Lights Dimming After Cold Start
#1
Administrator / Scooter Bum
Thread Starter
Lights Dimming After Cold Start
Symptom:
Volt meter fluctuating and lights dimming after startup on cold morning?
This is Normal
Good info for new diesel owners on cold weather operation.
Cold Weather Diesel Opearation
Instead of using Glow Plugs like the Fords & Chevys, the Cummins uses 2 grid heaters in the intake tract to preheat the incoming air, each pulling 95 amps for a total of 190 amps! At 12 volts, that's nearly 2300 watts, one whopping load on the battery!
This will cycle on-off until the computer turns off the heaters at a preset temperature, or you exceed 25 mph.
Check your owner's manual for more info.
Ed
Moderator
3rd Gen Forums
(thanks to Tom Hybiske for the updated info)
Volt meter fluctuating and lights dimming after startup on cold morning?
This is Normal
Good info for new diesel owners on cold weather operation.
Cold Weather Diesel Opearation
Instead of using Glow Plugs like the Fords & Chevys, the Cummins uses 2 grid heaters in the intake tract to preheat the incoming air, each pulling 95 amps for a total of 190 amps! At 12 volts, that's nearly 2300 watts, one whopping load on the battery!
This will cycle on-off until the computer turns off the heaters at a preset temperature, or you exceed 25 mph.
Check your owner's manual for more info.
Ed
Moderator
3rd Gen Forums
(thanks to Tom Hybiske for the updated info)
Thread
Thread Starter
Forum
Replies
Last Post
Shovelhead
Performance and Accessories 2nd gen only
62
04-13-2016 05:16 PM
jperello001
3rd Generation Ram - Non Drivetrain - All Years
13
12-21-2007 03:48 AM
Shovelhead
3rd Gen Engine and Drivetrain -> 2003-2007
0
10-25-2006 06:21 AM
Shovelhead
24 Valve Engine and Drivetrain
0
10-18-2006 05:57 PM