What might be the cause of the white/yellow chalky buildup I'm finding in the bolt holes to hold my intake manifold to the head? There is so much build-up it completely caked the bolts in it as I pulled them out... coolant leak maybe? Thanks,

Dan


94' 22re Ex Cab 4x4...pretty much stock, 2" 4 Crawler body lift and 32 x 11.50 bfg mud terrains.