i have a 1998 406 1.9 td i notice today that when i switch the air con on
the car seems to hesitate, there is a definate decrease in performance,also
feels very lumpy,it used to idle at around 850/900rpm when warm now it idles
at 1000/1100,with the air con off,it does not increase when i switch the air con on
the engine actually runs slower when the fast idle is running at about 950rpm when cold
any ideas as to what could be the problem
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- Joined: 14 May 2001, 05:30
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If its the same setup as the xantia, that is the fast idle lever on the pump being pulled by a cable from a vacuum operated diaphragm, if so check for movement of the cable as the aircon is switched on and opposit movement as the engine speed is increased.