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ventilation

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Symptoms of a Bad or Failing AC Compressor
Common signs include higher than normal cabin temperatures, loud noises when the compressor is running, and the compressor clutch not moving.
Symptoms of a Bad or Failing Vent Oil Separator
Common signs include smoke coming from the exhaust pipe, the Check Engine Light coming on, excessive oil consumption, and sludge under the oil cap.
How Long Does a Vent Oil Separator Last?
The engine in your car can only run when the right number of controlled explosions are performed. During the explosions, there are a number of gases that are produced that will...
Symptoms of a Bad or Failing Evaporation Vent Solenoid
Common signs include the Check Engine Light coming on, pressure in the gas tank, and failing an emissions test.
How Long Does an Evaporation Vent Solenoid Last?
In order to do their part to help reduce emissions from escaping into the atmosphere, car manufacturers developed the evaporative emission control system, also known as the EVAP system. In simple...
How Long Does an Evaporative Emission Control Canister Last?
There are all kinds of features built into your vehicle that help ensure that amount of gasoline vapors that escape from your vehicle are kept to zero or a very...
Why Does the Air Coming Through My A/C Vents Smell Bad?
Over time your car A/C system can start to smell unpleasant. If your A/C system smells bad check for mildew in the vents or install a new air filter.
4 Essential Things to Know About Deflectors (Sun, Vent, and Window)
Adding deflectors to your vehicles is a great way to keep rain, sleet and snow channeled away from open windows and from your sunroof – great for when you want fresh air even in poor...
How to Flush Out Your Heater Core
If your car’s heater doesn’t seem to be working too well, it might...
Symptoms of a Bad or Failing AC Pressure Switch
If the AC is cutting on and off rapidly, unable to cool the cabin, or failing to turn on the compressor, you should replace your AC pressure switch.
Why Does My AC Rattle When I Turn It On?
Common reasons why a car AC system makes a rattling noise is due to a failing AC compressor, worn serpentine belt, or worn out AC compressor clutch.
4 Essential Things to Know About Your Car’s Seats and Seat Covers
Car seats come standard in all vehicles. They are made from durable materials so as to withstand prolonged use. Car seats come with various options when choosing materials, special options, and style of...

Related questions

Question
Cannot remove heating /ventilation module to get access to the heater core
Hey there. You should be able to remove the heater core by itself. Once you have the dashboard pulled forward, you will need to disconnect the hoses on the heater core. Next, you will want to remove the bolts on...
Question
thumping sound from rear
Charcoal canisters don't become clogged, although in exceptional cases, they can become saturated with liquid fuel which ruins their ability to store fuel vapors. If the premature shut of the refueling nozzle is occasional that is not an issue but...
Question
Ventilation system seems to have some issues
Hello. It sounds like you have two separate issues going on here. The vent issue comes from the lack of engine vacuum making it to the interior control system. Most of the time this is as simple as finding the...
Question
Sour, stale smell coming from air vents
This is most likely a cabin filter that needs to be changed. Your car is equipped with an air filtration system that works similarly to your engine's air filter in that it filters the outside air as it flows into...
Question
Engine shakes at idle, burning smell, only in cold temperatures
Hi there. The vibration could be the engine mounts loose on your engine or transmission. The engine knocking noise could be the engine pinging as there is not enough fuel to burn and the cylinders are colder than normal. This...
Question
Heating and air problem
Hi. In your owner's manual, you should find a picture and the location of the fuse panel. The manual will also give you the location of the blower motor fuse and relay. First, check to see if the fuse is...
Question
Blower motor isn't working
Hi there. The fact that no air blows at idle but once the car moves you get flow makes it sound like the blower motor isn't really turning at at all, but rather you have the door set to outside...
Question
I'm needing help in replacing the vent control cable on my car
Hi there. When replacing the vent control cable, you will have to remove the floor ducting in the dash and when all of the brackets are loose to the cable, you would be able to disconnect it from the blend...
Question
Heater and vent issues
Hello. The symptoms you are describing are commonly associated with a problem with the heater core or blend door actuator. If the heater core is plugged or there is not sufficient coolant flow to the core then the heating capacity...
Question
White smoke coming from engine and into the car from vents upon starting the car and then clears.
Hi there, Check the fuel system on your engine to see if the fuel pressure regulator is working properly. It seems that either the fuel pressure regulator is putting a higher pressure on the fuel injectors or the cylinders 2...
Question
Black soot and bad smell coming from the heater vents.
Hi there. Sounds like the cabin air filter to the heating and a/c system is degrading and peeling apart. The stuff that is coming out into the cabin area is a filter full of dirt and debris. I recommend replacing...
Question
My air vents sometimes stop working.
Hi there. Anytime something is not functioning all the time and is randomly shutting off, then there is an issue with the relay of that circuit. Check the relay to the fan motor circuit and see if there is power...
Question
My dog vomited in my car and now there's a heater vent smell
Hi there - you don't mention the make, model or year of your vehicle, but most cars and trucks now have a "cabin air filter" which filters air re-circulated in the passenger compartment. I would replace this filter, and, while...
Question
Hi! I Was driving on the highway with the A/C on and noticed some fumes/smoke coming through one of the vents and it smelled like exhaust.
Hi there. Check the blend doors to the air conditioning and heating system. If the outside blend door actuator is not working properly or if it's open to the outside air, it will draw air from inside the engine compartment....
Question
How do I replace the air flow control door within the vents?
Hi...the absolute best, instruction by instruction, illustrated tutorial is in the GM Factory Shop Manual for the 1996 Jimmy and I checked quickly on Ebay and they are readily available. Due to the amount of detail, and inability to post...
Question
Smoke coming out of the vents into the cabin compartment.
Hi there. The green ooze that you saw was indeed coolant. The issue could be the heater core hoses or heater control valve is leaking coolant and the ventilation system on your air conditioning system to the open air outside...
Question
Gas pump continuously shuts off when filling up tank.
The vent hose on the fuel tank to the fuel filler neck is plugged up and is not allowing the air (fumes) to cycle through the system as the fuel is being poured. To verify this, the next time you...
Question
When I put gas in, after a few seconds it spits it back out.
Hi there. The fuel vent hose on the fuel filler neck is plugged and not allowing the fuel to vent as the tank is filled up. You may have to remove the rubber hose to the tank and take a...
Question
Filling up at the gas station.
The issue is the purge vent hose on the fuel filler neck is either leaking or it is plugged up causing the fuel system to vapor lock making the fuel not flow into the fuel tank properly. Check the hose...
Question
I have a 2004 Pontiac bonneville, and air blows cold on the passengers side of the car, but not on the drivers side. Any ideas?
Hi there. There is a blend door that keeps the air blowing on the cold and hot sections separate. The blend door maybe stuck between the evaporator and the heater core causing the temperature difference. Also, the air duct on...

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