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Hello - new to the forum - first post!I run an '85 4runner (22RE) and it's been overheating lately. I took it out mudding multiple times after I got it late this summer and all was well, then one day it decided to blow all the coolant out. Now every time I run it after about 5-10 minutes of running / driving (even in cold air on the open road) it overheats and I lose the coolant. The radiator is clean, I changed the thermostat (and tested the original, which worked, and the new one has the little bypass hole), I made sure the belt driving the water pump was tight / not slipping, there was no evidence of the water pump being broke (the shaft didn't wiggle around) .... Also before it decided to regularly overheat it would gurgle and bubble after I shut it off, which didn't seem right to me. Any thoughts? Thanks!
You can buy them cheap and even make a leak down tester, from an old broken spark plug and a welder.http://www.powerblocktv.com/two-minute-tech/2min-125/make-a-leak-down-test-tool
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