2004 5.3 cranks no start

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2004 5.3 cranks no start

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Chevrolet Forums >> Chevy Trucks, Vans & SUV's >> Silverado >> 2004 5.3 cranks no start

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2004 5.3 cranks no start - 7/5/2008 12:52:50 PM

sscamaro2001

Posts: 7
Joined: 4/10/2008
Status: offline

Hi All,

I have 2004 Silverado Ext Cab 4x4 with 5.3 "T" engine 47k miles.
Truck runs great, but several times now after a heavy rain storm the engine refuses to start.
It cranks fine, no gas smell. If I let it sit overnite it fires right off next morning.

One backyard mechanic says it may be the factory theft system shutting off fuel?
Also has an aftermarket autostart system.

I have also noticed lately that the Theft Deterant light on the dash sometimes stays on when I''m driving but goes out after restart. My key does not have a chip, so i''m guessing it does not have the passive system?

Any idea before I start replacing plugs, wires, coil packs, fuel filter amd fuel pump?

Thanks in advance for any help.