Voltage Drop / Lights Dimming on Cold Start - Dodge Diesel - Diesel Truck Resource Forums



24 Valve Engine and Drivetrain Discuss the 24 Valve engine and drivetrain here. No non-drivetrain discussions please. NO HIGH PERFORMANCE DISCUSSION!

Voltage Drop / Lights Dimming on Cold Start

Closed Thread
 
 
 
Thread Tools Search this Thread
Old 10-18-2006, 05:57 PM   #1  
Administrator / Scooter Bum
Thread Starter
 
Shovelhead's Avatar
 
Join Date: Sep 2002
Location: Northern VA
Posts: 9,059
Voltage Drop / Lights Dimming on Cold Start

It's time to "sticky" this one at the top of the forums again.

If this describes what you're experiencing when lighting off the Cummins on these frosty mornings,.......
Don't worry, it's normal.

The Cummins uses a pair of 12 volt grid heaters in the intake tract
(imagine two large toaster elements glowing bright red)
that preheat incoming air for easier combustion.
The Ford & Chevy use glow plugs inside the combustion chamber.
As the relay cycles the grids on & off, the large amp draw causes the volt meter reading to drop, and the lights to dim when the relay turns on the juice.
The relay timer will turn off the heaters when the intake temps hit a preset limit, or when the vehicle exceeds a preset MPH (usually between 15-25 mph). edit


Don't panic
.........just another of the experiences you can chalk up to being a member of the Cummins Club.
Shovelhead is offline  
 
 
Closed Thread

Related Topics
Thread Thread Starter Forum Replies Last Post
Voltage Drop / Lights Dimming on Cold Start Shovelhead Performance and Accessories 2nd gen only 62 04-13-2016 05:16 PM
voltage drop and dimming lights Mr.Dodgeman 3rd Gen Engine and Drivetrain -> 2003-2007 8 01-02-2008 06:35 PM
Voltage Drop / Lights Dimming on Cold Start Shovelhead 3rd Gen Engine and Drivetrain -> 2003-2007 0 10-25-2006 06:21 AM
Lights Dimming After Cold Start Shovelhead 3rd Generation Ram - Non Drivetrain - All Years 1 12-24-2003 03:35 PM
MOVED: Lights Dimming After Cold Start Jack Thorpe 3rd Gen Engine and Drivetrain -> 2003-2007 0 10-21-2003 01:27 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 02:18 AM.


Copyright 2017, DieselTruckResource.com
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.