Question about 1994 Cadillac DeVille

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I have a 1994 Sedan Deville that cranks longer then it should on first start ever morning. It starts good the rest of the time. 4.9 liter V8

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Fuel pressure is probably bleeding off when it sets for a period. it probably is bleeding off into the return line if you see no leaks.turn the key on for 30 seconds then off before starting. if you dont like this then you can replace all of the fuel line o-rings in the system and pressure regulator/fuel rail assembly

Posted on Jul 11, 2010

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1 Answer

1994 Cadilac Sedan Deville 4.9 Liter


Only Ford products have a fuel pump switch.
You checked the fuel pump, so did you check fuel pressure before and after cranking ? It could have a faulty check valve in the pump and letting fuel pressure drain back into the tank when the engine is off.

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