Intake woes

This is a picture of an missing intake manifold on a 3.8 Chevy 6cylinder. The intake we removed because it was seeping from the corners where it meets the head. (the head is what is pictured) See that stuff coming out of that water passage? That passage was completely blocked shut with antifreeze and corrosion.

Here is another shot of the plugged passage. This passage carries water between the heads and circulates it through  the motor. The customer also complained of intermittent overheating. This could be the cause.

It was like this on both sides of the motor. The cause of this condition is most likely lack of maintenance. Regular cooling system flushing and fluid changes would have probably kept this from happening.

Here is a picture of the port cleaned out, after we put the intake back on and recheck the vehicle it ran and functioned fine. No sign of overheating and no more leaks. The moral of the story is preventive maintenance can keep you out of the shop and your car running better longer.
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