DJJM3 Posted February 1, 2011 Report Share Posted February 1, 2011 It has 113,000 miles...I have V6. When I even put even a 1/2 tank of gas...it takes 3 tries before it will start. What is the problem? Link to comment Share on other sites More sharing options...
cdgrinci Posted February 1, 2011 Report Share Posted February 1, 2011 Here's a guess (the problem a little generic to really know) but maybe you have a leaky injector(s), and when you shut down to refuel, excess raw fuel enters the cylinders and you engine 'floods'; repeated cranking eventually clears the excess fuel and the car then starts. You might try holding the accelertor 'to the floor' when trying a restart, after fueling, and see if that doesn't let the car start more easily (of course quickly take you foot off if it fires). Chuck '19 CT6, '04 Bravada........but still lusting for that '69 Z-28 Link to comment Share on other sites More sharing options...
BodybyFisher Posted February 1, 2011 Report Share Posted February 1, 2011 You need to check for codes, is your check engine light on? You have an 06, go to a shop or parts store that can extract your DTC codes and post them here. I do not recall hearing of this problem before here This could be your EVAP valve, see this thread for some additional info, while this is not the same car, its the same problem http://action.publicbroadcasting.net/cartalk/posts/list/2130864.page 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...
DJJM3 Posted February 3, 2011 Author Report Share Posted February 3, 2011 You need to check for codes, is your check engine light on? You have an 06, go to a shop or parts store that can extract your DTC codes and post them here. I do not recall hearing of this problem before here This could be your EVAP valve, see this thread for some additional info, while this is not the same car, its the same problem http://action.publicbroadcasting.net/cartalk/posts/list/2130864.page No codes stored......no check engine light. Link to comment Share on other sites More sharing options...
DJJM3 Posted February 3, 2011 Author Report Share Posted February 3, 2011 Here's a guess (the problem a little generic to really know) but maybe you have a leaky injector(s), and when you shut down to refuel, excess raw fuel enters the cylinders and you engine 'floods'; repeated cranking eventually clears the excess fuel and the car then starts. You might try holding the accelertor 'to the floor' when trying a restart, after fueling, and see if that doesn't let the car start more easily (of course quickly take you foot off if it fires). Only happens when I refuel...any other time it starts fine...seems burn alot more gas then normal.... Link to comment Share on other sites More sharing options...
DJJM3 Posted February 8, 2011 Author Report Share Posted February 8, 2011 You need to check for codes, is your check engine light on? You have an 06, go to a shop or parts store that can extract your DTC codes and post them here. I do not recall hearing of this problem before here This could be your EVAP valve, see this thread for some additional info, while this is not the same car, its the same problem http://action.publicbroadcasting.net/cartalk/posts/list/2130864.page Well the Check Engine light finally showed up...Went to auto Zone .....Got the code .P0496 Link to comment Share on other sites More sharing options...
BodybyFisher Posted February 8, 2011 Report Share Posted February 8, 2011 Interesting P0496 - Evaporative Emission (EVAP) System Flow During Non-Purge See this link http://caddyinfo.ipbhost.com/index.php?showtopic=34702&st=0&p=179575&hl=p0496&fromsearch=1entry179575 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...
DJJM3 Posted February 18, 2011 Author Report Share Posted February 18, 2011 Interesting P0496 - Evaporative Emission (EVAP) System Flow During Non-Purge See this link http://caddyinfo.ipbhost.com/index.php?showtopic=34702&st=0&p=179575&hl=p0496&fromsearch=1entry179575 I replaced the valve,.... it fixed the problem.....Thanks Link to comment Share on other sites More sharing options...
BodybyFisher Posted February 18, 2011 Report Share Posted February 18, 2011 Thats great, glad to hear it! 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...
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