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'99 - '06 GM Truck Modifications
Engine & Performance
1999 extended cab Silverado 4.8/4l60e
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<blockquote data-quote="Ethan.jones01" data-source="post: 21893" data-attributes="member: 11986"><p>So I recently purchased a 1999 Silverado extended cab with the 4.8/4l60e. The truck runs and drives good for the most part and sounds healthy but it’s got some minor issues, one being that when in Drive the Rpms will not exceed 2500rpms even if I put the pedal to the floor. In neutral the engine will rev up 4-5k rpms but while in Drive it will not. Does anyone have any insight on this issue? Could it be a transmission issue or something else? No CEL and truck runs pretty good on the highway no issues accelerating gradually/slowly and holds highway speeds of 60+ easily</p></blockquote><p></p>
[QUOTE="Ethan.jones01, post: 21893, member: 11986"] So I recently purchased a 1999 Silverado extended cab with the 4.8/4l60e. The truck runs and drives good for the most part and sounds healthy but it’s got some minor issues, one being that when in Drive the Rpms will not exceed 2500rpms even if I put the pedal to the floor. In neutral the engine will rev up 4-5k rpms but while in Drive it will not. Does anyone have any insight on this issue? Could it be a transmission issue or something else? No CEL and truck runs pretty good on the highway no issues accelerating gradually/slowly and holds highway speeds of 60+ easily [/QUOTE]
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'99 - '06 GM Truck Modifications
Engine & Performance
1999 extended cab Silverado 4.8/4l60e
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