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Forum: C4 Technical Issues

Any and all problems involving your C4, including ZR1 and LT4. INCLUDE THE YEAR OF YOUR CAR.

  1. Sticky Thread Sticky: OPTISPARK DIAGNOSTICS, or is it something else ?

    Started by c4c5specialist, 12-20-2011 10:25 AM
    2 Pages
    1 2
    • Replies: 18
    • Views: 20,404
    07-28-2016, 03:58 AM Go to last post
  1. Wink Battery suppliers

    Started by Chester, 12-15-2017 05:16 PM
    • Replies: 6
    • Views: 269
    01-06-2018, 07:33 AM Go to last post
  2. Question C4 opti numbers

    Started by Chester, 12-07-2017 06:38 AM
    • Replies: 3
    • Views: 208
    01-01-2018, 06:30 PM Go to last post
  3. four post lift installers

    Started by Chester, 12-31-2017 08:52 AM
    • Replies: 0
    • Views: 100
    12-31-2017, 08:52 AM Go to last post
  4. Lift to work on c3&C4

    Started by Chester, 12-02-2017 04:47 PM
    • Replies: 9
    • Views: 465
    12-30-2017, 01:09 AM Go to last post
  5. Question exhaust manifold paint

    Started by Chester, 12-02-2017 04:34 PM
    • Replies: 4
    • Views: 261
    12-30-2017, 01:06 AM Go to last post
  6. holliday wishes

    Started by ken mohr, 12-25-2017 04:51 AM
    • Replies: 0
    • Views: 80
    12-25-2017, 04:51 AM Go to last post
  7. Msds

    Started by Chester, 12-18-2017 06:09 AM
    • Replies: 0
    • Views: 104
    12-18-2017, 06:09 AM Go to last post
  8. Wipers from Hell and a loss of Cruise?

    Started by ChuckG, 06-23-2014 08:31 PM
    • Replies: 9
    • Views: 1,991
    12-12-2017, 03:15 PM Go to last post
  9. wtb kwik lift

    Started by Chester, 12-12-2017 06:02 AM
    • Replies: 0
    • Views: 119
    12-12-2017, 06:02 AM Go to last post
  10. Balancer c4 removal

    Started by Chester, 10-08-2017 05:18 PM
    • Replies: 1
    • Views: 297
    12-07-2017, 06:46 AM Go to last post
  11. leather refinish

    Started by ken mohr, 09-05-2016 03:40 AM
    • Replies: 6
    • Views: 982
    12-04-2017, 04:44 AM Go to last post
  12. low coolant

    Started by ken mohr, 09-19-2017 03:42 AM
    2 Pages
    1 2
    • Replies: 21
    • Views: 1,284
    11-14-2017, 05:27 AM Go to last post
  13. Need new opti C4

    Started by Chester, 10-20-2017 05:44 AM
    • Replies: 7
    • Views: 390
    10-25-2017, 09:40 AM Go to last post
  14. Dealers opti

    Started by Chester, 10-21-2017 03:50 PM
    • Replies: 0
    • Views: 165
    10-21-2017, 03:50 PM Go to last post
  15. Thumbs up Burping my baby

    Started by Chester, 10-16-2017 05:02 AM
    • Replies: 0
    • Views: 181
    10-16-2017, 05:02 AM Go to last post
  16. Spark plug wire removal opti

    Started by Chester, 10-14-2017 05:09 AM
    • Replies: 0
    • Views: 179
    10-14-2017, 05:09 AM Go to last post
  17. 87 Corvette Service Engine Soon Code 13 & 44

    Started by jsm00z28ss, 09-18-2017 07:54 PM
    • Replies: 0
    • Views: 211
    09-18-2017, 07:54 PM Go to last post
  18. No crank

    Started by Chester, 09-03-2017 06:13 AM
    • Replies: 3
    • Views: 387
    09-05-2017, 05:31 PM Go to last post
  19. 93 corvette rough idle and missing

    Started by Incahootz69, 06-30-2016 10:49 PM
    • Replies: 1
    • Views: 942
    09-03-2017, 06:07 AM Go to last post
  20. Vacuuming cooling system 1993 corvette

    Started by Chester, 08-28-2017 05:47 AM
    • Replies: 0
    • Views: 302
    08-28-2017, 05:47 AM Go to last post

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