Rough start

[hN!]

Hey there

vt v6 has a rough idle when starting cold Wont do it when hot... goes for about 5 seconds then its normal I thought it might be fuel related but it will fire up perfect when the car is hot Also when driving along it will loose power for a second or 2 then power on again very strange.. I was thinking maybe IAC valve but i could be way off not sure where to start

[Killr6]

the cold starting could be the fuel pump on its way out. its a common thing.

[CAPRILICIOUS WL]

Start off by chaining the fuel filter and fill up with BP Ultimate 98 octane. See how u go after a few drives.
If rough start is still there have a look at all ur plugs and replace.
Let u's know how u go.

Dave.