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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.

What is this discussion about? Chevrolet Astro, GMC Safari, Heating / Cooling, Van

Messages Page 2 of 2

#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.

#13 of 19 Strange Blower Problem by liborsec

Jun 15, 2010 (8:00 am)

#14 of 19 Strange Blower Problem by liborsec

Jun 07, 2010 (1:31 pm)

99 Safari - For a while the heat/AC blower would only work when the engine was NOT under load. Going up hill or accelerating it did not blow and then coasting or parked it would blow fine.
 
Now it has stopped blowing at all regardless of the setting. The heat/AC controls work. I can switch between heat and AC. I verified this by watching the compressor turn on and off and also the rear AC works fine.
 
Is this the infamous vacuum issue and how can that affect the blower motor and not the other stuff?

#15 of 19 Re: Strange Blower Problem [liborsec] by liborsec

Jun 15, 2010 (8:00 am)

Replying to: liborsec (Jun 07, 2010 1:31 pm)
Nobody?
 
Anyway I replaced some of the vacuum lines and the blower does not stop when going uphill anymore. However the blower works on every speed but high. Is this the resister pack problem?

#16 of 19 2000 chevy astro rear heat works ac doesn't by exp23

Apr 10, 2011 (9:48 am)

My rear ac doesn't work on the van. I was told it was the rear ac switch that needs replaced but I do not know where it is located.

#17 of 19 A/C Does Not Cool by scottcb1

Apr 13, 2011 (3:16 pm)

Just bought a 96 Astro, Front Heater works fine, A/C does not cool, compressor goes on/off rapidly. Fans work great, Front & Rear, Filled with freon, pressure went into red on gage when compessor off, drops back to green when compressor on. Compressor only stays on for 2-5 seconds. Any ideas what could be wrong, before going to shop?

#18 of 19 MOTOR DOSE NOT GET HOT TO MAKE HEATER WORK by thevoice1

Dec 11, 2012 (8:40 am)

I have a 99 safari van i have replaced the water pump and thermostat and the motor dose not heat up to put heat out the heater in side unless u drive it about 10 miles or more can any one help with this

#19 of 19 Re: MOTOR DOSE NOT GET HOT TO MAKE HEATER WORK [thevoice1] by lanceosh

Dec 11, 2012 (4:49 pm)

Replying to: thevoice1 (Dec 11, 2012 8:40 am)
Mine is a 98 and I did everything possible to the dam thing for 3.5 years. Then one day I had a water leak from the top of the engine. Turns out a gasket was shot and once it was replaced I'm roasting... Cost was a thousand bucks. But I had already spent 700 trying to fix the dam thing. Now my brake lines need replacing so another 700 bucks.!!!

Messages Page 2 of 2

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