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Chevy Astro Heating/Cooling Problems
19 messages, Last post on Dec 11, 2012 at 4:49 PM
You are in the GMC Safari & Chevy Astro Forum.- Your Host is kcram
What is this discussion about? Chevrolet Astro, GMC Safari, Heating / Cooling, Van
#4 of 19 2000 Chevy Astro Van...No HEAT blowing in!!! by indhelp
Jan 26, 2008 (1:00 am)
I just purchased a used Chevy Astro two weeks ago. When I took it for a test drive, everything seemed to be working fine. A couple of day's ago, it didn't seem like I was getting enough heat. It would blow heat a little and then one I didn't hear the fan running. What I do hear though, is a humming sound.
Can someone please tell me if it's the thermostat, or hoses, or what it could be. Oh, and the a/c blower in the back works. Please help!! Thanks. 
#6 of 19 1999 GMC safari blower motor resistor by kortic
Apr 02, 2008 (1:29 pm)
We have a 99 safari. The blower motor resistor is bad (the blower doesn't turn off even with the key out of the ignition). The old resistor had a part number on it from the factory. The part number has changed. We got the new part from the dealer. But they have "upgraded" the part so it does not look like the same thing. The mechanics at the dealer insisted that it would work even though it is shaped differently. The old one had a computer like plastic card sticking out of it about an inch. The new one is only half the width but sticks out about 2 inches and is 1/2 inch thick. The Chevy mechanics insist that it will fit. My question is "do you have to do some sort of modification to the vehicle in order to make it fit?" I tried to put the part in, but it wasn't even close. What do the Chevy mechanics know that I don't know?- lloydroy (Jul 02, 2009 6:48 pm)
Replies to this message:
#7 of 19 99 chev safari blower motor resistor by cuttwice
Jul 23, 2008 (12:12 pm)
where is the resistor located? i seem to have a similiar, havent started to look at it yet.#9 of 19 heat, deforst, ac slector switch. by 66olds
Aug 01, 2008 (7:38 am)
2000 astro van. I need to find out how to put my slector switch back to together This is the one with the vacum lines oin the dash#10 of 19 Re: 1999 GMC safari blower motor resistor [kortic] by lloydroy
Jul 02, 2009 (6:48 pm)
Replying to: kortic (Apr 02, 2008 1:29 pm)
Have the exact same problem with my 1999 Astro. Fan runs on high only and runs on high even with key out. What was the outcome of your same problem and how much did the blower motor resistor cost you? Thanks for your help
#11 of 19 Climate Control Problem by lanceosh
Nov 19, 2009 (4:07 pm)
I had a problem getting the Heater A/C working properly in my 1998 Safari.Took it back to the dealer who put in a new control (The one with 3 holes attached) now I get all kinds of air to the various areas and I can get the A/C to work BUT absolutely nothing beyond a luke warm(cold) air when the heater is turned on. Living in Canada we need a properly running heater in our vans!
Now the dealer is suggesting the thermostat may be stuck and wants to replace it (of course at my cost)
Could this also be a vacuum problem?
#12 of 19 Still nothing but med speed by lloydroy
Nov 19, 2009 (9:17 pm)
Well, I replaced the AC control module on the dash and it does the same thing, only blows on medium. I have to keep the fuse link in the fuse box in the engine compartment removed for the AC. The AC and heater work with good heat and very cold, just only have a medium fan speed. Going to replace the blower itself shortly to see if that makes a difference. Will keep you posted.To POST a message, please
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