Coolant smell

[DCadigan]

My father in laws 02 3500 CTD stinks like coolant when he turns it off. Did a die test, no coolant leak. Probably needs to be pressure tested to see if he blew head gasket. Is there anything else that would cause coolant smell?

 

[MWiacek]

It could be the water pump look under the truck at the waterpump there is a hole that will leak if the pump goes bad. If it wet or if you see any thing like a stain were it leaks but from the heat it dries up. I worked at a shop and we always did pressure test didn't believe in the dye.

 

[K5IP]

If you smell it inside the cab, it may be a leak in the heater core.

Rog

 

[BHolm]

Two other fairly common sources are the little connector hose on the pass side above and behind the turbo agaisnt the block. It is only a couple inches long, wrapped in shiny heat tape, check the clamps.



The other is the back freeze plug on the drivers side, this requires looking from underneath with a light right up under the intake.