Wet Fuel Injectors

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Old 11-08-14, 11:18 AM
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Wet Fuel Injectors

1988 Isuzu Trooper II 2.6L Auto with 200k miles.

Been smelling fuel around and inside vehicle for a little while. Found a couple leaking hoses around the gas filter in rear, replaced them, all other rubber hoses look dry. Yesterday, noticed some fuel under engine in garage so looked directly above and I can see the injector for no. 1 is completely wet. So I know the o rings on injectors are failing...thanks :NO NO NO: Ethanol!

Question is.....considering the mileage, do I go ahead and replace the injectors with reman units or just the O rings? Trooper runs great otherwise!

Thanks in advance for any advice.

Mike
 
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Old 11-08-14, 08:42 PM
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Replace O-rings WITH ORIGINAL ONES and clean injectors same time. Do NOT install aftermarket O-rings.

https://www.youtube.com/watch?v=7aT4S1lIBAY

Just to make sure - ORIGINAL means dealer item. Or, Isuzu factory ones. OEM.
 
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Old 11-10-14, 09:09 AM
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Youre driving with ethanol yeah??! Not wondering about the leakage! Look for seals made for ethanol! This should fix the problem.
 
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Old 11-10-14, 10:10 AM
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ORIGINAL or "aftermarket"? Does Isuzu make o-rings? Who do you trust?
 
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Old 11-10-14, 04:31 PM
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I know a former Isuzu tech who can source OE parts for me and he can get Isuzu O rings.

I asked him about whether I should just go ahead and pop for 4 "new" reman injectors. He said since the truck is running good now, I might ought to stick with these injectors unless I find out they are leaking somewhere other than the o ring seal. He told me to clean the injector body with brake clean, dry it thoroughly, start engine and see if I can determine where fuel is leaking. I have cleaned the injector I can see(no. 1) and will test it tomorrow in good daylight.
 
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Old 02-18-16, 11:18 AM
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Followup on this issue, I ended up installing 4 reman GNB injectors with new seals, replaced all the rubber hose with injector grade fuel hose and special injector grade clamps and the smell is totally gone and the Trooper runs like a Champ!

With the recent new Bosch pump including new pickup filter sock and a new fuel filter, the system will hopefully be good for years to come. We run 90 octane ethanol free gas as this vehicle is not a daily driver which will hopefully fend off any new fuel system issues from cropping up. Thanks to all who posted for the advice!
 
 

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