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Need help , Can't figure it out...


JCL82
08-24-2009, 04:28 PM
My truck won't start sometimes, When I try to start it , the engine will turn but it will not start. It does it twice sometimes, but always starts on the 2nd or 3rd key turn. The rpms do go up to 1,000. but back down to 500rpm. However sometimes when i get in the truck it will just start like no problems.
THe problem happens hot or cold, raining or not. It started like 2 months ago.
. My MPG hasn't changed. Also the truck drives fine , no codes, no slow downs. no messages. Sometimes though when it does happen the problem it will take a second for the the engine to get going, like it's stugggling for something.So this is what i have done so far or have someone check or cleaned.

Sparkplugs,wires done.
Coils check and clean
Fuel pump checked.
PCV replaced.
Fuel injectors check and clean.
Air filter Checked.

I will being changing the fuel filter soon, it's has been raining everytime i go try to do it.


I want to think my fuel pump might be going out , and it could be faulty , but that an expensive part ,just thinking it might be, but if I drop the gas tank i will most likely want to replace it.


2002 silverado v8 4.8 liter 16x,xxx miles....

JCL82
08-24-2009, 04:33 PM
Also forgot to say i did replace the fuel pump like 40,000 miles ago ?

j cAT
08-24-2009, 10:21 PM
Also forgot to say i did replace the fuel pump like 40,000 miles ago ?

drive around with the fuel pressure gauge connected,,see if pressure drops out...check /replace relay,,fuel filter,,ground of fuel pump at the frame rail next to fuel tank ....

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