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Discussion Starter · #1 ·
I am having issues with the fuel injector return line with the plastic fittings. I have bought 4 sets and.they have all broke. Nothing has changed with truck except fuel filter when this started happening. Any suggestions would be greatly appreciated.
 

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2007 GMC Sierra LBZ
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1,227 Posts
Explain a little more what’s happening. Your talking about the return coming off the injectors right with rubber hose in between?
 

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Discussion Starter · #3 ·
Yes the rubber hose. The plastic piece with the rubber hoses keep breaking. The parts store.said to uninstall my tuner and reinstall, saying to much fuel for some reason. But like I said just started this after I changed.fuel filter
 

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2007 GMC Sierra LBZ
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1,227 Posts
Ok are you using genuine GM parts? Either it is defective parts or the injectors are returning way to much.
 

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2007 GMC Sierra LBZ
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The local shop here developed and sells a metal rail for that but takes some other pluming to hook it up so probably not something you want. That’s what i have on my truck.
 
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