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2008 Silverado Fuel Pump Issues.

freerider14
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freerider14 Enthusiast

freerider14

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Posted

Hey Guys, 
 

im hoping you can help me with a problem I’ve been having. 
 

I have a 2008 Chevrolet Silverado extended cab 1500 5.3l LMG vin number 0 truck. 
 

I replaced the fuel pump assembly after having issues with a faulty check valve. Upon replacement, my pressure on the fuel rail is reading ~90psi. Which I’m assuming is being caused by the pump continuously running 100%. 
 

I looked under the truck several times trying to find the control module by the spare tire, but I’m starting to think the LMG doesn’t have one. As my scan tool can’t find it, and when I search under any of the other 5.3l motors for that year, I can see it as an option. 
 

any help would be appreciated. 
 

TIA

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