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If you are referring to the temperature of the air coming from the heater, the most likely cause is low coolant in the cooling system. If that is the case, coolant is not flowing through the heater core when at idle, or stopped.
Easiest fix is to check the coolant level (engine cool) at the radiator cap. Make sure it is absolutely full. Once that is done, also check the level at the overflow tank. Make sure it is at least half full at all times. This helps to keep the coolant level "topped off" so that there is no air in the system.
Good Luck, Greg
What else can I help you with?
How do you program garage door opener in 2002 Chevy Venture?
how do I program a garage door opener for a 2002 chevy venture
What size tires do you need for a 2002 Chevy venture?
My 2002 Venture van uses 205/70 R15 tires. Dennis
2002 Chevy Venture towing capacity?
3500 pounds
Does a 2002 chevy venture have a timing belt or chain?
Chain.
Where is the airbag module on a 2002 Chevy Venture?
The air bag module on 2002 Chevy venture is located between the driver side front seat and the passenger side front seat under the carpet
Where is the cabin filter on a 2002 Chevy Venture?
in be hide glove box
Why wont the fan come on in a 2002 Chevy Venture?
Which fan? there are 4.
How do you recharge air conditioning system in a Chevy venture van?
i can,t find the acumalator on my 2002 Chevrolet venture
2002 Chevy venture brake light doesnt work?
Same problem - bulbs are good but the driver side brake light will not operate. Also the horn stopped working at the same time.
How could the 2002 Chevy venture rear wiper be stopped?
To stop the rear wiper on a 2002 Chevy Venture, you can turn the wiper switch to the "Off" position. If the wiper continues to operate, check the fuse or the wiper motor for any issues. Additionally, ensure that the wiper arm is not obstructed and that the switch isn’t stuck in the "On" position. If problems persist, it may require professional inspection.
Where can I find the schematic of a 2002 Chevy Venture air conditioning unit?
It is important to have a diagram when making any changes to a car. A schematic for a 2002 Chevy Venture AC unit can be found in this vehicles maintenance manual.
Why does your 2002 Chevy venture blow hot air from rear vents when ac is on?
i own a 2001 Chevy venture warner bro. edition. and the rear air blows hot while the air is on up front.. i had it checked out and the rear has no ac its just a fan for the back..go figure. my customized Chevy express full size van does the same thing
