Saturday, November 19, 2016

DT466E No Start Help, Part 1

I am posting no start help  right here on The Toolbox. This is another excerpt from
my No Start Diagnostic book, in response to so many basic questions I receive 
on no start problems. Many of these problems are due to basic things anyone can check.

This is from the part of the book dealing with a no start when there are no codes 
and the check engine light is not on.

This will be a two-part post, with part 2 coming next month. 
Check back often for news and information.


No Start diagnostic: basic fuel system checks, part 1.

A diesel engine needs only three things to start; air, fuel injected at the right time, 
and compression. Compression is partly a function of cranking speed, so batteries 
or a starter that are too weak to crank the engine fast enough will cause a no start. 
The engine needs to crank at a minimum of 130 rpm in order to start, so make sure it 
does and use a battery charger if needed.
     The most common causes of no start in the DT engine are low oil level, 
an ICP (injection control pressure) problem, and fuel issues. It is important to check the
simplest, easiest things first. If no code or light is set a fuel problem is often the cause.
     It is worthwhile to at least look at the air filter or preferably to shine a light through it 
to be sure it isn’t plugged. Also check the fuel filter, making sure it is full of fuel. 
An empty filter that makes a sucking noise when it is loosened is a sure sign of a 
restricted fuel line, filter, or tank pickup. If in doubt, replace the filter.
     If a fuel delivery problem is suspected always check the pre-filter screen for 
debris blockage. On pre-2004 engines it is a small bowl about the size of a D-cell battery 
behind the fuel filter. On EGR engines it is on the bottom of the fuel filter canister. 
Both bowls contain a cleanable screen and are sealed by an O-ring.
     If your 4000 series has dual fuel tanks, make sure there is fuel in the 
passenger side tank. The engine usually draws fuel from that tank, and an 
electric fuel pump transfers fuel from the driver side to keep the same level in both.  
If the transfer pump fails the passenger tank can be sucked dry.
     While on the subject, smell the fuel and make sure someone didn’t fill the 
tank with gasoline. You would be amazed at the number of times professional mechanics 
run into this, and nobody ever knows who did it. Too much gasoline will cause 
a no start or at minimum rough running, low power, and amazing quantities 
of foul-smelling smoke.


Check back next month for part 2

Truck Platooning is Just Around the Corner

While self-driving car and truck technology is probably a little way off, it appears that truck platooning is just around the corner.

Here is a little video that shows Peloton company's plan to enable platooning NEXT YEAR!

Peloton platoon technology

In partnership with Peterbilt, Cummins, and ZF TRW, the company says the technology will allow a 7% savings in fuel between two trucks running together.

This video shows how the system can search for an available "volunteer" truck to join another while on the road. Thus, eventually any two trucks headed in the same direction could link up to save fuel.