Re: Rough idle

["content22207" <brobertson@xxxx>]

Sounds like you may still fighting that vacuum leak. Vacuum leaks show
their worst at idle or low rpms. Vacuum drops at speed so leak would
be less noticeable.

"Distant helicopter"? Could one of your spark plugs have come loose
from the head? Missing spark plug makes a "poop poop" noise.

Weren't you idling @ 1,400 a couple of days ago? How'd you get rpms
back to normal?

Bill Robertson
#5939

>--- In dmcnews@xxxx, "Payne" <bpayne@xxxx> wrote:
> My car has developed a rough idle that has been most annoying. It sits
> around 850 RPMs, and I know my idle speed motor is working. When
it's at
> this engine speed, it almost sounds like a distant helicopter. By
that I'm
> assuming it's not firing correctly on one cylinder at idle. It
doesn't feel
> like a completely dead cylinder, as when I'm driving it has all the
power it
> used to. I can rev it up and the engine sounds very smooth and quiet.
> 
> The injectors open by pressure, correct? Hypothetically, if I had a
> partially clogged one, would the pressure put through it at idle be low
> enough so it wouldn't open? I heard a while back of someone having this
> same problem. I do have all new plugs and wires, so my next area to
look is
> the fuel system. The car feels great on the road, I just wish the idle
> wasn't so shaky.
> 
> Thank you all!
> 
> payne