Hey guys, new to the forum as its my first Mazda. 2011 Mazda 3 GX Sedan 2.0 L4
Currently have no heat at idle, only when Rpm's are above idle.
Just changed thermostat & coolant level is good; did the burping procedure for air removal. (2500 rpm cap off car jacked up) Also flushed the heater core, had clean water coming out. Still have the inlet hose much hotter than the outlet though.
Other thoughts on the problem:
Water pump bearing/impeller shot? Pulley doesn't seem to have wobble to it and is not noisy
Serpentine belt tension etc
Blend door or heater control valve ( I don't know much on these 2)
Degas/coolant fill bottle clogged/ or cap no good
System doesn't seem to build pressure even when hot
Air locked ? There is no bleed screw/rad cap or temp gauge makes it difficult
Any ideas appreciated, don't want to throw parts at it ! haha
Thanks
Currently have no heat at idle, only when Rpm's are above idle.
Just changed thermostat & coolant level is good; did the burping procedure for air removal. (2500 rpm cap off car jacked up) Also flushed the heater core, had clean water coming out. Still have the inlet hose much hotter than the outlet though.
Other thoughts on the problem:
Water pump bearing/impeller shot? Pulley doesn't seem to have wobble to it and is not noisy
Serpentine belt tension etc
Blend door or heater control valve ( I don't know much on these 2)
Degas/coolant fill bottle clogged/ or cap no good
System doesn't seem to build pressure even when hot
Air locked ? There is no bleed screw/rad cap or temp gauge makes it difficult
Any ideas appreciated, don't want to throw parts at it ! haha
Thanks