# No heat while idle **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** astro, chevrolet\ **Created:** [December 20, 2010, 8:27pm UTC](https://community.cartalk.com/t/no-heat-while-idle/58970 "2010-12-20T20:27:21Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![teezyman](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@teezyman](https://community.cartalk.com/u/teezyman)\ **Post date:** [December 20, 2010, 8:27pm UTC](https://community.cartalk.com/t/no-heat-while-idle/58970/1 "2010-12-20T20:27:21Z")
My air/heat only blows when I am driving, not at all while idle, also my defrost wont blow at all? Can someone help me? Its a 1997 chevy astro ---
**Author:** ![\_Deleted\_User1111116](https://avatars.discourse-cdn.com/v4/letter/_/ac91a4/32.png) [@\_Deleted\_User1111116](https://community.cartalk.com/u/_Deleted_User1111116)\ **Post date:** [December 20, 2010, 8:30pm UTC](https://community.cartalk.com/t/no-heat-while-idle/58970/2 "2010-12-20T20:30:03Z")
The fan/blower isnt working. Did you check the fuses ---
**Author:** ![teezyman](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@teezyman](https://community.cartalk.com/u/teezyman)\ **Post date:** [December 20, 2010, 9:21pm UTC](https://community.cartalk.com/t/no-heat-while-idle/58970/3 "2010-12-20T21:21:51Z")
yes i did ---
**Author:** ![\_Deleted\_User1111116](https://avatars.discourse-cdn.com/v4/letter/_/ac91a4/32.png) [@\_Deleted\_User1111116](https://community.cartalk.com/u/_Deleted_User1111116)\ **Post date:** [December 20, 2010, 9:32pm UTC](https://community.cartalk.com/t/no-heat-while-idle/58970/4 "2010-12-20T21:32:26Z")
Then its the switch or the fan itself. Check for power to the fan. If there is power to the fan the fan is junk ---
**Author:** ![teezyman](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@teezyman](https://community.cartalk.com/u/teezyman)\ **Post date:** [December 20, 2010, 10:39pm UTC](https://community.cartalk.com/t/no-heat-while-idle/58970/5 "2010-12-20T22:39:55Z")
How do I check that? ---
**Author:** ![\_Deleted\_User1111116](https://avatars.discourse-cdn.com/v4/letter/_/ac91a4/32.png) [@\_Deleted\_User1111116](https://community.cartalk.com/u/_Deleted_User1111116)\ **Post date:** [December 20, 2010, 10:49pm UTC](https://community.cartalk.com/t/no-heat-while-idle/58970/6 "2010-12-20T22:49:46Z")
With a test light. ---
**Author:** ![teezyman](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@teezyman](https://community.cartalk.com/u/teezyman)\ **Post date:** [December 20, 2010, 10:51pm UTC](https://community.cartalk.com/t/no-heat-while-idle/58970/7 "2010-12-20T22:51:09Z")
you lost me ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/48514_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [December 20, 2010, 11:21pm UTC](https://community.cartalk.com/t/no-heat-while-idle/58970/8 "2010-12-20T23:21:32Z")
If he lost you, then you need to take the vehicle to a mechanic. ---
**Author:** ![\_Deleted\_User1111116](https://avatars.discourse-cdn.com/v4/letter/_/ac91a4/32.png) [@\_Deleted\_User1111116](https://community.cartalk.com/u/_Deleted_User1111116)\ **Post date:** [December 20, 2010, 11:45pm UTC](https://community.cartalk.com/t/no-heat-while-idle/58970/9 "2010-12-20T23:45:11Z")
If you really want to fix it yourself…buy a Haynes or Chilton manual and a test light. Your looking at about 30-40 dollars for those 2 items. A blower fan is about 50. ---
**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\ **Post date:** [December 21, 2010, 1:08am UTC](https://community.cartalk.com/t/no-heat-while-idle/58970/10 "2010-12-21T01:08:07Z")
Better yet, get the manual and a digital volt meter. It does lot more than a test light and doesn’t cost much (super-cheap @ $10; $20 will get you a decent one that will last for at least some time). If it is a blower problem (which seems likely) you can probably get by without the manual. Stick your head up under the glove box and find the blower - probably the big black round thing with a plug going into it. I don’t know the Astro - you might have to pull a trim panel to get to it. Stick the test light or meter leads into it, turn on the fan switch and see if you get 12V. If you do replace the blower motor, though you can also test by briefly hotwiring it to direct battery power. ---
**Author:** ![system](https://global.discourse-cdn.com/cartalk/original/3X/1/d/1d47c66a543aa6c5a7873bb2320858f978ff52ed.png) [@system](https://community.cartalk.com/u/system)\ **Post date:** [December 21, 2010, 3:18am UTC](https://community.cartalk.com/t/no-heat-while-idle/58970/11 "2010-12-21T03:18:16Z")
the blower motor is on the right side under the hood. ---
**Author:** ![\_Deleted\_User1111116](https://avatars.discourse-cdn.com/v4/letter/_/ac91a4/32.png) [@\_Deleted\_User1111116](https://community.cartalk.com/u/_Deleted_User1111116)\ **Post date:** [December 21, 2010, 3:29am UTC](https://community.cartalk.com/t/no-heat-while-idle/58970/12 "2010-12-21T03:29:32Z")
Passenger side is easier and yes under the hood