SPONSORED LINKS

1992 Buick Regal Speedometer

Tiny
GARY PERSON
  • MEMBER
  • 1992 BUICK REGAL
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 178,000 MILES
1992 Buick Regal 3800 V6. The speedometer doesn't always work. When the speedometer is not working it sits buried on the high side and when up to a certain speed it sometimes will reverse up to about 85 MPH and just sit there. Sometimes the tach will work and sometimes not. The odometer continues to work even though the speedometer is not. What could be the problem and how hard is it to repair?
SPONSORED LINKS
Monday, March 21st, 2011 AT 8:20 PM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
With engine running, measure voltage at tachometer input connector white wire. Voltmeter should indicate 1-10 volts and should vary with engine rpm. If voltmeter reading is not as specified, check white wire for open circuit. If white wire is ok, computer controled coil ignition system is faulty. If voltage reading is correct, replace instrument panel cluster. The above info came from MOD.

I'd check for applicable mil codes, first. Also, check the vehicle speed sensor. My info on this model year, isn't that great.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
+1
Monday, March 21st, 2011 AT 10:19 PM

Please login or register to post a reply.

Related Instrument Cluster Gauge Speedometer Not Working Content

VIEW MORE

Sponsored links