Cummins ECM & grid heater?

Posted by Don in Missouri [69.69.205.226] on Friday, November 09, 2012 at 09:22:57 :

Is the intake heater needed to start in cold weather, or is it just there for emissions?

The ECM cycles the heater below 59 F before starting and after.

I've started my 4bt as cold as 7 degrees with no heater. I've never tried anything colder w/o a heater. I've started my Dodge as low as -15.

A friend has a boat with twin 8.3s. It cycles the grid heaters until the engines obtain 1200 RPMs. There is no "Wait to Start", and one would assume this pleasurecraft is only operated in fair weather.

Follow Ups:

• Re: Cummins ECM & grid heater? - Ggg 13:27:29 11/10/2012
• Re: Cummins ECM & grid heater? - Ggg 13:19:51 11/10/2012
• Re: Cummins ECM & grid heater? - Russ Roth 17:14:01 11/09/2012
• Re: Cummins ECM & grid heater? - Chris Olson 16:15:47 11/09/2012
• Re: Cummins ECM & grid heater? - ToddW 12:37:15 11/09/2012
  • the boat has heat exchangers - Don in Missouri 14:26:30 11/09/2012
  • Every engine is different - Don in Missouri 14:17:27 11/09/2012
• Re: Cummins ECM & grid heater? - Marty 12:18:38 11/09/2012
  • Re: Cummins ECM & grid heater? - Paul(in NY) 15:56:16 11/09/2012
    • Re: Cummins ECM & grid heater? - Mike in Pa. 16:21:56 11/09/2012
  • What size tires you running there? - Don in Missouri 14:11:45 11/09/2012
  • Re: Cummins ECM & grid heater? - ToddW 12:40:26 11/09/2012
    • Re: Cummins ECM & grid heater? - Marty 16:31:22 11/09/2012
      • Re: Cummins ECM & grid heater? - Don Williams 18:32:55 11/09/2012

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