Possibly low coolant level or blown heater core.....also check thermostat CHECK COOLANT LEVEL FIRST. IF FULL THEN MOST LIKLY YOU NEED A THERMOSTAT.
it could be the heater is leaking!
You will need to drain the anti-freeze from your 1995 Mazda 626 cooling system. Remove the water lines from the heater core. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
where is the block heater cord located on a Mazda 3 2006
At the back of the engine on the coolant outlet that goes to the heater hoses on the firewall.
The heater on the 03 Mazda Tribute is going in and out. What is the problem and how can it be fix?
If your heater does not work on your 94 Mazda Protege, check the thermostat. You can also check the heater fuse to ensure it has not blown.
Right Rear of engine block. Above Alternator, Below coolant drain plug
how much is to replace heater core on 2004 mazda 6
heater core leaking
At the rear of the engine, directly in the center, just above the transmission. If you look to the right of your firewall, you can find it by tracing the left heater hose down to the back of the engine. This answer is applicable for 1990-2005 Mazda Miatas.
The heater core in a 1994 Mazda MPV is under the dash on the passenger side. The dash has to be taken apart to change out the heater core.
2000 mazda b3000 down stop fan blower Heater up hill