Glow plug operation

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Jan 16, 2007 | 10:50 AM

badger2196

Thread Starter

Senior User

Joined: Mar 2005

Posts: 173

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From: Larkspur, CO

Glow plug operation

Basic question - when the WTS light goes off but the ignition is still on, are the glow plugs still on at that point or do I need to cycle the ignition key to get the WTS light (and the glow plugs) back on?

Jan 16, 2007 | 10:56 AM

wlihntr

Postmaster

Joined: Jan 2004

Posts: 4,758

Likes: 7

From: colorado

the glow pugs stay on for up to a few minutes after the WTS light goes off, depending on how cold it is. so no you do not need to re-cycle them

Jan 16, 2007 | 10:18 PM

jtharvey

Lead Driver

Joined: Oct 2004

Posts: 7,413

Likes: 1

From: Columbia, MO

Correct. The GP's will stay on for up to 2 minutes after turning the key. The WTS light is no indication of GP's going on or off. When it's really cold out, I usually just wait 30 seconds or so before cranking. If you think about it, cycling the key actually gives the air in the cylinders a few seconds to cool off before the GPs come back on.

Jan 16, 2007 | 11:37 PM

kbeefy

Cargo Master

Joined: Aug 2003

Posts: 2,332

Likes: 442

From: Eastern Washington

I always turn on the key and go check the mail, scrape the windows, shovel some snow or something, give those things a good 30 seconds or better to cook.

Jan 16, 2007 | 11:56 PM

Tenn01PSD350

Post Fiend

Joined: Feb 2006

Posts: 11,892

Likes: 2

From: Middle Tennessee

Quote:

Originally Posted by kbeefy

I always turn on the key and go check the mail, scrape the windows, shovel some snow or something, give those things a good 30 seconds or better to cook.

Check the mail??? What time does that run there? How much snow can you shovel in 30secs? Sorry, couldn't resist. Just funning.

Jan 17, 2007 | 12:09 AM

ballbandit

Tuned

Joined: Apr 2006

Posts: 331

Likes: 4

From: grorgetown,in

I was thinking the same thing you are one fast person to do all of that in 30 secs. hahahahahaha! Just messing with you. It's all about having fun on here.

Jan 17, 2007 | 10:17 AM

2danglong

Mountain Pass

Joined: Oct 2003

Posts: 207

Likes: 1

From: Desert, Arizona.

I used to cycle my GPs several times prior to starting in cold weather. It helped.

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Jan 17, 2007 | 10:38 AM

99 7.3 towrig

Senior User

Joined: Aug 2006

Posts: 127

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From: Maryland, WVU

hope its not off topic, but I heard somewhere that if you dont wait for the WTS light to go off when the engine is warm an just crank it right away that you could damage the glow plugs? i still wait for the light to go off even though i know the engine is good an warm, just wundering if i should still wait aft the engine has reached operating temp. thanks

-Kurt