I'm still trying to find the source of my coolant leak on my 1986 Corvette. I took a few hours over the weekend to diagnose without taking too much apart. I have narrowed the leak down to the RH front of the engine somewhere on the intake manifold. The coolant puddles in the casting on the lower intake just below the front intake runner. I took the PCV valve tube off and moved the wiring harness away a bit after disconnecting the TPS and the IAC connectors. It's below there somewhere. I'd rather not disassemble the whole upper intake manifold until I know what is below on the lower intake manifold. I looked in the factory service manual to try and find an illustration of it but nothing in the manual has the detail I need. Any suggestions on where to find a few detailed illustrations of what is there?
