My name is Matt. I work for an auto repair shop in Arizona. We have two
> tow trucks, but International 4700 diesels. One has been out of service for
> about 6 months. The problem is that while we are driving it, it cuts out
> intermittently; it will drive, then the "WAIT TO START" light will flicker
> on and the engine will stall, immediately following the light will go off
> and it will drive again. It keeps this up: off, on, off, on, off...on until
> it stalls and we have to start it. Finally, the truck wouldn't start
> anymore, and it sat for 6 months. Today, the same exact thing happened to
> our once-working truck. Exactly the same thing. Our mechanics have looked
> at it, checked the fuses and done other things, but we are stumped. We even
> had our 6 month truck at a diesel shop and THEY couldn't figure it out. I
> don't know if you've ever heard of this problem, but we are desperate, now
> with 2 out of our three (and both flat beds) tow trucks are out of
> commission, and we hope you can help us.
>
>
>
> Thank you.
Sounds like you need to take them into a International/Navistar dealer for proper troubleshooting and repair.