2007 Pontiac Montana SV6 (Canadian), Engine is a 3.9L (3900)
Thermostat is not located at end of top rad hose, housing has 2 intakes and filler cap into same housing.
Try this link:http://www.justanswer.com/pontiac/6r6kd-pontiac-montana-sv6-hi-i-left-montana-2007-gm.html
Search Pontiac Montana SV6 Questions
Pontiac Montana SV6 Experts