flex fuel injector

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Dec 14, 2017 | 01:26 AM

scottdanny22

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flex fuel injector

I have a 2002 suburban 5.3l flex fuel i just replacewd the intake and the fuel injector orings now one of the injector leaks upon start up, bAre the orings and injectors different on a flex fuel motor do the orings interchage from a standard motor injecter and a flex fuel motor? thanks in advance

Dec 15, 2017 | 12:33 PM

Lsxford

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From: Winfield AL

The flex injectors flow more fuel. The orings are the same iirc. If you only have 1 leaking id bet it got cut during assembly.

Dec 8, 2020 | 09:00 AM

Lonnie Lee

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From: Texas

He’s right

I had a couple get cut always keep extras the trick is lube the o ring put all the injectors in the rail first while it’s off then put them in the intake

Quote:

Originally Posted by scottdanny22

Dec 10, 2020 | 03:11 PM

AUS Injection

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From: Tempe, AZ

As stated before, I bet that leaky injector is due to a bad O-ring. I would recommend using Vaseline when installing so they don't get pinched and tear. Good Luck