C4 4+3 tranny slips into over drive to soon? - NCRS Discussion Boards

C4 4+3 tranny slips into over drive to soon?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • marcus

    C4 4+3 tranny slips into over drive to soon?

    just bought this car . dont know if im driving it corretly its a 4 speed with over drive in2-3-4 th in each of the gears it slips in over drive to soon what gives? thank you M,Gagnon P.S. need some parts for restoration what do you have?
  • Duke W.
    Beyond Control Poster
    • January 1, 1993
    • 15610

    #2
    Re: C4 4+3 tranny slips into over drive to soon?

    Sounds normal. With the light throttle typical of normal street driving the transmission will want to run overdrive as much as possible in second through fourth. It was a strategy to keep the C4 out of the gas-guzzler tax. GM management said avoid the tax or forget offering a manual transmission, and they could have not beat it under the EPA mandated shift strategy without some kind of automatic assist to keep engine revs as low as possible.

    Dave McClellan has some very good insight into the design philosophy and operating characteristics of the 4+3 in his new book, which is an excellent read. It's available from the NCRS Store.

    Duke

    Comment

    Working...

    Debug Information

    Searching...Please wait.
    An unexpected error was returned: 'Your submission could not be processed because you have logged in since the previous page was loaded.

    Please push the back button and reload the previous window.'
    An unexpected error was returned: 'Your submission could not be processed because the token has expired.

    Please push the back button and reload the previous window.'
    An internal error has occurred and the module cannot be displayed.
    There are no results that meet this criteria.
    Search Result for "|||"