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302w fluttering at 1500rpm 

 

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 Post subject: 302w fluttering at 1500rpm
Posted: Sat Jun 25, 2011 11:59 am 
Stock as a Rock
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Ride: 09 FG XR6

Location: Traralgon
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Got a 220kw AU XR8 which iv had a few problems with, the latest of which is a fluttering noise at 1500rpm comeing from what sounds like the left head, if you have ever had a loose guard inside the wheel arch at 100ks it sounds like that... no other way to describe it, any ideas would be appreciated, otherwise I'm takein her to my local ford dealership to get diagnosed...

 

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 Post subject: Re: 302w fluttering at 1500rpm
Posted: Sat Jun 25, 2011 1:35 pm 
Getting Side Ways
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Ride: EL XR8, '08 Mondeo XR5t

Power: 205 rwkw

Location: Perth
WA, Australia

Does the noise speed up with revs or is it constant?

 

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 Post subject: Re: 302w fluttering at 1500rpm
Posted: Sat Jun 25, 2011 2:47 pm 
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Well its only at around 1500rpm, when you go over or under it doesn't do it, that's what's got me stumped... I mean it sounds like its in the head, but I could be something hideing away in the engine bay that sounds like its the head... I'm just hopeing its not anything major...

 

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 Post subject: Re: 302w fluttering at 1500rpm
Posted: Sun Jun 26, 2011 9:36 am 
Getting Side Ways
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it could be the charcoal canister purge solenoid
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 Post subject: Re: 302w fluttering at 1500rpm
Posted: Sun Jun 26, 2011 2:20 pm 
Stock as a Rock
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Age: 34

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Gallery: 9 images

Ride: 09 FG XR6

Location: Traralgon
VIC, Australia

Don't know about the charcole canister, that's under the air box in the front bumper... my mech recons they don't have a solanoid?

 

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 Post subject: Re: 302w fluttering at 1500rpm
Posted: Mon Jun 27, 2011 10:48 pm 
Getting Side Ways
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Age: 46

Posts: 1887

Joined: 26th Nov 2006

Gallery: 7 images

Ride: EL XR8, '08 Mondeo XR5t

Power: 205 rwkw

Location: Perth
WA, Australia

Have you upgraded to alloy heads? If so, were they emissions or non-emissions? If they're emissions type heads, there'll be holes at the back of the heads that need to be plugged up and can cause this type of sound if they're not. I'm guessing you're probably running stock heads though.

What about PVC? Can this make any noises if it's popped out? Check all vacuum lines at the back of intake?

 

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 Post subject: Re: 302w fluttering at 1500rpm
Posted: Mon Jun 27, 2011 10:50 pm 
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{USERNAME} wrote:
Don't know about the charcole canister, that's under the air box in the front bumper... my mech recons they don't have a solanoid?

they do,i have the same at 600-900 revs,sparky recons tfi unit,gong to shift it.had it towed a few times in hot weather,funny its fine above 1000revs.

 

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