85 300D throbs at idle when automatic is in"D"

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85 300D throbs at idle when automatic is in"D"

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02-13-2002, 07:21 PM

stevebfl

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Join Date: Mar 2000

Location: Gainesville FL

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The rack is the final actuator link inside the inj pump. Similar to a rack and pinion. All of the pump barrels are geared to the rack so that through one action all delivery chambers change accordingly by rotation.

The pin acts as a dampener, at idle delivery, against the rack. It keeps engine vibrations from influencing delivery amount and causing an oscillation in engine speed.

Your problem sounds more like mounts as Mike said.

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Steve Brotherton
Continental Imports
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