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  1. gnathv

    1986 f250 6.9 IDI wont crank.

    Check your neutral safety switch first
  2. gnathv

    1986 f250 6.9 IDI wont crank.

    When you heard the clunk on the relay it should have turned the motor over. Did it? The new one that made no sound, was it screwed to inner fender? The mount is what grounds the relay.
  3. gnathv

    1986 f250 6.9 IDI wont crank.

    You’re only seeing the temp light in the start position and not run. That should just be a bulb check. It will not stop the truck from cranking.
  4. gnathv

    1986 f250 6.9 IDI wont crank.

    You can also move the ignition switch on column with your hand to see if it will crank.
  5. gnathv

    1986 f250 6.9 IDI wont crank.

    It could be the ignition switch on steering column. I’ve seen them go bad or get loose and slightly move. Have you tried holding the gear selector up in park or moving to neutral to see if it will crank?
  6. gnathv

    1986 f250 6.9 IDI wont crank.

    Did you jumper 12v to small post on relay or just jump across the 2 large terminals? If you put 12v to small terminal you can verify if relay works, or check “trigger wire” for 12v when key is in start position.
  7. gnathv

    Trans cooler?

    Bypassing radiator works somewhat until you’re caught in stop and go traffic.
  8. gnathv

    1986 f250 6.9 IDI wont crank.

    Is it auto or manual? Clutch safety switch or neutral safety switch maybe.
  9. gnathv

    Recommendations for AC coolant.

    You’re welcome. Make sure your condensate drain is not clogged before you start. If it hasn’t been condensating in a while they tend to clog up with dirt or dust. Reach down by hvac box (has fan and evap coil, can also reach up from underneath) there is a rubber tube/nipple. Squeeze it and make...
  10. gnathv

    Recommendations for AC coolant.

    A fully charged ac on these will condensate the suction line (larger of the two) right up to the compressor. Add a can slowly and watch the condensation creep from the accumulator to the compressor. Watch the condensate drip from evaporator (under truck) and when it’s charged you’ll see a steady...
  11. gnathv

    Recommendations for AC coolant.

    When you look at suction and accumulator you’ll know if charge is low.
  12. gnathv

    Recommendations for AC coolant.

    Look at your suction line and accumulator while in ac. Is it condensating and is your compressor running or short cycling?
  13. gnathv

    Typical Injector Pressures

    Are you scanning it because you have a problem? 580 at idle and 1800 with some pedal is normal. When driving does it have good power? Ipr percentage would give more indication of performance. Should have at least 2000 lbs icp at less than 50% ipr.
  14. gnathv

    So what did you do with your truck today?

    Take the can off the filter and either take a punch on the metal screw connection (holes on each side) or put a pair of needle nose pliers in the metal screw connection (holes on each side of threaded connector) then put a screwdriver or bar in between plier and turn like a spanned wrench.
  15. gnathv

    So what did you do with your truck today?

    If it was put on dry the heat will bond the gasket to the header.
  16. gnathv

    So what did you do with your truck today?

    Did it not move or did the metal tear?
  17. gnathv

    So what did you do with your truck today?

    Did you try a hammer and chisel to knock it loose?
  18. gnathv

    I'm back in the IDI game!

    Turn your relay so it is vertical, water will drip out.
  19. gnathv

    Rough idle

    On my menu it’s just after icp.
  20. gnathv

    Rough idle

    Look through your pids. I have and edge and monitor my ipr.
  21. gnathv

    Chasing Down Fuel Leaks

    This is what you’re prying against.
  22. gnathv

    Chasing Down Fuel Leaks

    It does remove from inside. O ring replacement should fix your leak.
  23. gnathv

    Thread size of the radius arm

    Oreilly s sells a radius arm nut kit. It lists 3/4 x 10 as the size with a 1 1/8 hex. Says it will fit 1997 f350.
  24. gnathv

    So what did you do with your truck today?

    You might be able to take your carpet out and pressure wash it. My truck was used for work by po and there were coffee, drinks, and red clay. I pulled it out to install sound deadening and decided to try cleaning it before buying new. The new carpet just didn’t seem to have the fit and quality...
  25. gnathv

    Wood u buy a high mileage turbo 6.9?

    I wonder what other repair shortcuts he has taken. At $9500 I wouldn’t expect to have to start replacing parts immediately.

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