How does the heating system in a Pontiac Montana work?
In order to troubleshoot the heating system in a Pontiac Montana, it’s important to understand how the heating system works in this vehicle. The hot antifreeze is picked up at the water pump and travels through a hose to the heater core.
Where does the antifreeze go in a Pontiac Montana?
The hot antifreeze is picked up at the water pump and travels through a hose to the heater core. The hot antifreeze travels through the heater core and out the other side and sent back to the thermostat by another hose. The heater blower and the heater core, along with the air conditioning evaporator, are all encased in a housing under the dash.
What kind of car does Pontiac Montana have?
I have a 2005 Pontiac Montana (not SV6). This winter I have noticed more than previous winters….when you run the defroster you get air, but it never gets very warm. You can change the front to the floor and get lots of hot air, change the front to the A/C vents and get lots of hot air. There is hot air in the back for the passengers.
Where is the blower motor on a Pontiac Montana?
Remove the bottom of the dash on the passenger side to gain access to the blower motor. The blower motor resister is right next to the blower motor, just to the left side and toward the rear. Pull the electrical connector off and turn on the ignition key. Turn on the fan for the blower motor. Check the connector for power on one of the terminals.
In order to troubleshoot the heating system in a Pontiac Montana, it’s important to understand how the heating system works in this vehicle. The hot antifreeze is picked up at the water pump and travels through a hose to the heater core.
The hot antifreeze is picked up at the water pump and travels through a hose to the heater core. The hot antifreeze travels through the heater core and out the other side and sent back to the thermostat by another hose. The heater blower and the heater core, along with the air conditioning evaporator, are all encased in a housing under the dash.
Remove the bottom of the dash on the passenger side to gain access to the blower motor. The blower motor resister is right next to the blower motor, just to the left side and toward the rear. Pull the electrical connector off and turn on the ignition key. Turn on the fan for the blower motor. Check the connector for power on one of the terminals.
Why is my fan not working in my Pontiac Montana?
Whether the fan speed is in automatic or manual, the speeds are achieved by the use of a blower motor resister in close proximity to the blower motor. The most common problem is that the blower motor will not work or will work only on one speed.
Why does my Pontiac Montana heater not work?
Vehicle blows only cold air when stopped. The higher the speed, the warmer the air temp. Can feel the temp cool as you slow and stop. Recently took to mechanic who couldn’t find a problem but cleaned heater core which did allow for warmer temp while driving.
Is there a heater on my 99 Montana?
On my sons 99 montana, no heat control. a/c, air flow, etc. works great but no heat… any suggestions would be greatly appreciated. daughter in-law and 4 grand kids are gonna freeze to death this winter. Our 2003 Pontiac Montana will only blow warm air from the heater when the vehicle is moving. Vehicle blows only cold air when stopped.
Why does my 2000 Montana overheat all the time?
We have a 2000 Montana and have the same thing with the temp gauge. It usually is caused by a slow leaking lower intake manifold. Common in GM 3.1 and 3.4 V6’s Just keep a check on the coolant level. My husband and I have the same problem but ours eventually overheated on the interstate one evening.
When did we replace the condenser on the Pontiac Montana?
In 2003 we replaced the condenser and the compressor @ $2000.00. This past Friday July 28,06 we brought it in again to the dealer for what was diagnosed as a cracked condensor, again! Cost to fix $1100.00. We didn’t have it done. It was not a pretty seen at the dealership. They told us we needed to talk to GM about the problem.
Where is the fan resister on a Pontiac Montana?
The blower motor resister is right next to the blower motor, just to the left side and toward the rear. Pull the electrical connector off and turn on the ignition key. Turn on the fan for the blower motor. Check the connector for power on one of the terminals.