Ok thanks...researching the black pipes, someone said possibly running rich on fuel and talked about a bad turbo speed sensor. My pilot brought up...
Also, I should add that... The idea is to get the Trap 1 diagnosed at Peterbilt and hopefully my warranty covers that as it states the...
Hoping someone can shed some light on this as I’m booking my truck into Peterbilt tomorrow that hopefully will be covered on the warranty I...
So, I’m in the process of signing the papers on purchasing a 2014 389 Pete today. Whoever ordered the truck new decided against air horns....
The problem here is that my headlights stay on when the truck is running and parked, even if I’ve turned them off. To be clear, being that I’m in...
Yeah I got it taken care of...exactly what it was thx.
Haa!...never mind, I think I got it. It was the a/c high pressure switch. Gave it a few minutes to watch the fan at 1200 rpm while parked (its -15...
So, replaced the a/c high pressure switch, fan still runs all the time. What's next I wonder.
No problem at all. I'll pull the switch off in the morning and see how it goes. Thanks again.
Thanks for your help, I really appreciate this. Was in to talk to the dealer today...so that high side a/c sensor is that one I posted a pic of...
Solenoid is letting air through to fan so that's good. Having a difficult time locating the a/c high pressure sensor though. Found a green capped...
So the fan needs air to it turn the fan off? And solenoid cuts the air when it's told engine is getting hot enough to turn the fan back on?
Thank you for that...I'll check it out later today when I'm parked.
Engine fan stays on all the time. Fan clutch is only 7 months old. Moves in/out when firing up so seems to be working properly. Disconnected air...
I see this has been asked but still need help. 2013 Western Star DD15. Fan runs all the time. Fan clutch is 7 months old. Moves in/out when...
