Heater gauge reading cold and minimal heat into car

Is the temperature gauge reading about 210 degrees? If the temp is low, the thermostat may be stuck open and not allowing sufficient heat. Also check the heater hoses to see if they are hot to the touch. If one feels hot and the other is cold or only warm, heater core is becoming clogged.

you don't have one what is wrong ? no heat? no forceful air coming from the fan? cold air blowing heater functioning? temperature gauge reading very low and as you drive it drops to cold? you must tell me what is wrong and I'll be able to take it from there

Hi, if the temperature gauge read zero then the thermostat is gone.
If it's just no heat and the gauge on the dash is reading normal coolant temperature then it may be the Coolant Temperature Sensor. If the heater core was gone there should be a leak inside the car somewhere. Hope this helps

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These details will help.
Thanks.

If the engine temp gauge reads like normal, then you either have a bad heater core, or the valve that feeds the engine coolant to the heater core is stuck shut. If the temp gauge seems to be on the cold side, or fluctuates from normal to cooler than normal and back, it may be your thermostat is stuck open.

If the coolant level (antifreeze) level is low there may not be enough fluid in the system for the temperature sensor to register a proper reading ( think of it as holding an oral thermometer just outside of your mouth).

Insufficient fluid passing through the heater core (small fan that blows through a small heated radiator) may not be enough to produce heat.

However: At increased speeds the engine may be heating what little fluid there is to a point to supply heat to the heater core, and register on the temperature sensor.

either a faulty temp sending unit or a thermastat stuck open assuming all wire connections are good. if heater blows hot id lean towards the temp sending unit. please rate me trying to make a buck

As long as your gauge is still moving up, there's no real problem. You have heat coming from the heater. It's only a problem if it's getting too hot. What's going on is that you don't let the vehicle run long enough, and it's so cold outside that the engine stays cold. It raises in temp when your stopped because there's no airflow through the radiator. The thermostat just heats up the engine block, and won't change the reading on the gauge. When this goes bad your car will overheat in just a few miles.

Switch ig. on, ground the sender unit wire for about 3 seconds see if the temp. gauge moves, if so change sender unit, if not then it is a faulty gauge reader.

Sounds like you have a clogged heater core. Sometimes heater cores can be flushed, but more times than not, it has to be replaced. If you've replaced the thermostat and your lower radiator hose is always cold, chances are it is the heater core. Hope this helps! Have a great day!