Yup, thanks... Where did you get it?

 

Come on brother...share the love!

 

same thing me and my mech were thinking he ordered eqiup to check feul volume or pressure? back to tank if it is the ultra low sulfur fuel i hope additives will work my father inlaw is having the same problem 2003 chevy they told him to start using a additive

 

That's why a lot of us is using TCW3 two stroke mixture oil.

MikeyB

 

i used and still do use LOTS of howes additive. my no start problem happened anyways. replaced injectors and good to go. i was told to start using additives also.

 

FWIW you can add me to the hard start list too. The Walbro pump has been in a while now so it's not the LP. And I have an '04-- although engine manufacture is Oct '03. The only difference I can state is that warm start is fine-- won't cold start. It will fire, for what seems only a few cylinders, then die and I start over again...

 

yup im part of the long crank no start club

Truck starts great when cold, but cranks lots when warm. Has been cranking longer than I like for about a month. Put a new filter in it started up lot better for about 2 days. It just took me 35 minutes to get her runnin at the grocery store.

Guess I will be calling dealer tomorrow, runs great when she fires......

 

Thankfully I'm not part of the "no start club" yet. At 44k miles I have no problems starting. I bought the truck used at 14k and ran additives (custom mix of mostly 2-cycle oil) since that first tankful. At 27k I replaced the OEM lift pump with a custom Walbro setup (preventative measure) plus added a 2-micron fuel filter.

I suspect these problems may be due to ULSD, but not directly because of ULSD. When the nation's fuel systems switched over to ULSD it acted as a detergent and cleaned out years of gunk and debris from the delivery pipeline and tanks, some of which wound up in our tanks. With Dodge only supplying 10-micron fuel filters the finer debris passed right through, and under the high-pressures of common-rail system caused a sand-blaster effect on the injectors. Since the '03 trucks most likely have the highest miles of the 3rd gens, the results of this would logically show themselves first in that model year.

This is just a theory and time will tell, but I believe the best preventative measures at this time are to replace the weak OEM lift pump before it fails, upgrade to a 2-micron fuel filter, and running 2-cycle oil as an additive to lubricate the injectors. Just my 2-cents, as I can only speak from my own experience. But so far, so good.

 

This was going to be and still is my last effort before giving into INJECTORS flowing too much fuel.

I had 9-11lb lift pump pressure...added Holley Blue pump, now 22-24lb pressure and still in a No Start situation (actually I can always start it by opening the fuel filter and drain fuel to create an AIR pocket. After the air cranks through... CR pressure peaks to 1,500 - 1,800 and she fires).

So after the LP idea failed, I had decided this week I'm going to block off injectors, one at a time and see if the crank time is affective.

Sunday, I'm 2 hours from home and she's acting up worse normal. I actually ran my batteries down to the point that the cranking speed fell off big time (1st time that had ever happened / my batteries are only 1 year old). Luckily, I had extra batteries. I changed them out and turned the key to see how long this group of batteries could crank. The truck fired right up with just a slightly long crank! It's been 24hrs now and I have started it over 10 times with NORMAL cranking!

I'm just waiting for her to get cranky, again. The tools are in the truck.

I've seen this No Start when it only happens when the truck is warm and I've seen it happen when she's cold, that's the worst. Right now, hot or cold she starts quickly.

 

03 Mad Mack,
I think you hit the hammer on the nail. Since, my first post to this thread I have been reading and rereading alot about on our fuel systems and others in the diesel magazines at our local newstand. I remember coming across a statement made by Dodge or Cummins that said the ECM will not fire the ignition until a certain test voltage was read even with the grid heaters. Now, I just need to find it and post the qoute.

I think that when you changed your batteries you reset the test voltage and now the ECM is allowing the truck to fire. I just now need to figure out how changing the injector is alowing the the trucks to start with out changing the batteries.

Shawn

 

I think I found the TSB (http://dodgeram.info/tsb/2006/14-003-06.htm)
In it, it talks about testing everything that could effect the ignition run circuit and the fuel system, even battery voltage. However, it does not specifiy the exact voltage needed to operate the circuit. It is a bit long but does show how everything must read the same or with-in the tolerances, other wise the truck will not run.

On another TSB (http://dodgeram.info/tsb/2006/08-021-06.htm) in the 06 model year. The Tipm can set the Starter Solinoid Circuit Upper limit fault. This would cause a no start if the fault is view over 250 times.

There is another TSB (http://dodgeram.info/tsb/2005/14-004-05.htm) in the 03 model year which could also be the cause for a lot of the reported no start but goes away with new injectors. I believe it due to the fact the injectors fuel systems is being serviced and over pressure is being bled off since the system is being opened.

Shawn

 

Are these problems just with the high output engine? Are the injectors the same in the standard output as in the high output engine?

Mine is a S/O and I have not had problems with it yet----Knock on wood.

 

oh my god.... add me too. same story for months, now I SIMPLY loosen the filter cap, pull up, push down and it's good for another 2 days or so. been thru 8 fuel filters, then plugged off the relief valve..wow it starts right off for ab out a week.. then.. yup you guessed it. replaced lift pump...wow..it works..3 weeks later, yup it's back. SOMETHING IS GOING ON THAT IS NOT NORMAL. ANYONE WANNA BUY AN 03 DUALLY?

 

my problem has been solved I guess

Dealer replaced three injectors. Now it starts instantly, no long crank, and no more not starting. Thankfully it was still under warranty.

 

jaybone you said blocked relief valve , wandering if we did it the same way, but it still didnt fix the prob. the biggest single thing to make a diff so far is prob. being on a bat. charger on 40 amps. right at 200 rpm see fires every time when the charger was not on spins good to 175 the slowly to 200 but when it would reach it she fires? dont now, if you followed my reading in other post i think ive replaced every thing that is replacable ex, the relief v. which the money on it was rediculous, so i plugged it same story oh and this is no 03 its a 04.5 auto, but even with it on the charger i wouldnt call it 100% but its a lot closer than it was,,, we need a fix may be the guys saing inj. are right just hard to belive with the way they run so good when its runnin and the millage, this trucks still getting 21-21.5 every tank hand cal. and its only got 61000 miles what gives?