Yes. In my 95' Montero w/ 151,000 miles had a "sweet smell" to it when we turned the motor off. The coolant would somehow disappear from the resivior. The resvivor would be empty every 300 miles. There was no leak on the floor and they pressure tested it and no leaks, upon further inspcetion in was leaking on the Intake manifold gasket. Its fixed now, no leaks bit still an odd stinky smell.