Thermo King SB3 No Go after sitting

you may have developed a slight leak in the fuel supply allowing the fuel to run back down the line into the tank. I don't have my unit right here to take a foto...but there is a manual pump and also a bleeder screw that you crack open till you get fuel flow...

 

It could be the shut down solenoid, do you hear a loud clicking noise before it starts to crank? Sometimes this solenoid get stuck, had the same problem on a reefer & this will stop the engine starting.
Mine worked sometimes, sometimes not...

You could also after sitting for 2 days try priming the unit see if the fuel pump is primed before starting it.

 

I use to have a 2000 model SB III and it did the same thing. I can't remember exactly what parts Thermo King said it needed. I just remember them saying it would cost about $400, so I just lived with it.They told me they had a lot of problems with the SB III doing that. Mine would usually crank, then die. When I tried it again, it would crank and run fine.

 

there are rubber fuel lines going to the injectors. check them for cracks and leaks sucking air and leaking. We have had those problems

 

Mine was doing the same thing. REplaced shut down solenoid that was leaking just a bet and it seems to have helped.

 

some of TG refers are equiped with electric fuel pumps. I used to replace them with cummins electric pump ore with external car electric gas pumps (from Mecedes for exmple).

Pump is usually located near refer fuel tank, it is on for some seconds when refer engine sturts up ore sometimes it is on all the time engine runs (depends on software)....

 

http://www.mcpthermokingparts.com/fuel-pumps/shop.product_details/26/eny_fly_small_list.tpl/491.html

 

Good day SLCTrucker.hope you are fine i noticed the last days what you mentioned i hear a louad noise as it's cranking how can I fix it thanks you can pm or email me at hfs0914@gmail.com thanks