1998 Honda Civic LIGHTS AND SPEEDOMETER

Tiny
KJ88
  • MEMBER
  • 1998 HONDA CIVIC
  • 4 CYL
  • 2WD
  • MANUAL
  • 146,000 MILES
Speedometer jumps around. Only once in a while the lights will stop flicking but the speedometer never stops jumping. How do I stop this?
Sunday, January 25th, 2009 AT 11:37 PM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Hi KJ88,

The speedometer jumping around could be due to a faulty speed sensor located on the trans axle differential housing below the thermostat housing. It could also be related to the lights flickering and I would suggest rectifying the the lights flickering first.

Possible causes are:
1. Bad body ground. Check all grounds at front fender inner side behind headlights.
2. Alternator. Check the charging rate, ensure crankshaft pulley harmonic balancer is not faulty ( if equipped) before testing charging rate.
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Wednesday, April 7th, 2021 AT 12:56 PM

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