Engine/Transmission (1998.5 - 2002) truck died now no start

[cahammer]

have a friend of mine with a 2000 2500 5 speed 4x4 truck just up and died on him while driveing down the road checked fuel pressure 12psi while cranking it cracked an injector fuel to the injector but not alot of pressure like i c with my p pump codes could only be read off of the dash and only one code p1693 go figure truck will not start just picking your brains on this any suggesions going to check the rest of the codes with a scanner tomarrow

thanks

 

[n7gxz]

Sounds like the VP44 has died.



Kevin

 

[MAllen1]

The code states in the book that there has been a fault generated in the pcm, not the ecm. If you know someone at either the dealership or at an independent that has a computer that can crack into the pcm, it'll be able to tell you a little more. But, i'll would have to come to the same conclusion from what you told, it sounds like the VP44.

 

[fox]

Loosen at least 3 lines at the injectors and crank it for 20 seconds.

If little or no fuel comes out of some lines, with more at others, it is likely the pump seezed and is done/broke.

Did it quite when he lifted the throttle after a power run?

 

[cahammer]

it died on him just driveing down the freeway so he says

 

[MAllen1]

Ask your friend if he has a smarty or any other piggyback computer on the pcm. I've noticed that a lot of people, with the smarty unit especially, would throw a 1693, 1689, or both. It's just a thought.

 

[Mishkaya]

A few things you can look at. First, if the Crank Position Sensor dies, truck will not run (should throw a code, but has been known not to). Also check to make sure the Pump relay is OK (on my '01 it is interchangeable with the horn relay). Also, as has been stated, crack several fuel lines to make sure all are getting fuel. The pressure won't be much when cranking BTW. Hope some of this might help.

mishkaya

 

[Chief USA]

Not to be a smart***** but are you sure there is fuel in the tank? The reason I ask is that my truck died driving home today for no reason. The fuel gauge indicated at least a 1/3 of a tank but no fuel pressure. The fuel pressure gauge may not always be indicating accurately either. I checked my trip computer and the mileage since the last fillup said 648 miles. Some quick math told me there was no fuel in the tank.



After pumping about 10 gallons of fuel into the tank from the bed tank, the lift pump would not push the fuel to the filter canister, so I opened the top and bumped the starter. When fuel came out, retightened but the o-ring on these newer 7 micron filters expanded and would not go back in the cansister without pinching, so I had to pull out a spare. Still not start, so bleed fuel to the injector pump. Still not start so I bled fuel up to #1 injector. Fires right up but a little grouchy firing on one cylinder for a few revolutions. Lesson, don't trust the fuel gauge.



The other lesson... ..... be REAL careful with the fuel syphon lines and pumps. Wives get REALLY stressed out when they get sprayed with diesel fuel.

 

[Mishkaya]

Not to be a smart***** but are you sure there is fuel in the tank? The reason I ask is that my truck died driving home today for no reason. The fuel gauge indicated at least a 1/3 of a tank but no fuel pressure. The fuel pressure gauge may not always be indicating accurately either. I checked my trip computer and the mileage since the last fillup said 648 miles. Some quick math told me there was no fuel in the tank.



After pumping about 10 gallons of fuel into the tank from the bed tank, the lift pump would not push the fuel to the filter canister, so I opened the top and bumped the starter. When fuel came out, retightened but the o-ring on these newer 7 micron filters expanded and would not go back in the cansister without pinching, so I had to pull out a spare. Still not start, so bleed fuel to the injector pump. Still not start so I bled fuel up to #1 injector. Fires right up but a little grouchy firing on one cylinder for a few revolutions. Lesson, don't trust the fuel gauge.



The other lesson... ..... be REAL careful with the fuel syphon lines and pumps. Wives get REALLY stressed out when they get sprayed with diesel fuel.

Seems doubtful as the OP stated 12PSI while cranking. That was my first thought also as it is a very common problem; and once the pump is run dry it takes forever to get it primed...

mishkaya