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post #1 of (permalink) Old 04-12-2001, 06:28 PM
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Gas Hog

I have a '92 sonoma 4x4, w/4.3L, I know the 46" light bar on top of the truck decreases gas milage, but when i bought it in 1999 I could get 22 mpg, now I only get 14 mph, 16 if on a highway going down hill, with the wind pushing, every thing is stock except the tires but I got 22 mpg w/ the bigger tires. It only has 78,000 miles on it. Any idea what's going on.

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post #2 of (permalink) Old 04-12-2001, 09:48 PM
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Re: Gas Hog

My guess is either the 02 sensor, or possibly in need of a tune-up? check your timing also. Just my $.02
A.Smith

1989 GMC S-15 4x4 4.3L/700R-4, 3.08s, 31" Sport Kings For Sale
1985 S-10 4x4 Soon to have 3504BM/TH350/D44/14FF, 35" Boggers
post #3 of (permalink) Old 04-13-2001, 07:08 PM
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Re: Gas Hog

Have you tried replacing your fuel filter and air filter? Other things you may want to check would be your cat. converter, pcv valve, O2 sensor, distributor cap and rotor. How do your plugs and wires look? Hope this helps.

-Pete

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