In what order are these to be performed? AC and ISC - Page 2
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Cadillac Seville / Cadillac Eldorado Forum Discussion, In what order are these to be performed? AC and ISC in Past Cadillac Vehicle Discussion; how is that tested?...
  1. #16
    firstimecaddi's Avatar
    firstimecaddi is offline Cadillac Owners Enthusiast
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    Re: In what order are these to be performed? AC and ISC

    how is that tested?

  2. #17
    Ranger's Avatar
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    Re: In what order are these to be performed? AC and ISC

    Locate the FPR on the fuel rail under the beauty cover. Pull the vacuum line (red arrow) at idle and look for any sign on fuel at the nipple. There should be none.
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  3. #18
    Ranger's Avatar
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    Re: In what order are these to be performed? AC and ISC

    Wait a minute. Are we talking about the '94 or '95 in your profile?

  4. #19
    firstimecaddi's Avatar
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    Re: In what order are these to be performed? AC and ISC

    the '94

  5. #20
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    Re: In what order are these to be performed? AC and ISC

    OK, in that case disregard the above. You will have to remove the (functional) manifold cover. Inside is where you'll find the fuel rail and FPR. Since the FPR is subjected to manifold vacuum, there is no need for a vacuum hose. The nipple will simply be exposed. ( I know what you're thinking). Go to KOEO (key on, engine off), but DO NOT CRANK THE ENGINE. KOEO will energize the fuel pump and pressurize the system. Just like above, look for fuel leaking from the nipple.

    P.S.
    Be sure to use the proper torque specs when reinstalling the manifold cover. It does not get tightened real hard. It has to be able to lift in order to vent the manifold in the event of a manifold over pressurization (backfire).

  6. #21
    firstimecaddi's Avatar
    firstimecaddi is offline Cadillac Owners Enthusiast
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    Re: In what order are these to be performed? AC and ISC

    ok thanks will look into this next...

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