4.3L Freeze Plug Locations
Hi all, did a search and didn't find too much info...Just got my blazer on Friday (inherited it from my grandfather) its a '95 LS 2wd 4dr with 61,000 miles (looks & drives like new!). Only issue with the blaze is a small coolant leak on the right (passenger) side of the block...nothing major, it leaks just about a saucer full overnight.
Anyway, as I began tracing the leak, I consulted the forums and found that most leaks are often associated with either the intake manifold gaskets or a freeze plug. I was able to inspect the manifold gaskets and they look good. The coolant is dripping on to the crossmember from the pass. side motor mount, so I instantly thought that it might be a head gasket; but the oil is in perfect shape, the radiator doesn't bubble while running, and there's no smoke during starting, idle, or WOT.
The only thing that I can figure out is that it must be leaking from one of the freeze plugs on the side of the block (if I understand the layout of the 4.3 correctly, there should be two per side). Changing this thing looks to be a chore...I'm planning on pulling the wheel/tire, removing the inner fender liner, taking off the exhaust manifold/heat sheild, and trying to replace it without pulling the motor.
Does anyone know if this is possible, or does the motor mount block access to the freeze plug?
Any help is greatly appreciated!