Whistling noise coming from engine area

Asked by Johnron314 Jul 08, 2015 at 02:35 PM about the 2003 Jeep Wrangler Rubicon

Question type: Maintenance & Repair

When I drive at approx. 30 - 35 mph and over I start to hear a whistling noise from the engine area, it'd driving me crazy a friend suggested it may be the front axle but not sure if he's correct?

3 Answers
55

Jeepster16 answered 8 years ago

My whistling noise is intermittent. And spmetimes it happens while slowly going up a steep grade. Starts and lasts for maybe 10 to 15 seconds. I have it in the shop now fir the techs to check it out.

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55

Jeepster16 answered 7 years ago

It turns out that the noise was coming from a resonance of a heat shield plate under the engine. The speed and engine RPM combination created the resonant frequency. The dealer exchanged the plate and the noise went away. My physics degree has finally come in handy.

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