Towing Roar Uphill

[Redfour5]

Anyone else notice this...feature? This only happens when I'm going up a mountain/steep grade and only at a certain point. It may be the fan, I do not see any particular stresses occurring per the guages but at a certain point, as the grade goes up I get this "roar" that continues until you crest the grade then it stops almost immediately as soon as the pressure is off the engine going down. It does not happen when I am NOT towing or on the flat...ever.

I'm thinking it is normal. It does not appear to be transmission or engine as such but something peripheral.

 

[ChemTrails]

Normal. Cooling fan. My 6.4 does the same uphill.

 

[Redfour5]

I thought so, just wanted to get some others experiences on this... Thanks

 

[gimmie11s]

Your coolant temp gauge is likely reading 217-225 or so when that happens. Sound is normal and is the fan doing it's work.

 

[jetrinka]

Certainly can be an alarming noise if you've never heard it before . Totally normal though.

 

[Redfour5]

Anyone else notice this...feature? This only happens when I'm going up a mountain/steep grade and only at a certain point. It may be the fan, I do not see any particular stresses occurring per the guages but at a certain point, as the grade goes up I get this "roar" that continues until you crest the grade then it stops almost immediately as soon as the pressure is off the engine going down. It does not happen when I am NOT towing or on the flat...ever.

I'm thinking it is normal. It does not appear to be transmission or engine as such but something peripheral.

I hear it on this TFL run

on the Ike Gauntlet at around the 5 minute mark. So, I'm not too worried. They later comment on it as the fan at 9 minutes. AND, this Ike run when you consider they are at full capacity in a non-aspirated at well over 10,000 feet. I'm good with a similar set up and I'll never be at full weight...I hope. The wife still wants an ever bigger fifth wheel.