Well, it's time for me to do my tranny filter and fluid anyhow. I called Merlin about the accumulator leak and he said it is VERY common and the part to fix it are only $13 so I went ahead and ordered the part. So I will likely swap it at the same time I do my filter and fluid. The TSB calls for 2 special Isuzu tools but Merlin said it can be done with a little care and a flat blade screw driver. Cool thing is, I found one of the Isuzu J tools on eBay (the one for removing the old accumulator) so it shouldn't be too bad.

Given how common Merlin said the leak is, I was just wondering if anyone else has had the issue.

Bart