Question about 2004 GMC Safari

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04 safari trying to find the door that turns to switch cool to hot its stuck very little heat comes out

No heat

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The trap is under the dash in the lower right hand corner of the dsh. It may not be the trap, it may be the switch, a brolen cable or a vacuum leak.

Posted on Jan 23, 2013

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Posted on Jan 02, 2017

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SOURCE: rear door latch 1993 GMC Safari stuck

Mine had the dual doors on the back. The passenger side would open but the drivers side refused. I went to a wrecking yard and took a close look at how these doors are constructed. I realized that if I was to use a box cutter or very sharp knife I could cut the carpet liner on the inside of the door on three sides only, thereby leaving the carpet as a flap to cover the access hole. In order to get the correct location to make the cut it would be best if you can go to a Pick n Pull or somethimg similar to take a look at some of these Safaris or Astros to figure out the l;ocation of the access hole before making the cut. Once the carpert is cut you can reach inside the door and access the actuator rods that control the catches. In My case the rods had become straightened out over time and were no longer pulling the latches to release them. I only had to bend the rods by hand slightly and it now works like it did on day one. If it ever gets stuck again I have a very simple access panel so that I can do the same thing again. If you are careful in making the cut you can close it up and it is hardly noticeable.

Posted on Aug 09, 2010

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2 Answers

How come I get hot air from my cars vents when I turn the air conditioner on.


Reeeeeeeeeeally common problem on that vehicle is that the heater blend door gets stuck in position. It's a little hard to get to, and you will need to remove the glove compartment to reach it, but often the blend door gets stuck in the "heat" position and needs to be lubricated and coaxed to move.
Also, vacuum leaks will cause the heater blend door to fail to move. Most common culprit: The automatic brake release vacuum line has broken or fallen off. Do you hear a hissing sound from under the dash? FIND IT AND FIX IT :)

Jun 23, 2014 | 2003 Mercury Grand Marquis

1 Answer

04 ford escape new thermostate still no hot air blows cool hold it about 2500 rpm it get warm let off gas goes back cool


Check the heater core, if it's OK, check the thermostat again, but it could be the heat switch too.

Mar 23, 2013 | Cars & Trucks

1 Answer

My 99 GMC Safari has heater stuck at 75% defrost and 25% vent...no leg heat...something is stuck...how do I get at it to loosen it up or fix?


blend door actuator is stuck or burnt out or actuator door is jamed
locate and place remove motor actuator check if blend door move freely
if not repair or disloged foring object (pencil pen---comb---etc)
if ok before installing actuator plug back in harness and move selector switch
if it fails check for power if power replace actuator if no power check switch

Apr 02, 2011 | 1997 GMC Safari

1 Answer

Mour 2001 suburban heat gets stuck on hot air when we try to switch it back to cool


There is a servo motor that runs the temp and a seperate one runs the mode doors. Start the vehicle,change the temp setting and listen for a popping sound coming from under dash. This
noise is the stripped gearing in the bad servo.REPLACE .

Jan 28, 2011 | 2001 Chevrolet Suburban

4 Answers

Only Blows Cold Air


heat sensor for radiator fan switch, thermistat,water pump? Does hot air blow when moving? does car over heat when sitting idling for over 10 minutes. If so check fan first, then water pump. last cause thermisat

Mar 07, 2010 | 1998 GMC Safari

1 Answer

2000 buick lesabre Heat control will not switch


their is a little motor on your duct work that moves a door open and closed to switch from heat to cool,it is called actuator motor.watch it and have someone to switch it from cool to heat to Se if the motor is turning.

Oct 10, 2009 | 2000 Buick LeSabre

1 Answer

HOT & COLD ELECTRIC VENTS NOT MOVING.


Blend door actuator. When it fails for some reason it turns to the hot side and gets stuck. Dash must come out. I usually do it in 3 hours, because I've done it numerous times.

May 17, 2009 | 1997 Ford Crown Victoria

1 Answer

Rear heat or rear air conditoner not workin in my 1997 gmc safari


two different problems !

Rear heater problem: find under the hood where is hose for cooling liquid goes to front heating core!
you will see there also vacuum tubesgoing in to little valve ! disconnect the vaccum tubes ( engine off)
and spray in wd 40 in to the vlave ... valve is stuck and wont open flow to rear heater !

you do not have to replace tha thing . its very well made and because you dont turn this often in summer
it gets stuck. i had same problem. also make sure vacuum is working - Engine running turn rear heater on - vacuum sucks to open valve. and before that make sure fuse is ok .

for rear AC mine does not work either and it is leak on pipes that go from front to rear .. 10 feet of pipes and tubing $$ expensive repair ... forget it ... open the window...

jebadiah

Jan 22, 2009 | 1997 GMC Safari

1 Answer

97 GMC Safari Van - Heater takes forever to blow hot air. Could this be a thermostat problem?


Hello,

Humm I make the assumption that you don't have overheating problems. Yes, sounds like a thermostat is stuck open. If you have a gage on the dash you may also notice that the engine temp takes a long time also. Sometimes when you sit a light for a while the temp edges up and starts to get warm....then when moving down the road a higher speeds the temp cools off again. this does this because the thermostat may be stuck open and it cools the heated water in the engine when moving. Also, check the coolant level in the radiator. (only do this when cold!!!!!!!!) ok????? NOT HOT! low coolant can affect how the heater performs. (low volume)

Hope this helped. :)
Chris

Jan 03, 2009 | 1997 GMC Safari

2 Answers

Heater temperature does not stay hot


1st thing to check is the coolant level. I've seen cars w/ no heat, or very little quite a few times caused by low level in cooling system--not low enough to overheat the engine, but enough that circulation of coolant to heater core is affected (no or little hot coolant circulation to heater core=no or little heat),
Is the engine temp gauge in the normal range? If it's in the low range, engine not reaching operating temp. it could be caused by a thermostat stuck in the open position (or no thermostat, sometimes people remove them when their car overheats, and this should not be done).
Here's how the system works: the heater 'box' contains a heater core (a mini radiator) w/ a fan and hoses connecting the heater core to the engine cooling system. Hot engine coolant is circulated thru the heater core. When u activate the heat switch on the dash, a flap door opens to expose the heater box to the passenger compartment. The fan switch on the dash activates the fan, which blows air thru the core, which heats the air.
So, if it's not the coolant level at the radiator, the fan is obviously working, the engine is reaching operating temperature, I would say it must be the flap door that opens, isn't opening fully, or isn't staying open. It could be the dash switch is defective (not supplying current to open flap door) or less likely the flap door is binding somehow. Hope it's as simple as correcting coolant level, if not, the dash switch control should be checked

Oct 22, 2008 | 2004 Dodge Caravan

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