Stay away from Mishimoto Radiators

[TomDirt]

I also did the fuse 27 mod, so the entire fusebox & cable set are out of the way. Luckily I have my 2012 ecoboost right outside so I can refer to it and be sure nothing gets missed.

 

[FishFreak]

Mine is (finally) ready to test-fit on my 2011, (code name endless summer project.) I'll set it on the bench and see if it holds pressure before bolting it on.

Did it have any problems holding pressure Tom?

 

[TomDirt]

I couldn't find the right size cap locally, so I'm ordering a pair of these, plus the AirLift vacuum test kit. I've never used one of them before, but for $70 you get a tool you can use to not only test the system, but also draw air out of the heater core so there's no more "burping" the system.

 

[Skubik]

Alright received new radiator pretty quickly. Gonna install this weekend along with new spark plugs and new serpentine belt and belt drive pullies. Let’s go!

 

[TomDirt]

Alright received new radiator pretty quickly. Gonna install this weekend along with 16 new spark plugs and new serpentine belt and belt drive pullies. Let’s go!

Fify

 

[TomDirt]

Those test caps finally arrived. I'm testing the system at 19psi right now. (That's the stated rating of the mishimoto radiator cap.)

 

[Skubik]

Let us know your results. Just installed my new replacement radiator and using the provided 19psi cap. I don’t think the 19psi cap is an issue but I’m curious.

 

[Skubik]

What I read in the past is that In theory a slighter higher psi radiator cap helps prevent overheating. So 19psi from 16 should not do any harm but actually do the contrary

 

[radelow]

The testing is all good and well but the problem is the radiators aren’t constructed well. They are not up to the riggers of what people do with these trucks. Eventually the joints where it meets the end tanks fail and you have a leak. Maybe if you don’t off-road your truck you won’t have a problem…wish you luck. They are junk.

Mark

 

[Skubik]

I certainly do off-road lol didn’t just boost and make her pretty for nothing.
It’s my first Mishimoto failure, I understand some people may be upset at Mishimoto but that’s what the lifetime warranty is there for, $100 later I’m back on the road of course easy for me to say since I do all my own work have a lift and shop etc.. I’d rather not buy another $1000 radiator if I can avoid it for now and give them a shot. Now maybe in a year or 2 I’ll be going through the same thing, I’ll cross that bridge then and perhaps just demand a full refund but hopefully not, we’ll see. If anyone is fresh on the market for a new radiator however then yes Just go with a different brand to be on the safe side.