Smoking while ascending a mountain

[JerryR]

Our 2001 Fleetwood Flair had periods of white smoke coming from the rear as we were ascending a mountain. Does anyone know what might cause this?

 

[Rich W.]

White smoke is typically coolant. Oil burns blue, excessive fuel makes black smoke. How many miles on it? Also are you viewing this as the driver in the mirrors/back up cam, or was this reported by someone following you?

 

[Rich W.]

Just a wild guess, but is this on a GM chassis? Also how many miles on it?

 

[JerryR]

White smoke is typically coolant. Oil burns blue, excessive fuel makes black smoke. How many miles on it? Also are you viewing this as the driver in the mirrors/back up cam, or was this reported by someone following you?

It has 99,000. It was seen by my wife who was following in our toad.

 

["EZ"]

Gas? Diesel? Rich is right, white smoke is typically coolant. If it's a gas engine you may have a head gasket beginning to fail. If it's a diesel engine you may have a problem with a cylinder sleeve being pitted causing it to leak coolant into the combustion chamber. Is your coolant low? Anything in the overflow tank?

 

[Rich W.]

its either an F53 or Workhorse 7.4, and my guess is its not an F53.