Hello,
I checked the search function and didn't really find an answer so, here goes...
I have a '95 Lumina with a 3.1L V6 with about 145,000 miles. I recently replaced the lower intake manifold gasket and seemed to have developed a fuel leak. I suspect it may be one of the fuel injectors but have not been able to verify the exact location. I do not have a lot of experience with fuel injection and have a question regarding the fuel injector to fuel rail clips.
During tear down a couple of the clips were broken and the replacement clips I bought are not exact replacements. I question - if the fuel rail provides downward force on the injectors via the two fasteners that hold the fuel rail to the lower intake manifold and "sandwiches" the injectors between the rail and manifold, what is the purpose of these clips? Even when I looked at them initially they didn't seem to provide much sealing force. Do they just secure the injectors to the rail for installation? I would think the O-rings would be enough to seal any leaks? I did use new O-rings on both ends of the injectors.
After the repair the engine started right up and ran OK except for the smell of raw fuel. Admittedly, I have not taken a lot of time to investigate. I needed a few days of healing after replacing that pig and it's getting cool here in WI but I just thought I would check to see if anyone has had similar experience.
Thanks in advance for any assistance,
Gary