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    Hard Starting (I know this isn't new)

    Hi; I have a 1983 F350 6.9L IDI, C6 auto, crew cab, 4X4. My question is: Is there a systematic approach to troubleshooting air-leaks throughout the fuel systm? I have seen many posts here about return lines leaking, IPs leaking etc. In order to be thorough, I would like to know where...
  2. L

    Best Coolant for IDI?

    Whats the best brand coolant to use for an 83 6.9L? I've read all the stuff on cavitation etc.; wondered if people have favorites (other than the Evans upgrade).

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