From Cold Start, car has trouble holding idle until warm

[elikoy77]

After sitting overnight my ford galaxy 2.3 petrol Automatic always starts at the second crank and has trouble holding an idle (vibration noticed). Sometimes it shows the battery light on the dashboard I have to hold the gas down for a while until both vibration and battery light disappear and then its fine.
Not sure if related. Sometimes while stopped in traffic or at a red light, Then when I do need to go its like something is wrong with the engine, kind of hesitating and doesn't have much power. Once I get moving its fine.
One time, as I engage my gear on reverse and stepped on the gas the car stalled and shows battery light on the dashboard and I had to restart it.

[brianh]

Sounds like a sticking Idle control valve - its on the inlet manifold and may respond to being cleaned. It may also be a split vacuum hose - can you hear any hissing sounds when the engine is running, the usual place it fails is a split on the hose that goes to the brake servo, if its split you can find the brakes still work as normal even with quite a large split in the end of it. Though given its worst at cold its probably a sticky ICV

[elikoy77]

I replaced the brake servo hose 4 days ago. No hissing sounds when the engine is running. Is there a special way to replace the brake servo hose?

[brianh]

No there isn't - I've just used silicon vacuum hose to replace it, the original stuff goes hard and splits. Did this happen after replacing the hose? If so its possible you've introduced a leak somewhere else if another hose has come off, though i would expect that if you had you would hear the hissing sound.

I think you will find the Idle control valve is the culprit really.