Starting problems!

[JLElectric]

I have the 1670 code. clear it and it comes back. Taking a while to start in the morning, but the rest of the starts during the day are quick starts. And its about 65 degrees at night . When I turn the key on to wait to start the radio and a couple other things click off and on. I have noticed white or blue smoke when the truck fires off. Anyone have these problems??

[tjshant21]

bump i think i have the same issue

[billelf123]

Originally Posted by JLElectric

I have the 1670 code. clear it and it comes back. Taking a while to start in the morning, but the rest of the starts during the day are quick starts. And its about 65 degrees at night . When I turn the key on to wait to start the radio and a couple other things click off and on. I have noticed white or blue smoke when the truck fires off. Anyone have these problems??

P1670 Electronic Feedback (EF) Feedback Signal Not Detected

IDM provides the EF output signal to the PCM...one could be going bad, my guess is the Injector Driver Module (IDM) needs to be tested! Good place to start your trouble shooting.

[tjshant21]

the only time i have the problem is when the truck sits for more than 10 hours or more any suggestions?

[billelf123]

Originally Posted by tjshant21

the only time i have the problem is when the truck sits for more than 10 hours or more any suggestions?

Are you getting the same code or any code at all?

[tjshant21]

no codes as of a couple months ago. I have had the problem since nov i have replaced the injector cups(had diesel in my coolant), Injector o-rings, pcm, glow plugs, glowplug module.

[billelf123]

Originally Posted by tjshant21

no codes as of a couple months ago. I have had the problem since nov i have replaced the injector cups(had diesel in my coolant), Injector o-rings, pcm, glow plugs, glowplug module.

6.0 or 7.3?

Sounds as if you may still have some oil leaking off somewhere. Have you checked your fluids to make sure they are clear of both oil and anti freeze? Also I would check the HPOP reservoir level in the morning before you try to start it. This will be a good indicator whether you are leaking off oil internally. If it was an external leak you would see it.

If everything looks good with your oil I would do a fuel pump pressure test, have your injectors tested again and move on to the glow plug relay circuit, glow plug relay, and the glow plugs!

[tjshant21]

its the 7.3. i think i might check the fuel filter bowl in the morning just to see if the fuel drained down over night as well as check the HPOP resevoir. do you know what the pressure should be.

[tjshant21]

By the way is that gds spring pretty easy to install

[billelf123]

45 PSI Minimum...Measure at the top RT cylinder head