it most likely over heated..
nothing to major.. that's normal behavior on some cars..
even if using the spill free funnels it will do that.. that's why they come with a plug so that the system will build pressure and cycle normally..
you should have nothing to worry about
TLCA # 20314
84 Hilux, 22re Conversion, 63" chevy rears, Rears up front, Bobbed bed, duel e-lockers, 5.29's, 35" Ground Hogs
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