10:10 AM Thread Starter
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Did you bypass the cooler in the radiator or add additional? I am interested in bypassing and eventually replacing the radiator. Does anyone know of a good bypass thread, I found one on the Titan forum, but I found it kind of hard to follow.
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post #9 of 14 (permalink) Old 06-02-2015, 10:51 AM
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I did not bypass the internal cooler but it is now all aluminum.

2005 SE Off Road: JBA LT Silver ceramic coated headers, Cajun B-Pipes with Heavy Metal Cats, Borla Dual SS Cat Back, Uprev Tuned, K&N Air Charger, CSF 3328 Aluminum Radiator, Grille Craft Upper and Lower Grill, Burtman Rear Air Reflector, Manik SS Nerf Bars, Nissan Tow Mirrors, Bilstein HD's, Moog 81085 Rear Coils, AirLift 1000 Rear Springs.
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post #10 of 14 (permalink) Old 06-02-2015, 01:36 PM
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It's pretty straight forward when you're in there. The sticky is a bit wordy iirc.


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