'89 IDI 7.3 not starting - Diesel Forum - TheDieselStop.com
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post #1 of 6 (permalink) Old 11-06-2013, 07:56 PM Thread Starter
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'89 IDI 7.3 not starting

Hey Everybody,

Ive got a 1989 F350 7.3 IDI 2WD that up until recently, was starting just fine. I did a one day 900 mile trip from Tucson to Las Vegas to pick up a welder, and it seems like the trouble started after that. So far I have:
- Installed two new 850 CCA batteries
- Cleaned up all of the grounds and replaced battery cable ends
-Put a new solenoid on it
-Checked the glow plugs with a meter, all dead nuts at 3K ohms
-New fuel/water filter

The starter, I am not sure if it is okay; I know it is supposed to be spinning a minimum of 200RPM, but I have no way to check it. Took it to an Autozone today, inconclusive (and a waste of time)
My WTS light stays on when I try to start it for about 10-12 seconds, but one thing I did notice was I hear no clicking from the controller like I am supposed to, and the volts gauge on the dash does not deflect (when it is supposed to click)
Oddly enough, sometimes Ill take my battery charger after I try to start it once or twice, hook up the battery on the passenger firewall(in engine start mode), and it starts! Sometimes that works, but not always.

Any thoughts? I need to get my rig running again
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post #2 of 6 (permalink) Old 11-06-2013, 09:21 PM
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Take the batteries off and load test them. I have seen new (off the shelf) batteries fail. You may not get the GP's cycling after the truck has been started once for the day.

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post #3 of 6 (permalink) Old 11-07-2013, 08:57 AM Thread Starter
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Yes, I did that already. Guess Ill put a meter on the controller relay today and see what is going on there. Now that I think about it, I have never heard any clicking from the GP controller.
I talked to my step dad yesterday (he used to be a diesel mechanic) and he told me "not to worry" about the glow plugs, as I live in Arizona, and even now the temps are usually about 70-75 degrees when I try to start it...I am not so sure about that, though.
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post #4 of 6 (permalink) Old 11-07-2013, 09:12 AM
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Even when the temps are in the 100s, the truck starts much easier with glow than without.

1992 F250 XLT 4x4 Super Cab 7.3 IDI E40D 3.55 ATS 088 4"R.C 360k
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post #5 of 6 (permalink) Old 11-08-2013, 09:52 AM Thread Starter
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yes, that is what I thought. I took one of the plugs out yesterday and cycled them and no heat at that plug. So I took a look at the controller and one of the big lugs on it was loose, like it was broken off inside so I didn't even bother to test it, I ordered a new one...keep my fingers crossed and hope that's it
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post #6 of 6 (permalink) Old 11-09-2013, 05:55 AM
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Did you ground the plug body?


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