94 Saturn sl 1.9 has irregular miss? under load

Discussion in 'General Motoring' started by eldon, Jul 30, 2004.

  1. eldon

    eldon Guest

    Saturn 1.9 auto. The car will feel like a "bump" at idle when stopped at a
    light or stop sign, mostly when engine is warm. Usually has more than a
    single bump at a time. This also momentarily shuts off the air for a
    split second if it is on. Hesitates on acceleration and also has bump
    feel like a miss, 120.000 miles. I have changed fuel filter, fuel pump,
    vacuum lines, cleaned the tbi, cleaned the egr, put in new plugs, AC rapid
    fire, and air filter. The engine continues to have this miss. No engine
    codes are thrown and idle speed is about 600 in gear. Has never had any
    problems until now and can't figure it out.
    eldon, Jul 30, 2004
  2. eldon

    davemac Guest

    If you haven't replaced your plug wires, you're overdue. Same thing
    happened to my 94 sl1 about 2 months ago. 117K on it. After
    replacing the wires it was fine. Also check for corrosion on the coil
    posts and clean then off with emery or very fine sand paper (600+).
    davemac, Jul 30, 2004
  3. eldon

    Napalm Heart Guest

    I agree with this. Had the same experience with my 96 SL2. Same with
    my Dakota. It was running like crap and putting out SES codes. A new
    set of wires took care of the problem.

    Don't forget to put dielectric silicone grease inside the wire boots.

    Napalm Heart, Jul 30, 2004
  4. eldon

    eldon Guest

    Thanks Guys. That was going to be my next step. I have completed it and
    everything is fine now.
    eldon, Aug 1, 2004
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