BodybyFisher Posted July 10, 2008 Report Share Posted July 10, 2008 Are you saying that while the KEY is OFF, the blower will start up by itself if the car gets hot sitting in the sun? Explain your symptoms again VERY clearly, like this KEY ON or OFF, CAR RUNNING or OFF AC OFF or ON, etc... I am confused as to what your symptoms are Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
lothos Posted July 10, 2008 Author Report Share Posted July 10, 2008 Sorry for not being clear. I start the car up and start driving. The A/C and heat is turned off, windows down. After a couple blocks the vents will start to blow air lightly, like at the lowest setting. If I turn on the A/C then it blows harder, and when I turn off the A/C it sometimes turns off completely and sometimes it goes back to blowing lightly. It doesn't blow for too long, my car ride home from work is 8 minutes and it stops by the time I get home. It doesn't happen in the mornings or at night, it seems to happen when I leave work, after the car has been sitting in the sun for hours. And it's not an every day thing, it only seems to happen on hot sunny days. I really like your new avatar BBF, I was searching on google images for "cadillac girl" and I guess there's some band by that name. I got lazy and just used the first Cadi symbol that I found WARNING: I'm a total car newbie, don't be surprised if I ask a stupid question! Just trying to learn. Cheers! 5% discount code at RockAuto.com - click here for your discount! Link to comment Share on other sites More sharing options...
BodybyFisher Posted July 10, 2008 Report Share Posted July 10, 2008 I like your avatar also, that is what prompted me to change mine. I think what you are experiencing is a failure mode of the controller on the blower motor. Send KHE a PM and direct him to this thread, as him if what you are experiencing is a failure symptom. I think it is. It seems heat is affecting your controller. I think KHE replaced some components on the motor controller if I recall.. Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
lothos Posted July 10, 2008 Author Report Share Posted July 10, 2008 I really like your avatar, I was looking for something just like that. Looks like I'll have to keep hunting one down. I did as you suggested and sent KHE a PM. Hopefully he'll have a couple minutes to help me out. I'm still hoping it's something easier like a relay. WARNING: I'm a total car newbie, don't be surprised if I ask a stupid question! Just trying to learn. Cheers! 5% discount code at RockAuto.com - click here for your discount! Link to comment Share on other sites More sharing options...
BodybyFisher Posted July 10, 2008 Report Share Posted July 10, 2008 I really like your avatar, I was looking for something just like that. Looks like I'll have to keep hunting one down. I did as you suggested and sent KHE a PM. Hopefully he'll have a couple minutes to help me out. I'm still hoping it's something easier like a relay. I changed it for you, Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
lothos Posted July 10, 2008 Author Report Share Posted July 10, 2008 I really like your avatar, I was looking for something just like that. Looks like I'll have to keep hunting one down. I did as you suggested and sent KHE a PM. Hopefully he'll have a couple minutes to help me out. I'm still hoping it's something easier like a relay. I changed it for you, haha that's great, I'll have to find one now. WARNING: I'm a total car newbie, don't be surprised if I ask a stupid question! Just trying to learn. Cheers! 5% discount code at RockAuto.com - click here for your discount! Link to comment Share on other sites More sharing options...
BodybyFisher Posted July 10, 2008 Report Share Posted July 10, 2008 Here how do you like this one.... Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
lothos Posted July 10, 2008 Author Report Share Posted July 10, 2008 Here how do you like this one.... Where are you finding those?? I'm not having any luck. I might just have to find someone to model naked for me on the hood of my STS EDIT: I found 'em I'll keep searching for a brunette WARNING: I'm a total car newbie, don't be surprised if I ask a stupid question! Just trying to learn. Cheers! 5% discount code at RockAuto.com - click here for your discount! Link to comment Share on other sites More sharing options...
BodybyFisher Posted July 11, 2008 Report Share Posted July 11, 2008 Its amazing how much better the car looks draped with women... Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
KHE Posted July 11, 2008 Report Share Posted July 11, 2008 The symptom is intermittent blower motor operation correct? Usually, the blower motor dies quickly but I had one exhibit similar symtoms for two weeks before puking completely. Mine did not run with the ignition/climate panel off though. It sounds to me like the blower motor is the problem. If you have the original blower motor - with the 1/2" thick inertial plate mounted on the face - I'm surprised it has lasted as long as it did. If you order a new blower, make sure you buy the heat shield - it used to be included with the service blower but is is no longer included - GM probably figures there are no first generation blowers left. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
BodybyFisher Posted July 11, 2008 Report Share Posted July 11, 2008 Thanks Kevin Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
lothos Posted July 11, 2008 Author Report Share Posted July 11, 2008 The symptom is intermittent blower motor operation correct? Usually, the blower motor dies quickly but I had one exhibit similar symtoms for two weeks before puking completely. Mine did not run with the ignition/climate panel off though. It sounds to me like the blower motor is the problem. If you have the original blower motor - with the 1/2" thick inertial plate mounted on the face - I'm surprised it has lasted as long as it did. If you order a new blower, make sure you buy the heat shield - it used to be included with the service blower but is is no longer included - GM probably figures there are no first generation blowers left. Thank you very much for the reply. Do you know if there's a relay that might be causing the issue? I believe the motor is original first gen, there's no metal shield. It's black. The motors are expensive and it doesn't look like a fun job, I'm going to try to see if it might be a relay, and if not then I think I'll let it die before I replace it. WARNING: I'm a total car newbie, don't be surprised if I ask a stupid question! Just trying to learn. Cheers! 5% discount code at RockAuto.com - click here for your discount! Link to comment Share on other sites More sharing options...
KHE Posted July 11, 2008 Report Share Posted July 11, 2008 The symptom is intermittent blower motor operation correct? Usually, the blower motor dies quickly but I had one exhibit similar symtoms for two weeks before puking completely. Mine did not run with the ignition/climate panel off though. It sounds to me like the blower motor is the problem. If you have the original blower motor - with the 1/2" thick inertial plate mounted on the face - I'm surprised it has lasted as long as it did. If you order a new blower, make sure you buy the heat shield - it used to be included with the service blower but is is no longer included - GM probably figures there are no first generation blowers left. Thank you very much for the reply. Do you know if there's a relay that might be causing the issue? I believe the motor is original first gen, there's no metal shield. It's black. The motors are expensive and it doesn't look like a fun job, I'm going to try to see if it might be a relay, and if not then I think I'll let it die before I replace it. I don't believe there's a relay that would cause the issue you're having. The tough part about troubleshooting intermttent problems is getting it to act up in order to troubleshoot it. 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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