Question about 2000 Harley Davidson FLHTCUI Electra Glide Ultra Classic

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I have a 2002 Ultra Classic with just over 20,000 miles on it. I just wiped it down and took off to ride and noticed the oil pressure gauge was motionless. I turned around and came home- about four miles total. I looked to see if I had knocked a wire loose but could not find one. The motor sounded fine, it has plenty of oil. What else should I check?

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Use an ohm meter to check your sending unit. Disconnect the wire from the front of the sending unit. Put your meter function switch in OHMS, R X 1 range. Put one lead to the stud where the wire came from and the other lead to the engine. You should read zero or very low resistance. Start the engine and you should read a very high resistance. If not, your sending unit, oil pressure switch, is bad. Other wise, you may have a problem with the wiring running from this switch to the gauge.

If your engine has no oil pressure, your tappets would be making a very loud rattling noise. Kinda like a tin can full of rocks. If your engine is running normal and quietly (mechanically) you have oil pressure.

Good Luck
Steve

Posted on Aug 24, 2010

Testimonial: "Thanks for the advice. I found out that there are two oil pressure sending units, one for the gauge and one for a light. The light does go off quickly"

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