Ok guys, I have a truck that just WONT START!!!!!! YOu can burn the batterys down and this thing just wont start.

But if you squirt a lil starting fluid in the intake it will fire over and run fine, pull fine, and idle fine...but kill it and immediately try and restart it and your screwed.

It wont start on a cold engine, or a warm engine...either way you need starting fluid which I KNOW is bad on the turbo and motor

ive been fighting with it for two days....i just replaced the fuel pump, fuel filter, air filter and pulled the 6year old edge programmer.

The truck is an 03 3500 dually has 150,000 miles factory exhaust, and this is its first major problem

I checked and its getting fuel to the rail, and there is NO blown fuses anywhere. You bump the starter and you can hear the fuel pump pumping till its primed...open the banjo bolt on the fuel rail and bump the starter and fuel will squirt everywhere...so its getting fuel...

If the injectors were bad it would run bad or not run at all....but it runs like a top

cant be the lift pump...it runs the truck fine....

its almost like there is a fuel shut off sensor somewhere screwed up...i just dont get it.

I hate the nearest dealer so i really dont want to go there.

WHAT THE HECK IS THE PROBLEM?

Thanks in advance guys

DE

 

If you crack the banjo bolt on top of the rail nect to your rail pressure sensor do you see fuel pushing out when cranking?? If so that valve is bad and not allowing the system to build pressure to get the motor to fire.

 

your not building rail pressure its probably your fca or injectors. odds are on an injector. they can work great but allow fuel to pass. you can try to cap each one at a time to see if it starts to try and isolate the bad one unless its more then one

 

Drain your fuel filter bowl half way, fill back up with Seafoam. Put two additional bottles in the tank. If all goes well, it will be hard to start at first but should crank over. You will bide yourself some time.

Most likely, you have an injector leaking by. Do a flow test, replace the faulty injector.

 

Injectors are no good Get a new set! Had same problem same milage same truck.

 

Starting fluid is the last thing you want near this engine. It combusts in an explosion and torques the rings over like torsion bars, and knocks off the top edge nearest the cylinder wall. That will make the engine starting fluid dependent very quickly, and it will also no longer pass DEQ if you live in a communist state that does vehicle inspections.

If this problem came on suddenly after fuel system service, then I suspect you simply did not adequately bleed the air out of the fuel after changing the filter. Go back to the manual and follow the iinstructions to the letter and the problem will most likely go away.

I disagree with the injector replacement recommendation unless the problem crept up on you over time and kept getting worse until it would no longer start, you knew it had clean fuel filters, and/or you are hearing a woodpecker in one or more of the injectors.

When these injectors go they do so gradually and you feel performance go down the toilet, or they go suddenly with a loud clacking noise in one or more of the injector units themselves which is usuallly accompanied by really lousy fuel economy.

However, you are at the outer limits of injector life, and should be planning injector replacement. If you have a local injector shop, talk to them about a rebuilt set first - properly rebuilt versions are far better than the OEM's sold new, can be expected to last at least twice the life of the OEM's, and cost a fraction of new. That will give you more money for the new taxes necessary for the health care of illegal aliens!

I would also stay away from performance injectors unless your injection pump has been upgraded with new body seals and control valves or you may well end up with mystery fueling, performance, and starting problems that are hard to diagnose but related to normal pump wear.

It is also a very solid idea to install a 5 micron fuel filter to keep everything perking along for a very long time.

 

Never Ever use starting fluid on cummins engines!

 

sorry but the injectors can go suddenly had that happen on my 03. the problem is that they are letting the fuel by pass. doesnt mean they are cracked or nozzles are bad. its an internal issue