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Truck Turns Over, But Takes Two Tries To Start

Paulski

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Paulski New Member

Paulski

Posted
Posted

I have a 2002 GMC Sierra truck with the V6 and every time I go to start it, the engine will turn over but it wont start on the first try. I will try to start it a second time after the first attempt and it will fire right up. I hooked up a code reader to the OBD port and it doesn't register any error codes. Anyone have any ideas?

 

Thanks

jdewolfe Enthusiast

jdewolfe

Posted
Posted

Clean the throttle body and MAF sensor. I'll bet it fixes it. Fuel filter change wouldn't hurt either if you haven't already done that.

hpracing10 Enthusiast

hpracing10

Posted
Posted

Fuel pressure regulator. Very common on your year of truck, if you know where it is on the drivers side fuel rail, you will see a little black vacuum line coming out of the top of it. Pull that line off and if your regulator is shot there will be gasoline in the line/coming out of the top of the regulator or it will at least be wet. It should be dry.

Prokopchuk_9 Senior Enthusiast

Prokopchuk_9

Posted
Posted

next time you go to cold start it, get somebody to boot the gas tank as you crank on it. i had this same very problem and it turned out to be a bad pump on my 02'. it just kept gettin worse and worse till she finally gave up. anyways if you boot the tank and she fires right up without a hitch you know its ur pump. the only other thing i could see is a severly plugged filter. but i doubt it could be thaaat bad.

jwhjr Enthusiast

jwhjr

Posted
Posted
Fuel pressure regulator. Very common on your year of truck, if you know where it is on the drivers side fuel rail, you will see a little black vacuum line coming out of the top of it. Pull that line off and if your regulator is shot there will be gasoline in the line/coming out of the top of the regulator or it will at least be wet. It should be dry.

This would be my guess as well.

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