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Strange Noise from 740GL 700 1989

Don't know about the buzzing but the gas tank is more than likely 60L (could be 80L if you live in europe) but either way that is 1)horrible or 2) gaustly horible gas mileage (specs: 20mi/usg-city & 24mi/usg-highway for auto 230f). When have you last done a tune up? Cheap fixes include changing out the plugs and wires and if you have over 100000 miles on the car, change out the o2 sensor as well. Then check the FAQ for more tune up info.

Maybe testing the Fuel pres. reg. would be in order too since it might be causing the injectors to be dumping too much fuel when not necessary.

Good luck,
Tim

ps. I get ~ 430km or about 270mi per full 60L tank - mixed city driving.






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