Silverado, Sierra & Fullsize Pick-ups The Silverado & Sierra have been two of the best selling trucks in the US for decades, and is truly proven to be "like a rock".

2014 Chevy Silverado

2014 Chevy Silverado

Platform: Truck, GMT 400, 800, & 900

engine knock

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Old

Sep 25, 2006 | 10:17 PM

#1

lroewer

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engine knock

I have a 2003 Silverado with the 6 cylinder. When driving at 20 to 40 mph, the engine idles at around 1000 to 1200 rpm. When I accelerate, there is a hesitation and engine knock. Any suggestions?

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Old

Sep 25, 2006 | 10:59 PM

#2

ZX1100F1

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RE: engine knock

When you have a knock in these 4.3L engines that means that you have a lean fuel condition, usually caused by clogged fuel injectors or a restricted fuel filter.

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Old

Oct 23, 2006 | 10:48 AM

#3

SavageXman

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RE: engine knock

Run higher octane fuel and run a couple tanks through it with a good carb/injector cleaner. That should clear it up.

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Old

Oct 24, 2006 | 8:16 AM

#4

uncle bill

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RE: engine knock

Usually, the computer will adjust the timing to eliminate the knock, so You may need a knock sensor.

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43, 43l, chevy, engine, knock, knocking, knocks, liter, silverado

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