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January 23, 1997 Service bulletin

Various vehicles may experience a high pitched whistle during heavy acceleration at 3800-5000 RPM when...

Ford technical service bulletin BC3494972301 for 1997 Ford Explorer and 1997 Mercury Mountaineer.

Bulletin number
BC3494972301
Component
Engine and engine cooling: exhaust system: manifold/header/muffler/tail pipe
Summary
Various vehicles may experience a high pitched whistle during heavy acceleration at 3800-5000 RPM when engine is warm- to fix, remove existing muffler and replace with same part. Jd

Owners of these vehicles have filed 216 complaints in the engine category.

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