Fast Idle Issue On My 2001 X5 4.4

[slicksterps1]

Hi Everyone,

High idle issue on my 2001 X5 4.4 Does anyone experience this? My X5 idles at like 8000 rpm and when I let my foot of the brakes it takes off, it’s hardly noticeable with normal driving, but if im in traffic, you have to really watch it because I will be on the car in front of me really fast even more so if I am going down hill! Is this a normal idle speed for X5’s? What does your X5 idle at?

[noncom23]

?Idle control valve. Might want to get it looked at.

[Boston X5 4.4]

Originally Posted by slicksterps1

Hi Everyone,

High idle issue on my 2001 X5 4.4 Does anyone experience this? My X5 idles at like 8000 rpm and when I let my foot of the brakes it takes off, it’s hardly noticeable with normal driving, but if im in traffic, you have to really watch it because I will be on the car in front of me really fast even more so if I am going down hill! Is this a normal idle speed for X5’s? What does your X5 idle at?

I am assuming you meant 800 not 8000.
When cold it idles at around 800 but drops down to ~550 when warmed up.

[slicksterps1]

Yes, you are right 8000 would be a screamin idle. I meant 800 rpm.

Thanks

[acattaneo]

could be a vacume leak or your gas cap is not tight.

[RamVA]

I would guess, in this order:
Idle Control Valve
Throttle Body
Vacuum Leak

I had this problem with my CRX and it took forever to diagnose. Turned out to be a bad coolant temp sensor which was giving the IACV a bad signal.