7.3 glowplug function
Postmaster
Joined: Sep 2007
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From: Medford Oregon
If so then your engine electronics has some issues ... after EOT achieves ~ 135 F. the glow plugs no longer activate on restart. The WTS light does come on for a split second as that is just a boot up process on the PCM ... light bulb verification.
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From: Braham MN
I know its old but I am going to argue with brad....
My crew cab has a fancy lil LED for the GP's and I have TDE1 programming on it, if the truck is warm they WILL NOT turn on....supposedly its a function of the TDE1 program.
Diesel Rod
My crew cab has a fancy lil LED for the GP's and I have TDE1 programming on it, if the truck is warm they WILL NOT turn on....supposedly its a function of the TDE1 program.
Diesel Rod
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Joined: Dec 2005
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From: evansville in
My naw4 cycles the darn things everytime with very very minimal change even when its hotter than a 2$ pistol. somebody give me a tde1 and. ill get back with my results.
i have a tde0 coming to try with my chip that is tde1 and wont do jack with my naw4...
i have a tde0 coming to try with my chip that is tde1 and wont do jack with my naw4...
Postmaster
Joined: Nov 2005
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From: San Ramon Ca.
I guess it depends on the PCM. Jim is correct on how things are supposed to function. I know mine works in the fashion he describes. Some do and some don't I guess.
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Postmaster
Joined: Sep 2007
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From: Medford Oregon
Well, I certainly don't know it all. Maybe this is a good time to open up a discussion on year of OBS and if / if not the glow plugs cycle above a certain EOT? My 97, build date DEC 97 acts as described above. I would be interested in other users and their observations on this puzzling issue, why some do and don't.
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From: Braham MN
I LOVE my TDE0 and TDE1 codes. the trans logic is also great, no more TC unlock at idle.
Diesel Rod
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From: Braham MN
No. while traveling down the road if I let off the throttle and the IVC closed the TC will stay locked until I dropped enough speed to drop out of OD. If I was in 3rd it would stay locked down to 25 MPH, it was super sweet for in town driving, I rarely had to touch the brakes. with the NAW4 code as soon as I let off the throttle the TC would unlock at any speed it was SUPER annoying. I think that is one of the reasons there are so many trans/converter failures in these trucks. I find it ironic that everyone I personally know that has a rebuilt trans has a '96 and older truck. TDE0/1 came out with the '97's.....
Diesel Rod
Diesel Rod
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From: Medford Oregon
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