Idle Issue

[ENVYOSXR]

guys,

I have searched the forums for a while now about idle issues but couldn't find anything like my problem. Car is a BA XR6T 6SP manual, drives perfectly until I need to slow down to a stop. I put my foot on the clutch at about 1500RPM and roll to a stop. When I do this the RPM lifts to about 2000rpm and wont usually drop to normal idle until I have come to a complete stop for 5 seconds or so. Once it reaches normal idle it stays there.

I remember having this issue about 4 years ago and it fixed it self, has now just started doing it again.

Any ideas?

[ratter]

try cleaning your throttle body, check for vacuum leaks, check the o2 sensor

[ENVYOSXR]

I cleaned the throttle body about a month ago, ill check the other stuff out on the weekend.

Cheers

[ENVYOSXR]

Ok I clearly have a vacuum leak at the intake manifold gasket, tracked it down with a bit of hose to isolate the sound. Its leaking on the first cylinder, whats people experience changing this their self?

I have no problem doing it but does the manifold usually need shaving or is that uncommon?

[Mr_4.0]

Cyl 1 is very common!

Pretty straight forward to do yourself. Shouldn't require any skimming. Make sure you do the bolts back up to proper torque setting.

[ENVYOSXR]

Yea looks fairly simple, how much gaskets usually cost? Ford quoted my old man about $500 to get his fixed a month or so ago.

[ENVYOSXR]

Fitted a new intake manifold gasket, car idles perfectly again.

[XXXRTURBO]

I got the same issue at the moment with my fg runs all good but when I come to slowing down and stoping it idles like sh*t sounds like the cars camed

[james3024]

Check your coolant maybe milkshake I've heard they idle weird when milkshaked xxxrturbo

[Impellor]

Anyone know the inlet manifold torque settings.

Cheers