Question about 2008 Cadillac Escalade Ext

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Engine starts and cuts off immediately - 2008 Cadillac Escalade Ext

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Key needs re programing.

Posted on May 28, 2009

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" There are many things that can cause the engine to die as soon as it's started. The first thing to do is check all the vacuum lines and be sure they are connected properly and that they have no cracks or breaks in them. Do the same for the electrical connectors. Make sure they are clean and tight. The next thing to do is check the computer for Diagnostic Trouble Codes there is very likely a code stored that will point to the problem.
Check the engine idle speed and ignition timing as well. The under hood decal will tell you what the timing should be and how to check it.
Check the EGR valve to be sure it is closing all the way. Disconnecting and plugging the vacuum line to the EGR will tell you if there is a problem with the EGR control circuit.
Another possibility is the ignition switch. If the engine will stay running while the key is in the START position, you, more likely than not, have a bad ignition switch."

Cite: http://autorepair.about.com/library/faqs/bl459h.htm

Posted on May 28, 2009

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