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« on: 29 August 2010, 17:09:31 »
engine very rough when the engines cold,sounds like some cylinders missing. and brake pedal also intermittently very stiff and unresponsive before cars fully warmed up, as if no assistance.
also air con does not seem to chill properly,but does blow cold air.
not too bothered about air con but suspect vac pipe issues, and I gather that brakes air con and brakes all rely on a vaccum. when I start up I hear a sound behind dash,? sucking. and when I turn it off with bonnet up.theres a definent hiss from the top of the engine at the back
if I wait till the engines warmed up a bit (generally the time it takes to smoke a cig) car runs okay, the engine and brakes are fine.
its been doing this a while, been to garage who took off pipes to top of engine and cleaned some gunk out of them, and changed oil, in hope that replacing old thick oil might be causing things to stick when cold. does not seem to have helped as yet. posted similar a while back, suggestions of idle control valve and exhaust manifold. both seem okay. ICV appartently only a year old.
any suggestions gratefully recieived, thanks.
