vacuum leaks - symptoms?

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arrowhead

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ok i asked some ppl, they say my problem is probably due to vacuum leaks. so i wanna ask the sifu's here as well.

driving as usual... press clutch to get car in idle mode. rpm drops to approx 1.3, then 1.2, then 1.1 then 1.0.... doesn't drop to the "normal" 0.8.... stays at 1.0 for quite abit.

even when i stop, my idle also abt the same as above. on air cond, sometimes can drop to 0.5 or so, but engine never die.

shouldn't it drop straight to 0.8 when i idle? or is that just my imagination?

serviced throttle body, iacv, fitv. had some tuning on the iacv sensor.. along with the distributor.

still like that.=\

vacuum leak? if so... how to check?

:banghead:

thanks. much appreciated.
 
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