Last post on Oct 13, 2013 at 2:35 PM
You are in the GMC Safari & Chevy Astro
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GMC Safari, Chevrolet Astro, GMC Safari Cargo, Heating / Cooling, Van
#290 of 371 1999 GMC Safari heat blows luke warm or cool
Feb 17, 2011 (2:14 pm)
Heat from vents blows luke warm or cool air. When van idles or I come to a stop, air blows cool. When I accelerate, air becomes luke warm but not hot. When there is stress on the engine going uphill, air sometimes stops blowing from vents, but when I remove my foot from the accelerator, the air comes back, but still luke warm or cool air.
Replaced radiator, new radiator cap, new radiator fluid, replaced thermostat, replaced heater core, replaced water pump, mechanic checked all vaccumn lines and performed smoke test on vaccumn lines to check for leaks, replaced T where vaccumn hoses connect and a few other minor parts, but still the same problem. Mechanic says he doesn't know what else to do.
I getting tired of taking the van back & forth to the mechanic with no results. Currently 228,000 miles. Can anyone solve my problem?
#291 of 371 Re: Bad Vacuum Lines 97 Chevy Astro [bdar]
Mar 07, 2011 (5:45 am)
2005 Astro, read many of your blogs, looked at the diagram, opened the hood and patched the hose in 5 minutes. Thanks, if I could buy you lunch, I would.
#292 of 371 Re: Information for Vacuum Line Repair Problem [bdar]
Mar 14, 2011 (2:22 pm)
I am having the same problem with my vents not switching, its stuck in the defroster position. I will try your written instructions but if you could please send me the diagram of the vacuum system.
Sincerely, Mike Evangelista
#293 of 371 Re: 2001 Astro Rear Heater Core Problems [isrena]
Mar 14, 2011 (3:31 pm)
i have a 98 astro and i took many of the inside panels out for shelving on mine the rear heater core is right behind the driver seat and i think the panel just pops out. i have not tried to take mine out but i did have a mechanic recomend just bypassing the rear heat since mine doesnt work anyway.
but ussually its not that hard to get them out sometimes its a pain if you have to take the hole dash apart
#294 of 371 Re: 98 - Astro climate control problems [chris705]
Mar 14, 2011 (3:38 pm)
yea mine did the same thing it was bad i had a small crack on my windsheild and it cracked all the way across cause i couldnt change it turned out the vacumm line was right under the hood on the passenger side up by the firewall
#295 of 371 Re: 2002 Astro Heater/AC Fan intermittently working [tstorm]
Mar 23, 2011 (9:02 pm)
could you please explain how to do this, where do you cut and what do you do after you cut,and how do you fill the hole that will be left after the job is done thank you for your time
#296 of 371 Re: 2000 chevy astro [groove104]
Mar 23, 2011 (9:37 pm)
If you still have that diagram for the vac hose could you please send it to me via email
#297 of 371 Re: Information for Vacuum Line Repair Problem [bdar]
Mar 23, 2011 (9:42 pm)
please send to r.secordgmail.com
#298 of 371 Re: A/C compressor clicking On/Off Fix [duecekd]
Apr 20, 2011 (7:33 pm)
I don't know if you still reading threads on edmonds, but I am having similar problems with my 96 astro awd with rear a/c heat installed. I am losing freon fast, [about 1 hour and presure gone after putting some in] I can't hear it leak out but it has to be a BIG leak somewhere. Just want to ask someone before I try tracing this down and dissasembling VAN all the way to rear of vehicle. Any shortcuts, advice, suggestions would be great.
#299 of 371 Re: Bad Vacuum Lines 97 Chevy Astro [bdar]
Apr 21, 2011 (10:04 am)
That is great you found the diagram! Could you please send it to me? billiam49ersyahoo.com