From: "John Innis" <jdinnis@gmail.com>
> The Overdrive on the GM 700R4 deritives is notorous for overheating
> when it is used for towing. Not sure why this is, but GM specifically
> states in the owners manual NOT to tow in overdrive. I can tell you
> from experience that it does a number on the tranny. I was with a
> friend in his 2001 Blazer when his transmission went up in smoke. At
> the time he was pulling a medium sized U-Haul box trailer at about 65
> in overdrive. I have seen the same thing in Ford owners manuals.
> Most of thier trucks now have a Tow Mode button, whose sole function
> is to lock out the overdrive.
Interesting. This is counter-intuitive, but you can't beat first-person
experience.
I have no idea if my transmission is a GM 700R4 derivative. I'll be checking
that owner's manual.
--
Phil Ethier West Side Saint Paul Minnesota USA
1962 Triumph TR4 CT2846L, 1992 Saturn SL2, 1993 Suburban,
1994 Miata C package
pethier [at] comcast [dot] net http://forum.mnautox.com/forums/
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I decry the textmessagization of the American-English language.
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