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Originally Posted by buccaneer1
Had the same problem two months ago. Had the kit replaced, intake manifold gasket, water pump. Still leaking. Now we were told it was probably a freeze plug that was the culprit. We'll keep refilling until we save our stash back up to make more repairs.
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I've read all of the intake manifold threads and I feared my '99 burb had that problem as well. I kept losing fluid slowly over several months and I finally found the cause. The "quick-connect" heater hose that is located at about 10 o'clock from the thermostat housing was leaking once the engine heated up. I replaced the whole unit ($8 @ NAPA). I might point out that the metal housing was so corroded from the inside that I broke the metal housing off leaving the threads in the block. I mean I barely started to apply pressure and it broke. I was able to extract it with a long handled ratchet and an extractor tool (i heated it for almost 5 minutes with a mini butane torch). In hindsight I would have just replaced the plastic clip and the o-ring. My leak has stopped. I'm sure I'll still get to do the intake manifold gaskets but, for now, my coolant reservior doesn't go dry anymore.
Just a thought.