SOURCE: 2005 Chevy astro van, 4.3L A/c, Blower motor,
It could be a bad blower motor - tap on the blower motor with the end of a hammer when you have the switch in the on position - if it comes on then it is a bad blower motor. If it doesn't come on I would check to make sure you are getting power and ground to the HVAC control head.
SOURCE: 2000 chevy astro van blower
Yes it could but also check under the hood because it is a very common problem for a vaccumm line to come unhooked causing this problem. Hope this helps, Allen, swiftautorepairs.com
SOURCE: chevy astro van heater blowes only cold air
the problem is probably the heater core, it can become clogged with dribris. this stops heat from the engine getting to it and then no heat.
SOURCE: My 1995 chevy astro van shakes every time i break
you either have bad brake pads or the bolts are loose that hold the front steering suspension on.
SOURCE: Where is the Fan motor relay on a 1995 chevy astro
check the blower resistor near the blower motor,
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