I don't spray it directly into the motor I spray it barely into the intake hat so it has to go through the air filter

And one of these times it's going to go KABOOOOOOM and you will then regret you used ether!

-Enjoy
fh : )_~

your year truck the controller does not (see ) the heated glow plugs like the later year trucks do.. your wait to start light is not a indicator of heating the glows...you have no power to the glows or they are all burned out...there is two circuit's of power to the glows one for the low current controller and one high current, to heat the glows...if your glows were heating it would blow off your air cleaner...the high current comes from the start solenoid and is switched buy the glow plug relay that is switched buy the controller, this system has a fault....or it would start....as we know, the engine runs...

I try starting it without every time but normally it won't do then I put the either in after the glow plugs have been off

this has been asked a few times, but you never answered the question. have you tested to see if power is going to the glow plugs recently? because it really really sounds like the glow plugs are not getting power, or are bad.

As said, still risky. If it gets into the chambers where it needs to be, and the glow plugs are working, the glow plugs will ignite the starting fluid.

I've checked the glow plugs several times and they all work. And I usually spray the either after the glow plugs have been off for a second

You did a test light test of the Glow Plugs ...

Just so you know, BOTH of these Glow Plugs PASS a test light test!
https://cimg9.ibsrv.net/gimg/www.for...f199372058.jpg

But not an Ohms test or I suspect a burn test for I didn't even try to burn test them.

-Enjoy
fh : )_~

your glows are not working....and you are not listening... and its still broken, and your complaining and you don't understand, we are trying to help you...just because the timer in the controller is working, and the wait to start lite is on...that doesn't mean the glows are getting hot. you must verify that you have a good connection, one that will flow 30 amps, to the high current connection on the glow relay...read the stickys at the top of the page.....

you tested the glow plugs. not to see if they are getting power. good glow plugs do nothing if they are not getting power.

I've checked several times and the glow plugs are getting power

ok. just checking, because you said they were good, or they were working, but you never actually said they were getting power.
i have seen way to many times where people claim the plugs were good and working but when they finally check for power they come back with their tail between their legs and admit there was no power out of the relay.

I talked to an old guy who has a 6.9 and he said it sounds like the lift pump... Bought one and after I get time to put it in it might start or I might just have a new lift pump

I counted the seconds my WTS light is on and it's 20 seconds after its been setting all day and 8 or less when it's been driven around... I think 20 seconds is too long any help?

Do you have a volt meter?

If you do ...
Set it up for 12v DC (unless it's auto ranging)
Connect the Red+ lead to the positive battery post.
Connect the Black- lead to a glow plug connector without removing it from the glow plug. (Slip the connector up a little)

Have a helper turn on the key, While the Glow Plugs are active take note of the voltage.

Post the voltage.

-Enjoy
fh : )_~