bloody hell! Idling at 3000rpm

[V1DL3R]

After a fair few issues recently the car has been running great the last few days. Come to turn the key today, massive back fire and now it idles at 3000 revs. What the hell is going on? and right before Sliverstone Classics.

Anybody have any clues what this may be? I have checked (what I think) is the vac pipe which attaches to the manifold and it seems to be okay.

Any help will be greatly appreciated.

[YellowShed]

Pipe under the throttle has popped off....

Put it back on and it'll be OK.

YellowShed

ETA - or maybe not. Could be a cracked manifold if the backfire was that severe

Edited by YellowShed on Thursday 24th July 17:44

[mgbond]

YellowShed said:

ETA - or maybe not. Could be a cracked manifold if the backfire was that severe

That's what I would have said and why it's now idling higher as it's sucking in more air.

[V1DL3R]

The pipe work all seems in order with no restricted flow. Have serviced my BOV in case it was stuck open. I seriously hope it's not a cracked manifold.

I can't test it anymore as the battery seems to be dead.

Does anyone want to buy a Noble? I'm seriously getting ticked off with it,

[2.5bluenob]

stick with it! when you overcome the problems the miles of smiles you get from a noble cant be matched by any other car.

[V1DL3R]

I assume you guys are talking about the intake manifold?

[2.5bluenob]

V1DL3R said:

I assume you guys are talking about the intake manifold?

yes on the 3L they are plastic and can break.

[AMG Merc]

This sounds like the old stuck throttle cable issue. Do you know if the car's had it's throttle cable rerouted and/or renewed?

[V1DL3R]

It doesn't but have checked the cable and it's moving freely. The butterfly is also snapping back to a fully closed position. Cracked manifold would make sense as I can't find any loose pipes or leaks anywhere else. Am I right in thinking the manifold is from a ford escape?

[2.5bluenob]

V1DL3R said:

Cracked manifold would make sense as I can't find any loose pipes or leaks anywhere else. Am I right in thinking the manifold is from a ford escape?

its a noble part! and not cheap

[V1DL3R]

You sure? This puppy looks like it would be a straight swap.

[2.5bluenob]

that looks the same to me. i thought they were noble specific. id say go for it

[Nebby]

Just a suggestion but has anyone looked at the st220 manifold being an alloy one, does anyone know what the differences are?

[Nebby]

Just a suggestion but has anyone looked at the st220 manifold being an alloy one, does anyone know what the differences are?