2004 DHS starts, wont run

shamrock2960
25

Asked by shamrock2960 Oct 19, 2013 at 11:02 PM about the 2004 Cadillac DeVille DHS

Question type: Maintenance & Repair

car starts right away, immediately stalls. When it did start, it raced at about 1800 rpm. Then statrted and ran normal. Check engine says running lean.

1 Answer

Fordtudor37
5,095

Check operation of the "Idle Speed Controller" or "Air Idle Controller". Either name is basically the same thing, what it does is control the fuel/air mixture from cold start until the engine gets warm. Replace fuel filter and complete tune up on engine. Then I would replace fuel filter and perform (or have done) a complete tune up on the engine.

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