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Home >> Ford >> 1996 >> Aerostar Van Window >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - Overhaul - 4R44E & 4R55E Automatic Transmission >> Testing >> Stall Speed Test >> Testing Precautions

Testing Precautions

  1. Engine coolant and transmission fluid must be at proper levels and operating temperatures. Linkages must be adjusted properly. Hold accelerator down just long enough to get a stable tachometer reading. DO NOT  floor accelerator for more than 5 seconds.
  2. DO NOT  exceed maximum specified RPM for vehicle. Before shifting into each selector position, run engine in Neutral at 1000 RPM for 2 minutes to cool transmission. If engine speed exceeds specification, release accelerator immediately, as this is an indication of clutch or band slippage.
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