glow plug selectable gauge

[Cummins2014]

What I heard from others is, just push the button twice and it starts up immediately.
Tried that?

Ozy

FYI, learn something new every day Pushed it twice ,fired right up. The thing I don't know either is when do you use the grid heater.

If I just fired up my old Superduty 7.3 , and didn't wait when it was fairly cold, it did not run well. So my habit was to let the light go off before starting. I have started this truck down in single digits , and nearly 0 degrees , but have always let it do its thing. That I will continue to do . The thing is for me now, that I know I can just push it twice to start, is that a good thing or bad .

 

[kthaxton]

It's for Emissions only, the ISB starts fine without it far below of freezing temperatures.

I've noticed that when it is really cold, it definitely has difficulty firing up if you don't let the grid heater do its thing. It fires, but not easily, and it runs a bit rough initially.
I agree though, certainly not 'needed' above freezing temps.

 

[Ozymandias]

I use my gridheater only below freezing, on everything above i just crank it.
Did the same on all my Diesels in every vehicle all my life long with the one exception of the not-direct injected ones, they refuse to start without aid. And Caterpillar Diesels are picky to, they want to be pre heated.

The deepest temperature i started the RAM without the gridheater cycle was -25F when my battery was down and i didn't had the power to let it cycle, there was only enough power left to start it immediately. That was a luck that it fired up after 5 second of cranking. Running rough like diesels do in great cold but it was running, goooooood engine.

 

[Ozymandias]

For information only, the gridheater only heats the air, there is no benefit for the mechanical parts of the engine from it.
It's not "easier" for the mechanical parts of the engine with it, the stress of a cold start stays the same with or without.
Only for the operator's ears it is nicer with it as the first combustions are somewhat softer with the gridheater.

 

[DonFitzwater]

I know the 3rd gen trucks had a programmed fuel system failure indicator that turned on the "Wait to start" squigly icon if too little rail pressure was observed while decelerating. It was also accompanied by the check engine light.

OP, if it does it again, try and take a picture of it.

 

[CEppinger]

This is probably what he saw, I took this on an empty side street going 12 mph, I have had this happen 4 or 5 times over the last 3 years. I then stopped, turned off engine and restarted with the WTS symbol gone. I suspect the Grid Heater relay is sticking on , will get a new one and replace soon.

 

[DonFitzwater]

This is probably what he saw, I took this on an empty side street going 12 mph, I have had this happen 4 or 5 times over the last 3 years. I then stopped, turned off engine and restarted with the WTS symbol gone. I suspect the Grid Heater relay is sticking on , will get a new one and replace soon.
View attachment 116654

Any idea why your check engine light is on?

 

[CEppinger]

Any idea why your check engine light is on?

Probably for my NOx sensor U029E that was replaced under warranty, I took that picture April 2018 and then cleaned the connections to the relay/solenoid. Still need to get a new relay from Geno's.

 

[firefighter_2000]

Both times I’ve had to replace batteries, I’ve had this exact symptom come up 1-2 days before they died completely.

 

[AH64ID]

Historically if the intake manifold temp is below 66° the grid heaters will operate. I haven’t checked the tables on my 18 yet.

Well I can't see the grid heater tables on anything newer than 2009. In 2009 66°F was still the cutoff for intake manifold temp.