1998 Ford Aspire Automatic transmission speed shifting

1998 FORD ASPIRE
150,000 MILES • 4 CYL • 2WD • AUTOMATIC
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MELVYN BECERRA
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  • 1 POST
Hi All:

I would like to know how to modify the xmission shifting speed. It shifts to 4th. gear at about 40 mph and I would like it to be at 35 only.
I believe I need to modify the xmission electronic controller but I don´t know how to.

Thanks
May 7, 2009 at 5:20 PM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
The Trans Control Module (TCM) has no servicable parts and can't be modified. Check on line to see if other replacement modules are available.
May 1, 2010 at 3:00 PM