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Quick glow glowplugs.
Instead of wait to start, you should have the curly cue glowplug light.
Most don't see it until it's way below freezing.
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On mine, it only flashes the curly Q very briefly most starts.

Also, unlike the older cars, the new electronic control engines are pretty much automatic. You can turn the key and release it even if the truck hasn't started. The electronics will start the truck and delay the start if the glow plugs need to heat up.
 
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Discussion Starter · #4 ·
On mine, it only flashes the curly Q very briefly most starts.

Also, unlike the older cars, the new electronic control engines are pretty much automatic. You can turn the key and release it even if the truck hasn't started. The electronics will start the truck and delay the start if the glow plugs need to heat up.
So, the driver initiates a start sequence and the vehicle starts itself according to its electronics. Pretty awesome.

Do glow plugs continue to sustain their glow during normal engine operation? Or is the glow a one time deal to get the engine started?
 

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one time deal when starting engine and the OAT dictates the cylinders need some heat to cause the fuel to ignite.
 

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On Page 42 of the Diesel Supplement manual would explain it better then me.

In short the truck's computer turns the glow plugs on when they need to be, The curly que light means that when you go to start the engine you should wait till the glow plugs have time to heat up for the first time. It doesn't mean that the glow plugs are not on when the curly light is off.


FYI: Cut&Paste

Glow Plug System
Glow Plug Control Module (GPCM)
The GPCM is located under the
passenger side battery box.
The glow plug system is electronically
controlled by the PCM. The PCM
monitors the ambient temperature,
ECT and BARO sensors to control
glow plug operation.
The GPCM controls the glow plugs
and the reductant system heating
elements.
When required, the PCM supplies
a signal to the GPCM which in turn
supplies current to the glow plugs.
 
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