hi, just rebuilt a front end smashed 3.9 efi disco, 1998, its been lying for a while and found vacuum pipe has disintegrated. can trace pipe for cruise control from vacuum pump behind n/s/f headlight to cruise control actuator at throttle linkage but in between these two is a t piece and i can't seem to find what the third item in teh chain is. any thoughts welcome. Also on reassembling the maf/air filter assembly i have a steel sprung o ring which looks like it fits in a groove in the maf but i can't see the purpose in it. I've looked in official parts manual and workshop manual, but no diagrams and spring ring isn't shown. again, any thoughts. thanks
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