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CATEGORY LISTINGS > CATERPILLAR > hep 3126 surge at idle / hard start [ REFRESH ]
Thread Title:

hep 3126 surge at idle / hard start

Created On Saturday March 12, 2016 00:28 Diesel Talk
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Note Saturday March 12, 2016 00:28 View thread in raw text format
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2004 530,xxx miles runs great above 800 rpm , filters changed - sometimes idles perfect / Last time I fueled I added 16oz of Lucas to my 50 gal tank and was idling perfect 8 miles later . Next morning - hard start and surging again , intermittent problem started in Dec 2015 . Most people say injectors , one guy says maybe accelerator pedal , high pressure oil pump or injection pump . Chicago area
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