• Welcome to The Truck Stop! We see you haven't REGISTERED yet.

    Your truck knowledge is missing!
    • Registration is FREE , all we need is your birthday and email. (We don't share ANY data with ANYONE)
    • We have tons of knowledge here for your diesel truck!
    • Post your own topics and reply to existing threads to help others out!
    • NO ADS! The site is fully functional and ad free!
    CLICK HERE TO REGISTER!

    Problems registering? Click here to contact us!

    Already registered, but need a PASSWORD RESET? CLICK HERE TO RESET YOUR PASSWORD!

no fuel flow out of injection pump

Ok. I'm guessing you tried a spare good pmd as mentioned to the original guy in the first response.
Is yours mounted remotely or to the IP?

Have you removed and cleaned the engine grounds, especially the one on the rear of the passanger head?
 
There is a screen in the back of it that might clog up.

Remove the incoming line and the rear to inspect and clean. This is theoretically possible to plug it up, but can not imagine the horrors of your fuel filter and tank it would take to do this.

But you can not "blow" through the IP. It is a 4,000+psi pump.

Once you know you have fuel going to it, and nothing coming out of the injection lines, the next question is what do you see happening with the clear return line.

From there you can test fuel shut off solenoid, replace pmd with known good,etc.

Kinda need to follow the steps 1 at a time, then go to the next thing. You are not answering questions, so diagnostics over a thousand miles away is difficult.

Keep in mind the #1 misdiagnosed part of these is people putting on a new injection pump when not needed... there are several supporting components that tell the IP to work. If any are bad, is will not work.
 
On my truck, I couldn't get fuel through the ip without Turning the engine over. I unplugged the fsd so it wouldn't try and crank during all this. Crack open the injector lines until you get fuel at the injectors while trying to crank. Since you got fuel to the ip you might wanna try this.
 
On the ip pump the fuel line going to ip I can't blow in it
As Will said before you won't be able to blow through the injection pump..... The little (deck of cards sized) black box that comes mounted on the side of the injection pump (known as the PMD) is known for going bad and will result in the IP not pumping fuel like it should.

A bad Lift pump (LP) which is an electric pump that is mounted to the frame rail under the drivers door can also prevent you from being able to get the air out of the system.

I take it that your first post had a typo in it cause it said "I can seem to get fuel...." I assume that you meant "I can't seem..."

If my assumption is wrong and you do have fuel to the injectors but the truck still won't run then you would have a different set of problems.

There are some great folks around here that will help you out....probably need a complete description of the problem to help keep them from having to just guess with some of the most common solutions.....
 
You said in a earlier post that you have fuel at the filter. Have you took the filter out to look at it. I would just replace while you got it out if you haven't already. Have you taken the hose off that runs between the ip and the fuel filter to take a look and see if it's clogged up.

If the hose checks out the next step would be to pull the screen from the pump and check it out. I'm with @Will L. on the screen though. I would think you would have a mess of a fuel system if the screen in the ip is clogged.
 
There should be a thread on just bleeding the fuel system . Generally speaking the batteries have to be fully charged as you will be pushing them hard . Secondly , I like to remove the glow plugs when cranking . This reduces the drag on the batteries and allows for a faster cranking speed . You can sit in the seat and see a misting from the engine . This indicates fuel from the injectors . At this time , replace the glows and it should start . It might run rough but it should start . This is a very general list but it should help .
 
It's me on my 97 diesel turbo chevy 6.5 got all the glow plugs out how long to I crank on it when can I tell is fuel coming out?
 
It could take several times...crank ten fifteen seconds...let starter cool for a few min. It should be pretty obvious when they get fuel.....kind of a misty cloud of diesel under the hood.......... You can also loosen some of the fuel lines going into the injectors till they get wet with fuel. I am usually surprised at how long it takes to get the air out...
 
With a fully charged battery and all the glow plugs out it should turn over fast enough that you couldn't miss the mist coming out of the glow plug holes.

Like what was said above make sure you let the starter cool for a few minutes after a 30 second run time.
 
Last edited:
Back
Top