Bendit wrote:
> Hello all. I need opinions. Car is a 1994 prelude VTEC.
>
> On cold starts, idle climbs to 2 to 2.5K RPM. All is well it seems.
>
> Then after a while, when the engine starts to warm up, the RPM will go
> down, then up, down then up (you get the picture).
>
> When the car is fully warmed up, RPM stays at the same place normally.
>
> Opinions?
>
> Thanks!
>
>
> Ben

check coolant level inside radiator. must be full to the top. if
diluting antifreeze, use distilled water.