chazzy Posted July 10, 2013 Report Share Posted July 10, 2013 I have a 1999 Cadillac Deville. When I turn on air condition the vents on inside of car will not open up until maybe 5-10 minutes later. What could be the cause of that and still it seems like it not blowing full speed. Help please Link to comment Share on other sites More sharing options...
KHE Posted July 10, 2013 Report Share Posted July 10, 2013 Do you mean the air does not flow from the vents for 5-10 mins.? Does it flow from the defroster vent? If so, the issue may be a leaking vacuum line under the battery or in that vicinity. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
chazzy Posted July 10, 2013 Author Report Share Posted July 10, 2013 Yes . It does not blow from the vents for about 5-10 minutes. The blower is just blowing but nothing comes out for that time and its not blowing out of defroster vent. After I drive car around for awhile then it seems like the vents will open up but by that time I'm burning up with the 90 degree plus heat if you know what I mean.Please help burning up in Ga. I love my car Link to comment Share on other sites More sharing options...
KHE Posted July 10, 2013 Report Share Posted July 10, 2013 Are there any codes stored in the onboard diagnostics? The ones that would be relevant would be the ACM codes. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
chazzy Posted July 11, 2013 Author Report Share Posted July 11, 2013 Thanks for the help. I was told this could be a vacuum control unit problem. It is not letting the doors open all the way. We have been troubleshooting the problem. Do this sound right. The Cadillac dealer says the Vacuum Control Unit for this car has been discontinued. Can anyone help me out. Your services would be greatly appreciated. Link to comment Share on other sites More sharing options...
KHE Posted July 11, 2013 Report Share Posted July 11, 2013 I would suspect a vacuum leak is causing the issue vs. the control unit. Check all the vacuum connections to make sure they are fully seated and not leaking. If it is the control unit, a junkyard or ebay might be the only solution. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.