Where is the fuel filter on a 90 Coupe DeVille??
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HT4100 4.1, 4.5, 4.9 Discussion, Where is the fuel filter on a 90 Coupe DeVille?? in Cadillac Engine Technical Discussion; I have a 1990 Coupe Deville which just started to stall. Today it will not start. I have noticed a ...
  1. #1
    Dragonshield is offline Cadillac Owners Member
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    Where is the fuel filter on a 90 Coupe DeVille??

    I have a 1990 Coupe Deville which just started to stall. Today it will not start. I have noticed a loss of power, like it was starving for fuel when trying to go up hills. I took off the aircleaner and tried to start the engine, pumped the gas pedal and should smell gas. I don't. My guess is either the fuel filter or fuel pump. When I just turn on the engine with the key I do hear what I belive to be the fuel pump.

    I want to start with the simple fix, the filer. Can anyone tell me where they stashed the fuel fileter on this car?/

    Thanks

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  3. #2
    elwesso's Avatar
    elwesso is offline Cadillac Owners Master
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    Re: Where is the fuel filter on a 90 Coupe DeVille??

    Welcome....... Thanks for signing up

    Im not sure exactly where it is, but if I recall correctly some other modern cadillacs have the fuel filter under the car.... Not sure.......

    And, if Im not mistaken, you wont smell gas because this isnt a carburated engine.......

  4. #3
    davesdeville's Avatar
    davesdeville is offline Banned
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    Wes is right, it's fuel injected. I don't know where the filter is, maybe if you go buy a replacement at a parts store, the person there could probably tell you.

  5. #4
    vanaisa's Avatar
    vanaisa is offline Cadillac Owners Enthusiast
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    There are two places, where fuel filter can be: under the car near fuel tank or under the car near transmission, in left side...
    Its really easy to replace too

  6. #5
    elwesso's Avatar
    elwesso is offline Cadillac Owners Master
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    Re: Where is the fuel filter on a 90 Coupe DeVille??

    Will you need to jack up the car to get to it, or can you just lay on the ground to get it.....?

  7. #6
    Katshot's Avatar
    Katshot is offline Cadillac Owners Master
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    Re: Where is the fuel filter on a 90 Coupe DeVille??

    If memory serves, it's on the right side right around the area of the R/R seat outboard side. The Fleetwoods are to the inside of the frame rail on the opposite side (left side) of the car. It's a metal, in-line filter.

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