Chevrolet Repair: heater, montie carlo, heater hose

Question
2002 montie carlo blower blowes but no heat. one heater hose hot otherone cold  

Answer
Hi Bill, What has happened is the heater core is plugged. The passages inside the core are very small and will collect debris from the coolant. To fix this you need to remove both hoses from the engine at the pipe fittings. Now run water through from both ways with your garden hose, go slow at first then increase after you get a good flow. Now flush out the engine to remove all the debris. Fill with coolant and your all set.

Have a Great Day

Mark