Suppose you had a 2014 Explorer® in the bay with some rear end damage. You repair it as good as new following OEM repair procedures and deliver it to the customer. She looks at the repair and pronounces it perfect. Later in the week, she drives back to the shop complaining about a whistling or buzzing coming from the FRONT of the vehicle. She insists that it must be related to your repair. But the original damage was way back there at the other end of the Explorer.
Playing a hunch, you check for a technical service bulletin (TSB) from Ford® that may describe this condition. Bingo! In just a couple of minutes, you discover that the whistle/buzz-type noise is a known issue, completely unrelated to your repair. Why didn’t the owner detect it before? Who knows? Perhaps she didn’t have the radio volume up this time. Maybe she was more carefully tuned into how the Explorer was driving after the repair.
Now, you can show the TSB to your customer, and you’re a hero. She understands that you perform repairs to factory standards, and she is happy to pay you to take care of this new problem. This is just one small way in which OEM information pays for itself.
Here is an excerpt from Ford’s TSB on how to silence the offending noise:
Whistle or Buzz-Type Noise
Model: 2011-2014 Ford Explorer
Issue: Some 2011-2014 Explorer vehicles may exhibit a whistle or buzz-type noise from the front cowl panel grille cover at highway speeds. This may be caused by the seal for the front cowl panel grille cover not making full contact to the windshield glass surface.
Action: Follow the Service Procedure steps to correct the condition.
Apply masking tape over the area where the front cowl panel grille cover seal makes contact with the windshield glass. Drive vehicle at highway speeds.
On the return road test, remove masking tape to confirm whistle or buzz-type noise.
Is the whistle or buzz-type noise present at highway speeds only with the masking tape removed?
Yes – proceed to Step 3.
No – this article does not apply. Refer to manufacturer’s repair information to diagnose the condition.
Remove the front cowl panel grille cover.
Using a straightedge, measure the distance from the windshield glass surface to the cowl sheet metal at each of the seven mounting holes for the front cowl panel grille cover.
Adjust the cowl sheet metal to increase the clearance to 7 mm (9/32”), as required. This adjustment will allow the front cowl panel grille cover seal to make consistent contact with the windshield glass.
Install front cowl panel grill cover.
Drive the vehicle to confirm the repair.
NOTE: This repair/service information is excerpted from information published by the vehicle manufacturer, and intended for the purpose of promoting OE collision repair information to trained, professional technicians with the knowledge, tools and equipment to do the job properly and safely. Before attempting any repairs described, refer to the complete article in ALLDATA Collision® S3500. It is recommended that these procedures not be performed by “do-it-yourselfers.”
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