Question about 1999 Chevrolet Silverado 1500

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When i go to start it for the first time it starts right up but after that it turns over for a long time before it starts someone told me it was charcoal filter on the return line do you think that is it i had the fuel pump tested pressure is good so do you know what it is

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When you had the fuel pressure tested did it hold pressure with the key off or did the pressure drop off?

If it dropped off I would bet you have either a leaking fuel pressure regulator or a bad fuel pump. Fuel pressure needs to hold steady especially on a hot engine in order to prevent the fuel in the fuel rail from boil over.

I think the 99 has the external injectors. If it does the fuel pressure regulator is located on the drivers side of the engine about in the middle of the fuel rail. There will be a small vacuum hose attached to it. remove the vacuum hose and see if gas comes out. If it does the regulator is bad. If it doesn't I would check the pump next.

There is no charcoal filter on the return line or the pressure line. The charcoal canister is part of the evap emissions system and will rarely if ever effect the starting of the vehicle.

I’m happy to assist further over the phone at

Posted on Mar 19, 2011


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