Last post on Oct 13, 2013 at 2:35 PM
You are in the GMC Safari & Chevy Astro
What is this discussion about?
GMC Safari, Chevrolet Astro, GMC Safari Cargo, Heating / Cooling, Van
#362 of 371 Re: MOTOR DOSE NOT GET HOT TO MAKE HEATER WORK [thevoice1]
Dec 11, 2012 (9:35 am)
I too have this same problem !! 95 astro van I have replaced the thermostat! The dealer that I WENT TO ONLY SELLS THE FACTORY RECOMMENDED 90 DEG. so I bough a 170 deg. at auto zone thinking of taking a trip across the desert and wanting a lower operating temperature doing so and the motor still dose not heat up to put heat out the heater in side unless u drive it about 10 miles or more ??/ so if you resolve this before I do ??/ sent some feed back as to the problem??/ and I well do the same !! Steve
#363 of 371 99 safari van no heat
Dec 10, 2012 (8:30 pm)
#364 of 371 99 safari van no heat
Dec 10, 2012 (8:30 pm)
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
#365 of 371 2000 GMC Safari front heater problem
Feb 18, 2013 (8:47 am)
There is little to no heat on the front heater. Rear heater works fine. What do I got to do to fix this?
#366 of 371 Re: Information for Vacuum Line Repair Problem [bdar]
Jun 07, 2013 (8:50 am)
Thanks for the detailed description of the vacuum line repair to my chevy astro!! the repair took me about 20 minutes including the autozone stop. Thanks again!!
#367 of 371 Re: Safari A/C problems [bdar]
Sep 03, 2013 (1:47 pm)
Hello. Is it possible for me to get an email of the Vacuum Diagram & instructions also?? Please & Thank you!!
#368 of 371 Re: Safari A/C problems [matt777]
Oct 10, 2013 (10:39 pm)
Hello All. My 98 Chevy Astro was not heating up front for some reason(rear was heating). So I replaced ALL the vac lines
(which did work a few years ago) and still no heat. I even replaced the 6 port coolant valve plus the the rear vac control 2 port coolant valve (for the rear heat) and still no heat. Then I remember the events from last winter / spring leading up to it not working. (1.) we had to turn the temp control knob almost all the way into the blue (cold for the a/c side) because it was so hot in the van. (2.) We could hear a slap noise under the passenger side floor board if we turn the temp control knob to far in the blue. (3.) Then it took awhile before the heat would come back almost 5 min. It was either hot or cold no warm. So I removed the cup holder/glove box and the engine cover to gain access to the BLEND DOOR ACTUATOR mounted right under the passenger side dash between the black plastic heater core cover and the engine cover. It was lockup in the closed position(for a/c mode) The actuator is held in with (2) 5.5mm screws with a 3 wire plug. It was a $45 part at my autozone. Now the heat is working again on any temp setting. Hope this helps someone else.
#369 of 371 2004 Astro van blower problem
Oct 13, 2013 (7:43 am)
Okay, I have read numerous posts here about this heater/AC blower problem and I have changed the blower motor and fan, replaced blower resistor (twice) and the pigtail to the resistor, unit worked for most of summer, then one speed, (again!) now it does not work at all again, and it seems like the same 2 connectors on the plug going to the blower resistor are always cooked. Any suggestions? At wits end and it will be cold soon in Illinois. Thanks.
#370 of 371 Heater fan resistor
Oct 13, 2013 (9:56 am)
It could be (possibly not probable) Your fan could be laboring with erratic speeds that also would mean that either shorting out in the motor ( Brushes,barrings ect,)or That the fan isn't grounded well enough??/ A simple ground strap to firewall will take care of that??/ Simply that some of those fan shrouds are fiberglass and it doesn't allow the screws to do the grounding and even with the metal ones they put so much foam sealant in between the fitment area between the fan And to the firewall??/ Sometimes the that amount of resistance will send the current looking for alternate routes??/ Isolation between wires (connections at terminals) will also affect the current direction??/ Or if you only replaced the resister once since you started hunting the problem it could have been a bad resister right off the shelf ??/ Its been known to happen??/ Was it a generic ??/
#371 of 371 Re: Heater fan resistor [sortof]
Oct 13, 2013 (2:35 pm)
Yes, believe it was generic, purchased from Pep Boys, will try the grounding idea, being as that seems the only thing I have not tried, also seem to remember someone on another post mentioning something about soldering the connections from the pigtail rather than crimping. About ready to try and bypass with a relay and have only high speed on fan.