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Engine Surges At Idle

Engine Surges At Idle


Possible Cause

   

Possible Remedy

Air in fuel system

   

Bleed fuel system, eliminate air leaks

Tank empty or tank vent blocked

   

Fill tank/bleed system, check tank vent

Low idle misadjusted

 

Readjust idle stop screw

Bumper spring misadjusted (RS...governors)

 

Readjust bumper spring

Governor misadjusted or defective

 

Readjust or repair

Fuel injection pump defective or cannot be adjusted

 

Remove pump and service

 

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