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95 olds Achieva Tach

Tiny
MAVRIK95
  • MEMBER
  • 1995 OLDSMOBILE
My 95 Olds Achieva Tach goes from 6 o'clock position to just below 0 rpms after ignition. I just changed the plugs but not the wires. I'm pretty sure it worked before the change. Also, the battery (-) neg cable came a little loose but has been tightened. When turned off the tach needle returns to 6 o'clock. Did I knock something loose when changing plugs? I don't know what to check. Thanks.
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Tuesday, June 26th, 2007 AT 10:38 PM

3 Replies

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Do you mean the tach isnt really working? Goes from way below 0 then up to 0 when the car starts? GM gauges do that sometimes when the batt has been disconnected. We have in the past been able to remove the cluster and manually move the needle to its correct starting position.
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Friday, June 29th, 2007 AT 8:11 AM
Tiny
MAVRIK95
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Thanks a million Jack. Great help
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Tuesday, July 3rd, 2007 AT 12:23 PM
Tiny
2CARPRO JACK
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Youre welcome
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Wednesday, July 4th, 2007 AT 7:23 AM

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