HELP!!!! Starting Issues

Discussion in 'Gas Engines/Drives/Transmissions/Props' started by struss3, May 20, 2020.

  1. struss3

    struss3 Member

    37
    May 20, 2020
    2000 Sea Ray 210 Signature
    Mercruiser 5.7 TBI EFI
    SN: 0L640144
    Oops, now that I look closer I see it! Thanks for all your help. Back to trouble shooting.
     
  2. struss3

    struss3 Member

    37
    May 20, 2020
    2000 Sea Ray 210 Signature
    Mercruiser 5.7 TBI EFI
    SN: 0L640144
    Replaced sensor, nothing. Where do I find ckt numbers? It’s telling me to check ckt 439.
     
  3. struss3

    struss3 Member

    37
    May 20, 2020
    2000 Sea Ray 210 Signature
    Mercruiser 5.7 TBI EFI
    SN: 0L640144
    upload_2020-5-22_18-18-38.jpeg
     
  4. Wanderer 290

    Wanderer 290 Active Member

    207
    Jul 1, 2019
    01 sea ray 290 sundancer
    Twin 5.7 b3’s
    Chk 439 is
     
  5. Wanderer 290

    Wanderer 290 Active Member

    207
    Jul 1, 2019
    01 sea ray 290 sundancer
    Twin 5.7 b3’s
    53A37826-B3F6-4B7A-9E36-93EC4A8C1E5A.png
     
  6. struss3

    struss3 Member

    37
    May 20, 2020
    2000 Sea Ray 210 Signature
    Mercruiser 5.7 TBI EFI
    SN: 0L640144
    Thanks wanderer, I’ll check that tomorrow. Got a feeling it’s going to end up being the ECM.
     
  7. struss3

    struss3 Member

    37
    May 20, 2020
    2000 Sea Ray 210 Signature
    Mercruiser 5.7 TBI EFI
    SN: 0L640144
    Did the ignition system check and everything checked out ok. Just noticed I’m getting no fuel from injectors and no spark when trying to start. Tach only moves to less then 200 when cranking
     
  8. Wanderer 290

    Wanderer 290 Active Member

    207
    Jul 1, 2019
    01 sea ray 290 sundancer
    Twin 5.7 b3’s
    I am pretty sure that a failed icm will result in no spark and also inhibits fuel pressure.
    Out of curiosity, do you get aoil pressure indication when cranking?
     
  9. struss3

    struss3 Member

    37
    May 20, 2020
    2000 Sea Ray 210 Signature
    Mercruiser 5.7 TBI EFI
    SN: 0L640144
    No oil pressure either. I don’t have an ICM because it’s EFI, only the ECM
     
  10. struss3

    struss3 Member

    37
    May 20, 2020
    2000 Sea Ray 210 Signature
    Mercruiser 5.7 TBI EFI
    SN: 0L640144
    Bad oil pressure sensor?
     
  11. Wanderer 290

    Wanderer 290 Active Member

    207
    Jul 1, 2019
    01 sea ray 290 sundancer
    Twin 5.7 b3’s
    If there is a distributor I am reasonably sure there is an icm under the rotor. At least every 2000 5.7 TBI (throttle body injection) I have seen has a distributor and ICM....ICM being an ignition control module.
     
  12. struss3

    struss3 Member

    37
    May 20, 2020
    2000 Sea Ray 210 Signature
    Mercruiser 5.7 TBI EFI
    SN: 0L640144
    Yes, there’s an ignition sensor under there, replaced it with 2 new ones. Thought you were talking about the ICM that the non EFI have. Sorry
     
  13. Wanderer 290

    Wanderer 290 Active Member

    207
    Jul 1, 2019
    01 sea ray 290 sundancer
    Twin 5.7 b3’s
    I was a little faulty in my terminology... correct name is “ignition sensor assembly “. So the oil pressure sensor would be next maybe.. Anybody have something to add?
     
  14. struss3

    struss3 Member

    37
    May 20, 2020
    2000 Sea Ray 210 Signature
    Mercruiser 5.7 TBI EFI
    SN: 0L640144
    Thanks again wanderer, I will check the oil sensor tomorrow.
     
  15. struss3

    struss3 Member

    37
    May 20, 2020
    2000 Sea Ray 210 Signature
    Mercruiser 5.7 TBI EFI
    SN: 0L640144
    Tested the oil pressure sensor, getting a steady 240 ohms which supposedly means its good
     
  16. Wanderer 290

    Wanderer 290 Active Member

    207
    Jul 1, 2019
    01 sea ray 290 sundancer
    Twin 5.7 b3’s
    One more quick check that occurred to me...
    The engine harness has a cannon plug about a 1 1/4 inches in diameter with about 10 pins located on the top back side of the block. Loosen the hose clamp on it and verify the connection is tight. I had a problem similar to yours a few years ago and found that to be the problem.
     
  17. struss3

    struss3 Member

    37
    May 20, 2020
    2000 Sea Ray 210 Signature
    Mercruiser 5.7 TBI EFI
    SN: 0L640144
    Yep, already did that. Going to order a new ECM tomorrow. I’ll update after I receive it. Thanks for all the input.
     
  18. struss3

    struss3 Member

    37
    May 20, 2020
    2000 Sea Ray 210 Signature
    Mercruiser 5.7 TBI EFI
    SN: 0L640144
    Well, good and bad news. ECM is fine, saved $1800. Bad news- have no ?”$@&@ idea what the issue could be now.
     
  19. ttmott

    ttmott PhD in OCD GOLD Sponsor

    Apr 3, 2012
    Space Coast Florida
    2006 52 Sedan Bridge
    Cummins QSM11
    Many problems like you are going through are due to faulty electrical grounding. Go through all of the engine systems ground connections.... Key switch - when you turn the key switch to the "Ign" position and "Start" position does the ECM get BAT+ power?
     
    Wanderer 290 likes this.
  20. struss3

    struss3 Member

    37
    May 20, 2020
    2000 Sea Ray 210 Signature
    Mercruiser 5.7 TBI EFI
    SN: 0L640144
    Thanks ttmott, I’ll recheck all my grounds again when I get home. I’m assuming I get power when I turn the key to Ign because all my diagnostic steps were good. Not sure about the start position though. I did replace it though thinking I might have a bad switch, but it still wouldn’t start.
     

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