GMC transmission issue
I'm not sure where to post this, but we have a 2012 GMC 3500 Sierra and a Cyclone 3010 5th wheel 35 foot toyhauler. Lately we have been experiencing "clunking" when the transmission drops a gear, ...
Forum Discussion
porkchop1221 wrote:
I forgot to mention that sometimes I feel like I 'smell' burning after hauling the RV for a while. I told DH this and his answer was, "It's a diesel, they smell." which I don't agree with. And at the last two (5 hour drive) - when we parked I heard a 'clicking' noise when the truck was in idle. DH doesn't think it's anything but I do.
Are you familiar with the term "regen"? THis is when the truck every few hundred miles injects diesel fuel into the exhaust to burn off soot built up in the DPF (big filter on your exhaust). THis is likely what you are smelling. Read your manual if your not familiar with it.
When the truck is NOT in regen however you should not be getting any burning smells as these trucks burn very clean. You can stick your nose up the the tailpipe on these new trucks and it smells as good as the air coming our of your laundry drier. No joke... I have the same truck.
