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September 1, 2003 Service bulletin

Spark knock, detonation, or ping condition on tip-in or during steady state operation at or near wide open...

Ford technical service bulletin 17221 for 2002-2003 Ford Ranger.

Bulletin number
17221
Component
Engine and engine cooling: engine
Summary
Spark knock, detonation, or ping condition on tip-in or during steady state operation at or near wide open throttle. Tt

Owners of these vehicles have filed 72 complaints in the engine category.

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