99 7.3L Possible Bad CPS and Fuel Filter?

[brendanmitchell]

Hey everyone, I'm a new member to this forum, but I've been following it for a while now. I have a 99 7.3 and have been having a few problems with it cutting out on me, but never when driving. So today I was on the interstate, heading to pick up a new stack for it, and it died on me... It didn't die fast, like turning the key off, more like running out of fuel, kinda gradual. It was also doing a little hicc-up before it died, like it wasn't getting enough fuel. It happened four times, the first three times I was able to start it back up and make my attempt to go back home, but on the 4th time, it wouldn't start back up and I had to get a tow back to base. From what I've read in other posts, this kind of problem usually relates to the fuel filter and/or cps. So, I figured I'd just replace them both. I haven't done it yet, but I'm just curious as to if I did the right thing, or if there's anything else that I should check.

Maybe it had something to do with the speeds I was traveling at; 60+ mph, I don't know?

Funny thing is, when I got back to base and was getting it off the tow truck, I started it right up, and backed it right on down the ramp. No problem at all. So I'm just thinking it's the fuel filter and cps, just wanted your guys' opinions on the matter, as I'm still learning the ropes to fixing my own vehicles, especially this diesel.

[BryanSR]

Once you rule out the CPS and fuel filter, try checking the resistance of the solenoid on your IPR valve when it shuts down. I went through that same problem recently, it would shut down when it got hot and start right up after it cooled 30 to 40 minutes. Replaced the solenoid and it's been fine ever since. The part that sucks is you can't buy the solenoid seperate, only with an IPR valve. I just took the solenoid off of the new valve and put it on the old IPR stem so I didn't have to mess with draining the oil reservoir. I'm new to this diesel thing also, and learning as I go!!

[brendanmitchell]

Originally Posted by BryanSR

Once you rule out the CPS and fuel filter, try checking the resistance of the solenoid on your IPR valve when it shuts down. I went through that same problem recently, it would shut down when it got hot and start right up after it cooled 30 to 40 minutes. Replaced the solenoid and it's been fine ever since. The part that sucks is you can't buy the solenoid seperate, only with an IPR valve. I just took the solenoid off of the new valve and put it on the old IPR stem so I didn't have to mess with draining the oil reservoir. I'm new to this diesel thing also, and learning as I go!!

Awesome, thanks brother! Is that IPR an expensive fix?

[BryanSR]

I found one for $170, but most were in the $230 to $350 range. Does anyone know if you can get just the solenoid anywhere??

[brendanmitchell]

So, I drained the fuel bowl, put in the new filter nice and tight, bled the system, and then started it up. It started right up, but blew white smoke, and died within the first 30 seconds. Started it up again and let it idle for a minute or two, then drove it around the parking lot. On the first lap around, it basically lost power halfway, best way to describe it. The SES light came on, and I retrieved the codes just a little bit ago. We kept going, and on the second time around the lot, it was running normal and the power was back. I figured it was from not being started in the past couple of days. After that, I change the CPS. Again, truck started up fine, but died while idling. We checked the oil level, and it is below the line that says operating range. I know I need an oil change and plan on doing it before I go and drive the truck. Here are the codes I received.
P1209 and P1211
P0603 power circuit interruption on (KAPWR) circuit; which I found out is more than likely because I have an EDGE programmer in the truck.
P0340 CMP circuit fault

Any and all help is appreciated, guys. I'm getting worried