Hi my dad has got a 1998 Ford Cougar 2.5 V6 and when the aircon is switched
on the engine starts to hunt between 750 - 1100 RPM and continues to hunt
while driving until about 2000 RPM giving a jerky feeling, this does
disappear above 2000 RPM however.I would be very grateful if anyone could
shed some light on this problem. Many thanks in advance for any feedback.
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