14 mpg, New fuel injectors? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 01-28-2003, 07:57 PM   #1
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Default 14 mpg, New fuel injectors?

I have been getting about 14mpg for a few months now. It is almost all city driving. Once I took it out on the highway for a while and when i filled up i got 19 mpg. I am thinking that I have a leaking fuel injector, because when I changed the spark plugs, once of them had gas on it. I was going to check the pressure of the fuel line soon. But anyway, I plan on replacing the injectors. I also want to get a new O2 sensor. I found some refurbished fuel injectors for $110 a piece.
Does that sound right? Maybe someone could give me a recommendation on where to purchase new injectors and an O2 sensor.
... I just got in an accident, the bonne isn't looking very happy..
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Old 01-28-2003, 08:15 PM   #2
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Get the 8-digit part numbers and run them through www.gmpartsdirect.com

I think you'll be surprised. Usually 40% cheaper than dealers, and brand new AC Delco stuff. Some of the part numbers we can help you with.

I think the most common contributor to bad mileage is the O2. That'* a safe bet if it has over 60,000 miles on it. I'd be tempted to change the injectors if I found a fouled plug, too. Sounds like you're on the right track here.

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Old 01-28-2003, 09:16 PM   #3
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Depending on your year & model, There may be a Injector re-seal kit available instead!
This would keep the cost down & allow you to practically rebuild your own injectors too!
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Old 01-28-2003, 10:33 PM   #4
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thanks for telling me about the gmparts site. i found the part number> 24501509 for the injector. They are $55. I'll probably end up getting one.
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Old 01-28-2003, 11:41 PM   #5
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What'* the deal on that kit Al? Do you know what year/series it was available for?
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Old 01-29-2003, 12:20 AM   #6
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Quote:
Originally Posted by willwren
What'* the deal on that kit Al? Do you know what year/series it was available for?
Group: 3.331 93 H 3.8L (L27) Seal Kit, F/Injr (O-Ring) P/N: 17112981 Qty: 1
Group: 3.304 88-91 H3.8C (LN3) 92 H 3.8L (L27) 92-93 3.8-1 (L67) Seal, F/Injr (O-Ring) P/N: 10031124 Qty: As Req (Upper & Lower - Each, Requires 2 per injector)

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Old 01-29-2003, 02:00 AM   #7
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check with summit racing for the injectors. i just got a set of Accel 24 lb injectors for 174 bux. and they are match flowed too.
im sure they have stock flow injectors too at the same price.
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Old 01-29-2003, 09:13 AM   #8
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MSD also provides replacement O-Ring Seals:
Injector O-Ring Seals P/N: 2100 (Pack of 16 seals)
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Old 01-29-2003, 10:09 PM   #9
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I would like to know if that $174 is for a whole set of 6 too. If i could do that, it would save alot of money
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Old 01-30-2003, 04:01 PM   #10
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Before you get new inj you might want to swap 2 injectors to see if fouled plug follows injector or cylinder. Then you would know if injector or something more.
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