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	 2010 Ford Expedition EL XLT 5.4L Booster Noise 
		
		if you do a quick acceleration or a light acceleration you here a whistle noise at the booster take vacuum line off at check valve hold finger over the vacuum noise gone felt like it had to be brake booster new from ford still have a noise smoke tested at the ... 
                        
                            FIX posted 5/11/2017
                             
                 
                            
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| VIN | 1FMJK1F59A | 
| Engine | 5.4 L / 8 cyl / FLEX | 
| Trans | 6-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Affected | Booster Noise | 
| Conditions | Whistle | 
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 Vehicle Data
                2010 Ford Expedition EL XLT
| VIN | 1FMJK1F59A | 
| Engine | 5.4 L / 8 cyl / FLEX | 
| Trans | 6-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Affected | Booster Noise | 
| Conditions | Whistle | 
                            
5 Replies Received
          5 Replies Received
          
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