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Well I haven't made any progress due to needing to do some unexpected work to the 84 DD. But, I talked with Jerry at 22REPerformance. After telling him that I replaced the radiator with a new aftermarket unit during the rebuild, he suggested I try another radiator before getting the dual stage thermostat. He said that the aftermarket radiators are assembled so sloppily that its not uncommon to have dead spots due to cores being soldered closed. So I guess its off to the junk yard to try and find an OEM radiator to have reconditioned
.... I think you need to perform a combustion leak test on the cooling system. I guess it could also be a small crack in the head or block at a coolant passage
... Fluid cannot change temperature that quickly.
Ok now you guys have got me in panic mode
Ok now you guys have got me in panic mode Any chance any of you Washington guys know a shop that can do the coolant/exhaust gas test that's familiar with the 22re? I'm in the maple valley area and have yet to find anyone that is very familiar with these engines.
Well... that depends. Gnarls.
you can get something similar to this https://www.amazon.com/Block-Tester-BT-500-Combustion-Leak/dp/B06VVBSFTF/ref=sr_1_1?s=automotive&ie=UTF8&qid=1500055099&sr=1-1&keywords=combustion+leak+testerhowever any shop could perform the basic test
I don't think this is intended to be a joke, but I suspect we might be able to recommend a place...
There is a Toyota Master Tech that lives in Maple valley, Washington.He is a Legend around here. They call Him Toyota Chris. You might have heard of Him.I know him well and could talk to him for You.He does not work for free, but is a great guy. I think He also is a marlin Crawler Guy. What was his user name again?Many of the guys on here Know him well and would recommend him very highly.
in case all this sarcasm is misunderstood, reach out to :)bestgen4runner aka Chris. He lives in your area and is our resident Toyota mechanic
I will be patiently awaiting the diagnosis
:)bestgen4runner is on board for next week . Hopefully we will NOT be reporting anything catastrophic.
Drill an 1/8" hole in the flange of the old thermostat, install it and see what happens.
I don't believe that will have any affect on the temperature spikes. Gnarls.
Stupid question.........Do you have the thermostat installed upside-down? If so, the wax pellet would be on the hose side (cool side) of the thermostat............You would get the overshoot with it installed that way.
... The 2 stage thermostat is on its way, so I will be able to give that a try.
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