4.6L Engine Rattle when accelerating.

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Jul 30, 2023 | 02:53 PM

#16

nwfordOR

1st Gear

Joined: Jul 2023

Posts: 1

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rattle

Quote:

Originally Posted by Mucifer

Mine did this for years. Bought in 2000 with 28,000 miles on it. Fast forward to 2017. Still runs strong with 192,000 miles still with original engine and transmission. Been running 87 octane for years. Even filled up with Shell 92 octane only and still the engine rattled under load (Sounded like metal ball rattling around in a spray paint can). Never rattles when revving engine in neutral. Waited until I was running on low fuel light. Threw some NOS Racing formula Octane Booster 12010 and 22 gallons of Shell 92 octane. Cleared that rattling under load noise completely, the same day. Thanks for the hot tip. Much appreciated.

After the 92 fuel and octane booster have you been able to run regular 87 octane fuel without the rattle under load?