Problem when starting car

[joshfto]

First thing when i start my car in the morning it makes a fluttering sound as the engine revs. It sounds like something grinding. it only does it when i first start up, unless i turn it of and dont go driving. And also is it supposed to rev up around 2000 without putting your foot on accelerator when starting car?

[TimmyD]

well mine idels at about 1500 when i first turn on my car and about 1 / 2 mins later it drop too about 800 revs because the engines warm.

Also having the air-con on makes the car rev / idel a bit higher.
So your revs seem to be fine but im not sure about the fluttering sound?

Tim

[FTO338]

Hmmm joshfto, have u changed your air filter? cause mine does that "fluttering" noise at start up but it only happen after i changed the air filter.

well mine idels at about 1500 when i first turn on my car and about 1 / 2 mins later it drop too about 800 revs because the engines warm.
Tim

1/2 mins to warm up or 1-2mins to warm up??? my said 1200 at start and after 5-10mins it goes down to 780-740, & its was measure with the Apexi RSM, so its a digital read out, no guessing heehehehehehe

But one thing i do notice is that the analoge reading seem to be a little bit higher then the digital one. So your 1500 would be same as mine 1200 at start up.

[payaya]

check your belts! That fluttering noise is a sign of one of the belts not tensioned properly. Adjust the screws on the tensioner, should remove the noise.