Question about 2002 Cadillac Sts

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Front airworks sometime but when you kill eng. itwill not come back on.the rear air works great thanks ray

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Sounds like the blender door is stuck. The rear, if it works ok, then the system is sufficiently charged.

Posted on Aug 03, 2010

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Posted on Jan 02, 2017

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2 Answers

No air blowing on any setting out any vent. rear works fine.


You need to replace the blower motor, and maybe the ballast resistor also.

Jul 12, 2016 | 2001 Chevrolet Suburban

1 Answer

Blend door actuator or can I bypass rear heat?


Bypass the rear heater core take both hoses off the core and go to hardware store ask for apex tubing an conect hoses to it n put 2 clamps on each side u will have to guess the size or cut a piece of it n take it with u to get the size tubing u need that will kill all heet to back not the front

Oct 12, 2014 | 1998 Chrysler Town & Country

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I have a 2004 Mercury Mountaineer. The heat and air works great in the back half of the car but not in the front. Any ideas?


Get a Chiltons/Haynes manual and see what controls the airflow to front/rear. Could be as simple as a flap control wire fallen off.

Nov 05, 2013 | Cars & Trucks

1 Answer

Dodge Ram Van air conditoning unit


HI you have a expansion valve at the rear evaperator that has gone bad and has to be replaced and a/c will need to be recharge.Hope this helps,if it does please rate my post.Thank You for using fixya,iluv2fish...Ray..

Jun 29, 2010 | 2000 Dodge Caravan

1 Answer

Does 1998 tahoe with rear a/c have two expansion valves? I installed a new compressor, rear expansion valve, orifice tube, evaporator and vaccumed the system, and added about 3 cans 134a. rear air 39...


try adding freon with a dye in it, sounds you have a leak,pay special attention to the a/c lines that run under the truck. notorious for having pin hole leaks,check these and get back to me we'll go from there. hope this helps get back to me Thanks Ray

Mar 29, 2010 | 1998 Chevrolet Tahoe

1 Answer

No heat thermostat isopening and closing andfanis working sometimes you get a little barley warm air then it goes back to cold air also ck. eng. light is on


Ck Eng light probably not related.
The heater core is clogged. A bottle of cooling system "quick flush" may be all you need ($6 AutoZone).
There is also a complete flush system, but requires that you splice into the heater hose (I installed it on my Taurus - works great!).

By the way, there is a heater core bypass hose. It is connected to the two heater core hoses near the firewall. You may want to remove the two "Tee" fittings and use a 5/8" hose splicer so that the flush passes through the heater core at full force. Put the Tee's back in place after the flush.

If you remove the tee fittings and don't flush, the heater will work, but the core may eventually start leaking.

Oct 02, 2009 | 2001 Ford Taurus

1 Answer

The eng. Run Great ,no problems until the Eng. warms a bit sometimes this only takes a fesw min.then it runs rough for a few min. then it dies and wont start back. till the next day. the problem began...


ign. module needs replacement.Very common problem.Be sure that you use the dielectric grease on thenew part,also do not wipe off the old grease completly just smooth it out.

Jul 26, 2009 | 1993 Chevrolet S-10 Blazer

1 Answer

My air conditioner in my 2003 KIA Sedona sometimes works


ITS JUST A COMMON PROBLEM A CONTACTED MY SUPPLIER AND HE FIVED AS ITS ALL A FAULT

Jun 01, 2009 | 2003 Kia Sedona

1 Answer

Heater not working


the back is usually for air conditioning only i have a 94 and thats the way its made with air control in back heat up front.you might look more closely and see if this isnt the case

Jan 14, 2009 | 1999 Oldsmobile Alero

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