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Power Strokes
7.3 Tech
Irregular idle revving up and down VIDEO & Update!
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[QUOTE="Iso-baric, post: 1566804, member: 32327"] Any chance your headlights are flickering in time with engine speed (slower at idle, faster as engine speed increases)? I had a similar issue recently. Started as a small hiccup at idle or at ICP less than 1300 psi. Progressively got worst until engine started hunting similar to yours at idle. Went through all of the usual suspects - swapped known good ICP/IPR/CPS before I noticed the headlight flicker one night. Must have had a bad diode in the alternator causing havoc on the electric side. 5min with the multimeter, and a new alternator later I was back in business. [/QUOTE]
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7.3 Tech
Irregular idle revving up and down VIDEO & Update!
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