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CaseyVII

2010 FG XR6 Weird Whine

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So I've just bought a 2010 FG XR6 and I noticed when driving it around that when I let off the throttle and get this whining sound coming from the back. my guess is it may be the diff? has anyone else had this before at all or know anything about this at all?

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good ol falcon diff whine aahah.... very common, but I thought more ba/bf utes suffered from it though. pretty much every trade who had a falcon ute their diff whined. 

 

diff bush

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45 minutes ago, Ford Freak said:

good ol falcon diff whine aahah.... very common, but I thought more ba/bf utes suffered from it though. pretty much every trade who had a falcon ute their diff whined. 

 

diff bush

was reading a little into that ahah, thanks for reply man! should I look into it more or shouldn't be a worry? first falcon ive ever bought so new to all this ahaha!

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Well I better get back on topic. I bought my car brand new and within the first 10000km I knew I had a whine.

After that I tried to convince ford that there was something wrong and this went on for months.

Eventually I got to the point where I threatened to return the car and managed to convince the service manager to go for a drive with me.

 

He knew right away what it was within 5 mins of driving. He told me to go back to the service centre. 2 weeks later I had a new diff installed in the car.

Main things I need to point out. The whine happened at 65-67km/h. This is the speed I set my cruise control at quite often in town.

The could not be any load on the engine like going up a hill as it would not whine. flat road where the car was coasting is where you could really hear it.

 

I still have a small whine now at about 56km/h but I hardly ever cruise at that speed and the loud exhaust I have cancels it out.

I did try changing the diff oil and it did not make a difference.

 

Good luck with the warranty @CaseyVII

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I got rid of the wine in my FG by having the diff rebuilt with a Harrop TrueTrac. Did add some extra clunking noises though, so there's that.

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