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No power when the engine is "cold 200 1984

posted by  someone claiming to be John McPhail on  Sun Nov 18 16:50 CST 2012 [RELATED]

1984 244, B23F, LH 2.0, M46, 236,000 miles.

The car starts right up and idles like a sewing machine, but it has no power to speak of until it has been running for at least 2 minutes. Let up on the clutch, give it a little gas and attempt to pull away from the curb...it stumbles and will die unless I push the clutch in right away. Funny thing is that it will rev normally in neutral w/no load.

This ONLY happens if the car has been sitting for a couple of days. If I drive it every day, it's not a problem. It also happens on the first start of the day only.

Wiring harness was replaced back in 2003. Fuel pumps are less than five years old. Amount of gas in the tank does not matter.

I've replaced, in the last week: plugs, wires, rotor, fuel filter, air filter. Checked valve clearances and they did not need adjustment (last adjustment in 2007 at 220K).

Funky air mass meter?








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    No power when the engine is "cold 200 1984

    posted by  pageda on  Sun Nov 18 17:49 CST 2012
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    last visit: Fri Oct 24 13:18 CST 2014
    [RELATED]

    Your symptoms do sound like a failed AMM, but they don't go away once the engine is warmed up. It wouldn't hurt to swap in a known good spare to check it out.
    Dan








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    No power when the engine is "cold 200 1984

    posted by  Onkel Udo II on  Sun Nov 18 17:15 CST 2012
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    last visit: Fri Oct 24 08:50 CST 2014
    [RELATED]

    You said it only happens when you try to pull away in gear. Any chance you have exceedingly thick tranny fluid coupled with bad ECT?








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    No power when the engine is "cold 200 1984

    posted by  machine man on  Sun Nov 18 17:03 CST 2012
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    last visit: Wed Oct 22 15:40 CST 2014
    [RELATED]

    Start with replacing the fuel pressure regulator. Make sure the hose is good and getting vacuum from the throttle port. It may be leaking off rest pressure during extended shut downs. It also will not provide enough fuel pressure to fully provide the fuel quantity needed for enough enrichment under acceleration.

    Phil






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