APU issue

932600

{"text":"Do any y'all have a possible solution for my apu, it'll run for about 5 minutes and then shuts off with the eng fault display. I checked the manual and all it says is that it is either low oil pressure/low coolant/low fuel pressure. The oil and coolant is good. Changed both fuel filters, still shuts down and pops the circuit breaker on the control box. Thanks ahead of time for any ideas.","videos":"[]","link":"{}","pics":"[]","canComment":true,"externalShare":false}

971399

{"replyToPid":0,"replyTo":"","text":"You do not need an APU, son, they sound like riding mowers with engines wide open all in my ear with exhaust blowing out the side of your truck into my window when I am parked trying to sleep. "}

970093

{"replyTo":"","text":"did you prime the fuel? there's a bolt on the fuel line that allows you to bleed all the air out. If not, just keep restarting it, mine has to shut off about 50 times before it runs smoothly and gets all the air bubbles out.","replyToPid":0}

970093

{"replyTo":"

962976 发表于 2020-06-07 15:35:39 air in fuel will not cause shutdown. If 8 circuit fuse is good.\ncheck wiring going to alternator and starter.

","text":"air in fuel lines does cause shut down, unless your APU can run on air...without combustion it dies...","replyToPid":381730}

962976

{"replyTo":"","text":"check your 8 circuit fuse or shutdown switch.  probably shorted wires. look for rubbing and green open wire","replyToPid":0}

53461

{"replyTo":"

971399 发表于 2020-06-07 15:27:46 You do not need an APU, son, they sound like riding mowers with engines wide open all in my ear with exhaust blowing out the side of your truck into my window when I am parked trying to sleep.

","text":"what's up with all you drivers that want to sleep in total silence? You do know what career this is, right? Were you forced into it, and didn't know how loud everything is?","replyToPid":381722}

932600

{"replyTo":"","text":"I think I should be asking if you're talking about the coolant temperature sensor or something else","replyToPid":0}

971399

{"replyTo":"

612134 发表于 2020-06-07 22:55:06 no problem man 👊

","text":"CM. Continue Mission ","replyToPid":381853}

968843

{"replyTo":"","text":"This is a temperature sensor. Goes bad or even rattled loose and it will shut down apu after a few minutes ","replyToPid":0}

932600

{"replyTo":"","text":"Someone also suggested that even though the fuel filters have been replaced recently, I might want to change them again to be certain the unit is getting the proper fuel delivery","replyToPid":0}

932600

{"replyTo":"

612134 发表于 2020-06-07 15:34:19 I do not know anything about apu's never ran one. But is this on your new rig? did you get it from a dealership? is it covered under the warranty?

","text":"No, ended up taking it to someone I completely trust. Just had to wait for him to open his shop back up. Still on the lookout for a new rig. When I do, this ole girl is going in for a complete overhaul and then I have a guy who wants to run for me. In the meantime, he is content to stay where he is. I did check out a couple of trucks at the place you suggested.","replyToPid":381729}

853102

{"replyTo":"","text":"Have u check belt","replyToPid":0}

971398

{"replyTo":"","text":"Try hitting the rest button under your bunk. Should be a 12x12 box with a button on it. ","replyToPid":0}

932600

{"replyTo":"","text":"Belt was replaced about 45 days ago.  The reset button is what keeps popping out, didn't mean to say it was the breaker.","replyToPid":0}

932600

{"replyTo":"","text":"I'm going to crack open the fuel lines and make sure there's no air in them.","replyToPid":0}

932600

{"replyTo":"","text":"Will do, thanks for the help.","replyToPid":0}

612134

{"replyTo":"","text":"I do not know anything about apu's never ran one. But is this on your new rig? did you get it from a dealership? is it covered under the warranty?","replyToPid":0}

962976

{"replyTo":"

932600 发表于 2020-06-07 15:25:45 I'm going to crack open the fuel lines and make sure there's no air in them.

","text":"air in fuel will not cause shutdown. If 8 circuit fuse is good.\ncheck wiring going to alternator and starter.","replyToPid":381720}