I have a 98 Jimmy and my heater is working all the time, even when it is positioned to cold. Has anyone out there had this issue? Thanks for all your help,
Your heater core is probably cracked, mine blows heat all the time and it smells a bit like anti-freeze in the vehicle somtimes, its cheap to buy the part but is a huge job to complete as you have to drain the anti-freeze and rip your dash apart
