Captain Rob Posted August 11, 2010 Report Share Posted August 11, 2010 After searching the forums I found a thread exactly related to my problem link from 2009 I've responded to that thread with no luck of a response, I'm posting it here because we are going through another week of 90+ temps here in MI. Before you respond, remember, this a dual climate control AC, which only applies to the 1998 and upward models. Question, can someone explain in detail or post a pic of the procedures from the manual on how to change the driver side actuator? From what i understand its under the dash and not above the kick panel? How do I remove the dash panel, and will it be easily noticeable? Any help will be much appreciated. Captain Rob (Rather be on my boat but must fix the Caddy) Link to comment Share on other sites More sharing options...
JimD Posted August 11, 2010 Report Share Posted August 11, 2010 When a HVAC door and the door actuator motor are out of sync., a Diagnostic Trouble Code will eventually be set. Knowing the DTC will eliminate guess work. Here's here's how to display the codes on your dash: http://www.caddyinfo.com/readingcodes.html You will be most interested in "B" for Body codes. Jim Drive your car. Use your cell phone. CHOOSE ONE ! Link to comment Share on other sites More sharing options...
Captain Rob Posted August 11, 2010 Author Report Share Posted August 11, 2010 These are the three codes: DTC B1310 Ambient Air Temperature Sensor Failure DTC C1712 LF Damper Actuator Open CKT DTC C1717 RF Damper Actuator Open CKT Link to comment Share on other sites More sharing options...
JimD Posted August 11, 2010 Report Share Posted August 11, 2010 These are the three codes: DTC B1310 Ambient Air Temperature Sensor Failure This "could be" a factor in your HVAC problem. If your dash OUTSIDE TEMP display is not reasonably close to actual ambient air temperature, I would suggest you replace the sensor. Located on the hood latch support bracket. DTC C1712 LF Damper Actuator Open CKT DTC C1717 RF Damper Actuator Open CKT Nothing to do with HVAC. But you might have non-electronic aftermarket struts installed. Should also result in a SERVICE SUSPENSION SYS message on the dash. Jim Drive your car. Use your cell phone. CHOOSE ONE ! Link to comment Share on other sites More sharing options...
Ranger Posted August 12, 2010 Report Share Posted August 12, 2010 Yeah, if the ambient temperature sensor does not know what the temperature is, it doesn't know whether to heat or cool, much less how much. Fix that first. Link to comment Share on other sites More sharing options...
Captain Rob Posted August 12, 2010 Author Report Share Posted August 12, 2010 The outside air temperature stopped working after I just had the head gaskets replaced and time serted. So the problem was happening before that. But I will replace anyway. Can you give me an idea of cost? I do have the driver side actuator already, so if its relatively simple, I can replace. Just need input. Link to comment Share on other sites More sharing options...
hjb981 Posted August 12, 2010 Report Share Posted August 12, 2010 I replaced my heater core last spring, and took some pictures while doing it. You can find the description of it if you go to post #9 in this thread: http://caddyinfo.ipbhost.com/index.php?showtopic=28646&st=0&p=165660entry165660 or go directly to the pictures (only) here: http://picasaweb.google.se/112056579231243335600/97DeVilleHeaterCoreReplacement?authkey=Gv1sRgCN3bjeDPsrS8rgE&feat=directlink I guess much of it may not apply on your car, but in some of the figures the heater box and the control rods are visible, so that you can get an idea of what they look like. I have put one more picture up for you, which shows the little doors that are actuated by the control rods (the picture is from inside the heater box, after it was opened): http://picasaweb.google.se/112056579231243335600/97DeVilleAirDoorsInsideOfHeaterCore?authkey=Gv1sRgCMvxpN_p9aubmwE&feat=directlink All the pictures are from my '97 DeVille, which does have dual climate control. Hope it helps! Jonas Link to comment Share on other sites More sharing options...
JimD Posted August 12, 2010 Report Share Posted August 12, 2010 I would not replace the door actuator motor before the ambient temp. sensor is working properly. If the door remains in the wrong position after you replace the ambient temp. sensor, there is a little trick that works for me. Sometimes the problem is simply a matter of the motor being out of sync. with the temperature controller. Very slowly, one degree at a time, cycle the commanded temperature through the entire range several times. And yes, the actuator motor can fail. Jim Drive your car. Use your cell phone. CHOOSE ONE ! Link to comment Share on other sites More sharing options...
hjb981 Posted August 12, 2010 Report Share Posted August 12, 2010 I would not replace the door actuator motor before the ambient temp. sensor is working properly. If the door remains in the wrong position after you replace the ambient temp. sensor, there is a little trick that works for me. Sometimes the problem is simply a matter of the motor being out of sync. with the temperature controller. Very slowly, one degree at a time, cycle the commanded temperature through the entire range several times. And yes, the actuator motor can fail. Aren't those actuated by vacuum lines? I think they are in my car, and in that case there could be a vacuum leak causing the problem. Link to comment Share on other sites More sharing options...
JimD Posted August 12, 2010 Report Share Posted August 12, 2010 Aren't those actuated by vacuum lines? I think they are in my car, and in that case there could be a vacuum leak causing the problem. HVAC doors on 1998+ Sevilles (and 2000+ Devilles) are controlled by electric motors. And that is only the tip of the iceberg of differences. Jim Drive your car. Use your cell phone. CHOOSE ONE ! Link to comment Share on other sites More sharing options...
hjb981 Posted August 12, 2010 Report Share Posted August 12, 2010 Aren't those actuated by vacuum lines? I think they are in my car, and in that case there could be a vacuum leak causing the problem. HVAC doors on 1998+ Sevilles (and 2000+ Devilles) are controlled by electric motors. And that is only the tip of the iceberg of differences. Aha, you learn something new every day . Guess my pictures are not all that relevant then, oh well... Good luck anyway, Captain Rob Link to comment Share on other sites More sharing options...
KHE Posted August 13, 2010 Report Share Posted August 13, 2010 The outside air temperature stopped working after I just had the head gaskets replaced and time serted. So the problem was happening before that. But I will replace anyway. Can you give me an idea of cost? I do have the driver side actuator already, so if its relatively simple, I can replace. Just need input. Maybe the sensor is unplugged? It is near the center of the radiator support. If the sensor is bad, it is about $25.00 at the dealer. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
Captain Rob Posted August 31, 2010 Author Report Share Posted August 31, 2010 Replaced the temperature sensor, outside temperature is correct. Ran the driver side air temp from high to low slowly, and still blows hot air. Any suggestions? Driver side actuator? Link to comment Share on other sites More sharing options...
Ranger Posted September 1, 2010 Report Share Posted September 1, 2010 The actuator or linkage would be my guess. Link to comment Share on other sites More sharing options...
KHE Posted September 1, 2010 Report Share Posted September 1, 2010 Is the air from the passenger side ducts cool? If so, I would think the system is low on refrigerant. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
Captain Rob Posted September 2, 2010 Author Report Share Posted September 2, 2010 Yes, the passenger side is nice and cool, the refrigerant was replaced when I did the alternator/generator a few months back. I have a replacement driver side actuator, is it under the dash or above the kick panel on a 99 STS w/dual climate control? Just looking for the procedure on replacing. Thanks in advanced. Link to comment Share on other sites More sharing options...
Captain Rob Posted September 2, 2010 Author Report Share Posted September 2, 2010 I am now a supporter of the boards You have successfully signed up for a subscription to Donate US$20 per Year using PayPal. Your first subscription payment, for $20.00 USD, has already been sent to Bruce Nunnally. -Thanks guys, great site. Link to comment Share on other sites More sharing options...
KHE Posted September 3, 2010 Report Share Posted September 3, 2010 I'm not sure of the placement on the '98+ Sevilles. The earlier styles had one under the passenger kick panel and the other one was accessed by removing the glove box. With the A/C on, feel the evaporator inlet and outlet pipes - they should be the same temperature. If the outlet is warmer than the inlet, the system is low on refrigerant. If they are both approximately the same temperature, then the issue is an actuator. It may be possible the actuator is not calibrated correctly or it has died. Someone with a '98+ service manual should be able to tell you where the driver's side actuator is and the procedure for calibrating the replacement. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
Captain Rob Posted September 8, 2010 Author Report Share Posted September 8, 2010 I have the two out of the 3 service manuals, I am missing the HVAC manual. Link to comment Share on other sites More sharing options...
JimD Posted September 8, 2010 Report Share Posted September 8, 2010 Even if you had Volume 1 of 3, you still would not know for sure where the door and actuator are located. There is no illustration for the driver air mix actuator in my '98 Service Manual. Jim Drive your car. Use your cell phone. CHOOSE ONE ! Link to comment Share on other sites More sharing options...
Ranger Posted September 12, 2010 Report Share Posted September 12, 2010 Maybe this will help. http://www.gmpartsgiant.com/Page_Product/PartDetail.aspx?modelYear=1999&model=Seville&make=Cadillac&catalogCode=66O&modelCode=6KY69&seriesCode=6KY&bodyStyleCode=69&engineCode=L37&transCode=MH1&majorIndexID=09&minorIndexID=6K0903101&isBigPicture=True Link to comment Share on other sites More sharing options...
Captain Rob Posted September 29, 2010 Author Report Share Posted September 29, 2010 Ranger, that did help. I found the actuator, I had to removed the kick panel on the driver side and it seemed to be working properly. I could hear it working as I changed temps. Anything else I should trouble shoot for? Link to comment Share on other sites More sharing options...
Ranger Posted September 30, 2010 Report Share Posted September 30, 2010 Boy, if that's not it then I'm out of ideas unless that's the wrong actuator. Link to comment Share on other sites More sharing options...
KHE Posted September 30, 2010 Report Share Posted September 30, 2010 Ranger, that did help. I found the actuator, I had to removed the kick panel on the driver side and it seemed to be working properly. I could hear it working as I changed temps. Anything else I should trouble shoot for? Did you check the items that I outlined in my earlier post? If so, what were the results? Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
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