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  1. C

    1990 7.3 IDI will not stay running/IDI Down!

    Update for future reference. If your tank selector valve becomes stuck; turn your ignition on and start hitting the valve with a rubber mallet while flipping the switch on the dash back and forth. It may start properly functioning like mine did.
  2. C

    1990 7.3 IDI will not stay running/IDI Down!

    Its definitely fuel related, looking like the lift pump or tank selector valve right now. Got it hooked up to a wrecker and home now, so the old girl is safe.
  3. C

    1990 7.3 IDI will not stay running/IDI Down!

    Yeah, the problem doesn't appear to be before the filter head. A previous owner had blocked off the return line to the filter head from the injectors.
  4. C

    1990 7.3 IDI will not stay running/IDI Down!

    My IDI let me down today. She's stuck at the truck stop for the night but I need to get it going tomorrow somehow. I drove it to the truck stop about 2.5 miles from home after I cold started it and let it idle for about 10 minutes in about 40 degree weather to warm and it started and drove fine...

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