95 olds Achieva Tach

1995 OLDSMOBILE
Avatar
MAVRIK95
  • MEMBER
  • 2 POSTS
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.
Jun 26, 2007 at 10:38 PM
Advertisement
Avatar
2CARPRO JACK
  • ✓ASE Certified Mechanic
  • 11,533 POSTS
  • ASE Certified Mechanic
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 .
Jun 29, 2007 at 8:11 AM
Avatar
MAVRIK95
  • MEMBER
  • 2 POSTS
[quote:cd895e8936="2CarPro Jack"]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 .[/quote:cd895e8936]Thanks a million Jack. Great help
Jul 3, 2007 at 12:23 PM
Avatar
2CARPRO JACK
  • ✓ASE Certified Mechanic
  • 11,533 POSTS
  • ASE Certified Mechanic
youre welcome
Jul 4, 2007 at 7:23 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.