what would cause the front heater to blow cold air in a 2001 pontiac montana
1 of the most common (and inconvenient) problems with the Pontiac Montana is when it has no heat coming from the heater. Not having a functioning heater makes driving much less comfortable, and can be a sign of certain issues.
At the simplest level, there are two master reasons why the heater is not working. If information technology's not coming on at all, it's usually either the blower motor or some other wiring issue. If the heat is blowing, but blowing common cold, it has something to do with the coolant getting to the heater core, or the heater core itself.
Montana No Heat: How the Heater Works
At the simplest level possible, the heater works by passing hot coolant from the engine into a tiny radiator called the heater core. At this signal, the blower motor blows air across the it and the newly heated air blows on to the driver and passengers. If the heater has stopped working in your Montana, this procedure has failed in one mode or another.
Pontiac Montana Heater Non Working: Diagnosis
A word of circumspection: If at that place is no coolant in your overflow, you can refill information technology past adding more than to the overflow reservoir. There is virtually never a situation where you would need to have the radiator cap off of the radiator to add coolant. The exception to that would be when you lot would have reason to believe that the hose going from the reservoir to the radiator is clogged. Anytime you're putting your hand around the radiator or fans in the engine presume that they are hot and that the fans can kick on at whatever fourth dimension, even without your cardinal in the ignition.
Low Coolant
While not having enough coolant may brand your engine run hotter, information technology can too cause your Montana to non be able to create enough heat. Is in that location isn't plenty line pressure, due to depression coolant, then the heater core volition non be able to get any coolant itself.
You tin can verify this by checking the coolant level by taking a peek at the overflow reservoir. The overflow reservoir will be continued to the radiator past a tube coming from the top (usually correct by the radiator cap). It should have separate lines to bespeak "cool hot" and "cool common cold". Some vehicles just have total hot. Never touch the radiator cap unless the vehicle is ICE Common cold.
Bad Thermostat
The job of your Montana'southward thermostat is to regulate the temperature of the engine. It does this by assuasive h2o to enter the engine when it is getting hot, and past keeping coolant from entering while the vehicle warms up.
Sometimes when a thermostat goes bad, information technology stays stuck open. This allows the coolant to continuously enter the engine. When this happens it'll feel similar the heat is barely working, or you may find that it'll piece of work if the vehicle isn't moving, simply if you lot become on the highway it stops working.
If your Montana has a built in temperature gauge, take a await at it and meet if it is in the spot it is normally in after a bit of driving. If information technology looks like it is colder than normal, that's a pretty proficient indication that there is something wrong with the thermostat.
Heater Core
The heater core itself tin can go bad. Over time, they are known to clog and fail. If you have a heater cadre that clogged, it'due south non going to exist able to pass coolant through. Without the warm coolant going through it, there can be no oestrus. A bad heater core can also leak, so watch out for that. Experience your rider floorboard to see if it'southward wet.
Heater cadre's are typically pretty affordable.
Hose to/from the Heater Cadre
There are ii hoses coming to and from the heater core. They both should feel warm or hot to the bear on with the engine on. If one of the hoses is hot, and the other ane is cold, that is a pretty good indication that the heater core is clogged. If the neither hose has whatever rut, y'all may take air in the cooling organization, depression fluid, or low pressure.
Water Pump
If y'all look at your temperature gauge, and the engine is running hotter than normal, but at that place is not heat coming from the heater you may be having issues with the h2o pump. Try taking the vehicle out of gear and revving the engine a trivial. If you feel the heat outset to blow hot for a few seconds that's an indication of a bad water pump or low coolant. Also, the serpentine belt going to the water pump going bad can it not turn every bit fast as it needs to.
Here's symptoms of a bad water pump from Autoblog.
Conclusion: Heat Not Working Pontiac Montana
Information technology tin be tough to find why your Montana'southward heater is blowing cold. But, using the info higher up near how and why a heater would fail can make it a lot easier. If there is anything you would like to add together, delight feel free to leave a comment below.
Source: https://www.700r4transmissionhq.com/pontiac-montana-no-heat/
0 Response to "what would cause the front heater to blow cold air in a 2001 pontiac montana"
Postar um comentário