#4 Fuel Injector Leak - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 03-09-2006, 06:29 PM   #1
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Default #4 Fuel Injector Leak

I've been getting this intermittent fuel odor inside the car especially at idle or standing in traffic. I looked at the fuel rail, the injectors, and the general vicinity on top of the engine for anything obvious. It appears that #4 fuel injector is leaking at the base where it makes up to the lower intake. Has any one else run into this problem. Looks like possible O ring failure.
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Old 03-09-2006, 07:00 PM   #2
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Default Re: #4 Fuel Injector Leak

Quote:
Originally Posted by markwb
Has any one else run into this problem? Looks like possible O ring failure.
Not yet Mark, but in the same general area. I had oil seeping past the threads on the lower intake bolts. I took them out and reinstalled them with Permatex 2B coated on the threads. No more seepy seepy.
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Old 03-09-2006, 07:06 PM   #3
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Nope not yet for me either mark but uhh mine only has like 8400 miles on it!
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Old 03-09-2006, 07:21 PM   #4
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I would definantly look into replacing all the o rings on the injectors if that looks to be the case.

Prolly about a 1 hr job.
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Old 03-09-2006, 09:27 PM   #5
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Been doing any work back there lately, plugs, map sensor, vacum lines etc? You may have bumped it and corupted the seal?
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Old 03-20-2006, 11:09 PM   #6
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Check your fuel supply quick disconnect fitting.
If it is leaking like mine was, the fuel collects around the number 4 injector.
NAPA sells a slick replacement fitting for around $8 that is very easy to install.
The o-rings inside the factory fitting have a tendency to dry out and lose the sealing ability.
See my post for 2002 SLE intermittent fuel smell.
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Old 03-20-2006, 11:56 PM   #7
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Not yet....but please feel free to check mine out at NEBF!
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Old 03-21-2006, 06:46 AM   #8
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Quote:
Originally Posted by singscountry1967
Not yet....but please feel free to check mine out at NEBF!
Yes, I will do that. NEBF is coming up soon!
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Old 03-21-2006, 06:48 AM   #9
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Quote:
Originally Posted by gene super
See my post for 2002 SLE intermittent fuel smell.
gene, I'll check that out.
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Old 03-21-2006, 10:38 AM   #10
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Mark...we fixing this up at NEBF? If so let me know and I'll get those rings ordered up.
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