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HoneyDutch

2007 Ford Fusion 2.3l "Grinding" Noise and "burning" smell

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Posted (edited)

Hey all, I am getting this strange grinding noise and "burning" coming from the front right side of the vehicle. It only happens around 1000-1500 RPM's, with the A/C on, coming from a complete stop or driving really slow in that range. It will not happen when the car is parked or if the A/C is off. When I look under the hood, I can't replicate the sound or smell... and it looks like there may be a little crud on the ends of the pulleys, but I can't say for certain what it is. The A/C blows very cold and I don't hear any noises from the compressor. The transmission fluid is not low, but it is a little dark. It's never been flushed, but the Fusion shifts good. It's just the grinding noise and weird smell at acceleration while the A/C is on.

 

I can't figure out what it is, has anyone else had this issue? If so, what was the problem? Thanks in advance.

 

It is a 2007 Fusion 2.3l SE, automatic transmission, 62000 miles

Edited by HoneyDutch

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This may be due to the idler pulley.

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This may be due to the idler pulley.

 

 

I've been reading a lot of threads of people having that issue, so I am going to start there. Do you recommend purchasing a stronger bolt and should I tap new threads?

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UPDATE - The problem is gone. I replaced both the idler pulley and belt tensioner, along with a new belt. It drives much better and no grinding noise / burning smell.

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