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  1. alldodge

    Engine won’t turn over - no spark

    You have 2 relays on the motor, swap them and see if it's still a beep and no fuel pump If fuel pump does not turn ON then the ECM is not applying a ground to the relay. Pic below is from a 555 ECM (not yours, different pins) but when key is turned ON the Main power relay energizes which sends...
  2. alldodge

    454 mag mpi chuggles/stalls

    Have you tried to plug the PCV valve? Use a NOID light to see if all injectors are firing Might have a bad ground connection in the harness Could use some real time voltage readings of IAC, MAP, TPS and IAT Sensors
  3. alldodge

    Replace Transducer Mount - Seal Old Holes

    Drill the hole bigger until you have clean dry wood. Fill hole with Marine-tex epoxy, then dill new holes to fasten
  4. alldodge

    MC-1 Drive Dog failure?

    I don't see enough pitting on the gear posted to give me major concern with the motor you have. If there is worst spots then could be and I'm not there look and feel
  5. alldodge

    Volvo Penta 3863330

    The 5V reference comes from the ECM but any one of the sensors that use the reference can cause the voltage to be low if they are pulling to much current. Turn key ON and while measuring voltage disconnect each sensor one at a time and see if voltage comes back up Low voltage at the fuel pump...
  6. alldodge

    Single beep when engaging drive, 2017 Volvo Penta 4.3 V6-200J, no codes

    Don't know how good a Autel AL529 is at reading codes on the motor, so it might not be showing everything. Would be good to get some info when motor is running from the O2, TPS, MAP and Temp sensors To much fuel can really mess up the catalyst and O2 sensors. Fuel pressure should be 50-60 psi...
  7. alldodge

    2005 Mercruiser MPI 5.0L misfiring(?) when in gear, idles fine

    The breaker looks fine, so long as there is 12V on both sides then it's connected The gap tester is the inline one which has an adjustable gap, set to about 3/8 inch Starting fluid should have fired if there was any spark, so you have gone from it had spark to it has no spark Yes spark...
  8. alldodge

    MC-1 Drive Dog failure?

    Speedy sleeve for seal surface Need a bearing splitter to remove it from the gear Good find on the MC-1 in TN, but note it may need new seals also
  9. alldodge

    Engine won’t turn over - no spark

    0L683478 EFI, TBI, MEFI-3, TB-dizzy Your saying "engine won't turn over" but I think you mean it does crank (turn over) but it won't start (run) When key is turned ON do you hear a beep and does the fuel pump run briefly?
  10. alldodge

    Engine won’t turn over - no spark

    It's missing 2 digits, serial number for that year should be a number, a letter, than 6 more numbers
  11. alldodge

    2005 Mercruiser MPI 5.0L misfiring(?) when in gear, idles fine

    Spark gap tester to see if your missing spark. If spark is there than we look for fuel. Place on coil feed and if good there, move to a few plugs
  12. alldodge

    Volvo Penta 3863330

    He shows price of $3495 Ask if he can repair yours What's the issue
  13. alldodge

    2014 GMC Sierra AC

    Bummer Don't forget about flush, receiver dryer and expansion valve
  14. alldodge

    2006 Volvo 5.0 Penta water ingestion

    Look at the boats hull for the water ring. Measure down from top of hull to the ring, than measure down to exhaust
  15. alldodge

    Engine won’t turn over - no spark

    How about the motor a serial number?
  16. alldodge

    5.0 GXi fuel problem

    Do you hear the fuel pump run when key is first turned to ON?
  17. alldodge

    Hot water heater

    Could be the hot/cold lines go swapped
  18. alldodge

    5.0 GXi fuel problem

    Which GXI is it, serial number maybe? So key turns ON, pump runs and can start. It runs briefly and then if try to restart (key off than back on) it doesn't reprime?
  19. alldodge

    Control cables.

    The shifter
  20. alldodge

    2005 Mercruiser MPI 5.0L misfiring(?) when in gear, idles fine

    No OBD port, boats have unique connectors based on which ECM and Rinda makes the scanners. Can get a TechmatePro or Diacom will need connector 94006. The Techmate is hand held and self contained, the Diacom uses a laptor The lower cost kits in the link have the single connector. The higher ones...
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