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Originally Posted by texmex
I have a 96 k1500 auto vortec 350 148k. It goes through about a gallon of coolant every three weeks. There are definately no external coolant leaks. When I run it cold there is a noticable clicking noise until it is completely warmed up then it becomes only a slight clicking noise.
Also I noticed recently at idle (about 500-600rpms) the oil pressure only reads about 22 psi. Is this normal?
Please Help.
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You need to check your oil and see if it has any water/coolant in it. If it does, it will have a milky color and have alot of foam in it. IF you find this to be the case, then there's a couple things that could be causing it. The simpliest would be a blown intake gasket. It could also be a blown head gasket.
The worst case scenerio however is a cracked block/head or a warped head.
The best thing to do is park the truck untill you can determine the cuase of the problem. If not, then you will destroy the engine, if you've not already.