Discussion:
Yale GLP060VXNGSE

I have an ongoing issue with this machine. Unit has only 1600 hrs of use & the regulator has been replaced twice as have the fuel injectors. It's lpg fueled & has the GM 2400 vortec engine. Now the unit is acting up again- having symptoms of having 2 fuel injectors being "sticky"- they stick open- causing the machine to miss on those cylinders.

Customer has gotten a certificate from his lpg supplier that he is purchasing HD-5 fuel- the fuel is from Sunoco.

I've suggested an in-line thermostat to the lpg regulator & cooling vents in the hood assy to cool the unit off, but he resists- saying that the factory would have installed such items if they were necessary.

Does anyone know of any independent testing labs that can confirm the fuel is in fact HD-5? Also- does anyone know of any injector cleaning product that can be added to the fuel? Lastly- does anyone know of a source to have the lpg injectors cleaned? At $170 each- they start to get expensive- Thanks for your help
  • Posted 18 Oct 2013 23:15
  • Modified 18 Oct 2013 23:16 by poster
  • By bbforks
  • joined 1 Mar'12 - 1,437 messages
  • Pennsylvania, United States
bbforks (at) Hotmail (dot) com
Customers love technology- until they have to pay to fix it!
Showing items 1 - 3 of 3 results.
Ed- correct me if I'm wrong- this is how I diagnose ign/ fuel injector issues:
engine has miss- determine which cyl is missing.Then swap ignition wires to see if miss stays on this cyl or follows wire. If stays on this cyl, then swap spark plugs & do the same test again. If still stays on this cyl, then swap fuel injector & test again.

This is now the 3rd time I've had a service call for this unit, done the above procedure & have the miss follow the injector. The first time it happened, I was given permission to replace all 4 injectors. Unit ran good for about 400 hrs then began to miss again. The second time around, I was only allowed to replace the faulty injector. Within a month each of the remaining injectors needed to be replaced, 1 at a time at the customers request. That was about 500 hrs ago.
  • Posted 20 Oct 2013 11:44
  • By bbforks
  • joined 1 Mar'12 - 1,437 messages
  • Pennsylvania, United States
bbforks (at) Hotmail (dot) com
Customers love technology- until they have to pay to fix it!
how sure are you it is a fuel problem?
I have recently seen a truck with the same motor, where the symptoms were the same as yours, and it turned out to be one of the coils failing.
  • Posted 20 Oct 2013 04:39
  • Modified 20 Oct 2013 04:39 by poster
  • By edward_t
  • joined 5 Mar'08 - 2,334 messages
  • South Carolina, United States
"it's not rocket surgery"
Anyone?.....
  • Posted 20 Oct 2013 01:19
  • By bbforks
  • joined 1 Mar'12 - 1,437 messages
  • Pennsylvania, United States
bbforks (at) Hotmail (dot) com
Customers love technology- until they have to pay to fix it!

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Fact of the week
The black box flight recorder was invented by Australian scientist David Warren in the mid-1950s. While initially met with indifference in Australia, his invention gained international recognition, particularly in the UK, and is now a mandatory piece of safety equipment on all commercial aircraft.