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BF XR6 Knock on takeoff 

 

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 Post subject: BF XR6 Knock on takeoff
Posted: Fri Apr 01, 2011 12:14 pm 
Stock as a Rock
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Ride: BF XR8 Ute

Location: Ridgehaven
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The old ducks 07 BF XR6 makes two knocking noises which happen almost simultaneously when she accelerates from a standing start (Traffic lights etc)

She is not a drag racer by any means either so it is on a normal takeoff.. To me it sounds like it is coming from the rear of the car...

What could it be? Ford can't find anything wrong with it...

Cheers

Alan

 

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 Post subject: Re: BF XR6 Knock on takeoff
Posted: Fri Apr 01, 2011 12:52 pm 
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Ride: 93EB Fairmont / BA Falcon XR6T

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Get the diff bushes checked out.

 

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93 EB II Fairmon8 with 17' EL GT's / Clear indicators / H.I.Ds / Sports exhaust / Lowered 2' / K&N / XR6 ECU.
2004 BA MKI XR6T in Lightning Strike paint / K&N / XR8 bonnet / BF lights and a few tweaks.

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 Post subject: Re: BF XR6 Knock on takeoff
Posted: Fri Apr 01, 2011 1:44 pm 
Getting Side Ways
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And also the rear sway bar links, they have a bush in them, that wears and the rubber bush in the lower rear control arm wears out too. You might also like to check the bush at the front of the trailing arms.
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 Post subject: Re: BF XR6 Knock on takeoff
Posted: Thu Jul 21, 2011 9:20 pm 
Stock as a Rock
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Ride: ba 05 xr6 mkII

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if u find out wat it is let me know because my 05 ba mkII has the same problem.....

 

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05 ba xr6 mkII

Mods: Re-spray, Interior LEDS, K&N air filter, 20" versus rims, SuperLow King springs all round, Monroe Gt shortened rear shocks, 2.5" XFORCE Catback mild steel exhaust with twin 3" tips

The Garage: http://www.fordmods.com/viewtopic.php?f=53&t=106741

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 Post subject: Re: BF XR6 Knock on takeoff
Posted: Thu Jul 21, 2011 9:28 pm 
Getting Side Ways
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CamJam wrote:
if u find out wat it is let me know because my 05 ba mkII has the same problem.....


i assumed you followed the above advice first, then still has you stumped?
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 Post subject: Re: BF XR6 Knock on takeoff
Posted: Fri Jul 22, 2011 8:45 am 
Stock as a Rock
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Ride: ba 05 xr6 mkII

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no i havent tried those options, but there was no post after to state that any of those were actually the problem, so i was just wondering which one of those actually fixed it, sorry.......

 

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05 ba xr6 mkII

Mods: Re-spray, Interior LEDS, K&N air filter, 20" versus rims, SuperLow King springs all round, Monroe Gt shortened rear shocks, 2.5" XFORCE Catback mild steel exhaust with twin 3" tips

The Garage: http://www.fordmods.com/viewtopic.php?f=53&t=106741

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 Post subject: Re: BF XR6 Knock on takeoff
Posted: Fri Jul 22, 2011 10:41 am 
Getting Side Ways
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knocking on takeoff is a common problem in the B-series

rear end/diff bushes are almost always the culprit
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 Post subject: Re: BF XR6 Knock on takeoff
Posted: Fri Jul 22, 2011 5:20 pm 
Stock as a Rock
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Ride: ba 05 xr6 mkII

Location: Gold Coast
QLD, Australia

ohh ok thanks for the help :) every time ive put it in for a service they havent been able to fix it, but ill tell them to replace that and cop the bill on the other end :/ haha

cheers

 

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05 ba xr6 mkII

Mods: Re-spray, Interior LEDS, K&N air filter, 20" versus rims, SuperLow King springs all round, Monroe Gt shortened rear shocks, 2.5" XFORCE Catback mild steel exhaust with twin 3" tips

The Garage: http://www.fordmods.com/viewtopic.php?f=53&t=106741

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